XCL205A183CR-G [TOREX]
Switching Regulator, 0.6A, PACKAGE-8;
| 型号： | XCL205A183CR-G |
| 厂家： | 
Torex Semiconductor |
| 描述： | Switching Regulator, 0.6A, PACKAGE-8 开关 |
| 文件： | 总27页 (文件大小：1175K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XCL205/XCL206/XCL207Series
Inductor Built-in Step-Down “micro DC/DC” Converters
■GENERAL DESCRIPTION
ETR2801-014
☆GreenOperation Compatible
The XCL205/XCL206/XCL207 series is a synchronous step-down micro DC/DC converter which integrates an inductor and a
control IC in one tiny package (2.5mm×2.0mm, H=1.0mm). A stable power supply with an output current of 600mA is
configured using only two capacitors connected externally.
Operating voltage range is from 2.0V to 6.0V(XCL20xG:1.8V～6.0V). Output voltage is internally set in a range from 0.8V to
4.0V in increments of 0.05V. The device is operated by 3.0MHz, and includes 0.42ΩP-channel driver transistor and 0.52Ω
N-channel switching transistor. As for operation mode, the XCL205 series is PWM control, the XCL206 series is automatic
PWM/PFM switching control and the XCL207 series can be manually switched between the PWM control mode and the
automatic PWM/PFM switching control mode, allowing fast response, low ripple and high efficiency over the full range of loads
(from light load to heavy load). During stand-by, the device is shutdown to reduce current consumption to as low as 1.0μA or
less. With the built-in UVLO (Under Voltage Lock Out) function, the internal driver transistor is forced OFF when input voltage
becomes 1.4V or lower. XCL205B(G,F)/XCL206B(G,F)/XCL207B(G,F) series provide short-time turn-on by the soft start
function internally set in 0.25 ms (TYP). XCL205B(C,G,F) /XCL206 B(C,G,F) / XCL207B(C,G,F) integrate CL auto discharge
function which enables the electric charge stored at the output capacitor CL to be discharged via the internal auto-discharge
switch located between the LX and VSS pins. When the devices enter stand-by mode, output voltage quickly returns to the VSS
level as a result of this function.
■FEATURES
■APPLICATIONS
●Mobile phones, Smart phones
Ultra Small
: 2.5mm×2.0mm, H=1.0mm
: 2.0V ~ 6.0V(A/B/C Type)
1.8V ~ 6.0V(G/F Type)
: 0.8V ~ 4.0V (+2.0%)
: 90% (VIN=4.2V, VOUT=3.3V)
: 600mA
Input Voltage
●Bluetooth Headsets
Output Voltage
High Efficiency
Output Current
Oscillation Frequency
Maximum Duty Cycle
Capacitor
●WiMAX PDAs, MIDs, UMPCs
●Portable game consoles
●Digital cameras, Camcorders
●Electronic dictionaries
: 3.0MHz (+15%)
: 100%
: Low ESR Ceramic
CE Function
: Active High
Soft-Start Circuit Built-In
CL High Speed Auto Discharge
:Current Limiter Circuit Built-In
(Constant Current & Latching)
: PWM (XCL205)
Protection Circuits
Control Methods
PWM/PFM Auto (XCL206)
PWM/PFM Manual (XCL207)
: -40℃～+85℃
Operating Ambient Temperature
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL PERFORMANCE
■TYPICAL APPLICATION CIRCUIT
CHARACTERISTICS
XCL205/206/207 Series A/B/C/G Types
XCL205A333xx/XCL206A333xx/XCL207A333xx
100
L1
XCL206/XCL207(PWM/PFM)
80
LX
VIN
CIN
CL
10μF
4.7μF
Vss
60
Vss
VIN= 5.5V
600mA
5.0V
VOUT
CE/MODE
L2
40
20
0
4.2V
XCL205/XCL207
(PWM)
VOUT=3.3V
(TOP VIEW)
* “L1 and LX”, and “L2 and VOUT” is connected by wiring.
0.1
1
10
100
1000
Output Current:IOUT (mA)
1/27
XCL205/XCL206/XCL207 Series
■PIN CONFIGURATION
L1
7
1
2
3
6
5
4
Lx
V
IN
* It should be connected the VSS pin (No. 2 and 5) to the GND pin.
* If the dissipation pad needs to be connected to other pins, it should be
connected to the GND pin.
Vss
V
ss
CE/MODE
VOUT/FB
* Please refer to pattern layout page for the connecting to PCB.
8
L2
(BOTTOM VIEW)
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
1
Lx
VSS
Switching Output
Ground
2,5
VOUT
FB
Fixed Output Voltage Pin (A/B/C/G types)
Output Voltage Sense Pin (F type)
Chip Enable & Mode Switch
Power Input
3
4
6
7
8
CE / MODE
VIN
L1
Inductor Electrodes
L2
■PRODUCT CLASSIFICATION
●Ordering Information
(*1)
XCL205①②③④⑤⑥-⑦
XCL206①②③④⑤⑥-⑦
XCL207①②③④⑤⑥-⑦
Fixed PWM control
(*1)
(*1)
PWM / PFM automatic switching control
Manual Mode Selection Pin (Semi-custom)
DESIGNATOR
ITEM
SYMBOL
A
DESCRIPTION
VIN≧2.0V,
No CL auto discharge, Standard soft-start
VIN≧2.0V, Fixed Output Voltage
CL auto discharge, High speed soft-start
VIN≧2.0V, Fixed Output Voltage
CL auto discharge, Standard soft-start
VIN≧1.8V, Fixed Output Voltage
CL auto discharge, High speed soft-start
VIN≧1.8V, CL auto discharge,
B
C
G
F
Fixed Output
Voltage
Functions selection
(All CE active high)
①
Output Voltage
External Setting
High speed soft-start
Output voltage options
e.g. 1.2V → ②=1, ③=2
0~9
A~M
1.25V → ②=1, ③=C
0.05V increments :
Fixed Output Voltage
②③
0.05=A, 0.15=B, 0.25=C, 0.35=D, 0.45=E,
0.55=F, 0.65=H, 0.75=K, 0.85=L, 0.95=M
08
3
External Setting 0.8V ( F type)
3.0MHz
Output Voltage External Setting
Oscillation Frequency
④
AR-G(*2)
CL-2025 (3,000pcs/Reel)
Packages
(Order Unit)
⑤⑥-⑦
CR-G(*3)
CL-2025-02(3,000pcs/Reel)
(*1) The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
(*2) AR-G is storage temperature range "-40 ℃ ~ +105 ℃".
(*3) CR-G is storage temperature range "-40 ℃ ~ +125 ℃".
2/27
XCL205/XCL206/XCL207
Series
■BLOCK DIAGRAM
2) XCL205 / XCL206 / XCL207 series B/C/G Type
1) XCL205 / XCL206 / XCL207 series A Type
3) XCL205 / XCL206 / XCL207 series F Type
L2
L1
Lx
Inductor
Phase
Current Feedback
Current Limit
FB
Compensation
PWM
Comparator
Error
Amp.
FB
Synch
Buffer
Drive
Logic
VSHORT
Vref with
Soft Start,
CE
PWM/PFM
Selector
VIN
VSS
Ramp Wave
Generator
OSC
UVLO Cmp
CE/
UVLO
R3
R4
CE/MODE
Control
Logic
VSS
CE/MODE
NOTE: The XCL205 offers a fixed PWM control, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to "L" level inside.
The XCL206 control scheme is PWM/PFM automatic switching, a signal from CE/MODE Control Logic to PWM/PFM Selector is fixed to
"H" level inside. The diodes placed inside are ESD protection diodes and parasitic diodes.
■ABSOLUTE MAXIMUM RATINGS
Ta = 25℃
PARAMETER
VIN Pin Voltage
SYMBOL
VIN
RATINGS
- 0.3 ~ +6.5
- 0.3 ~ VIN + 0.3
- 0.3 ~ +6.5
- 0.3 ~ +6.5
- 0.3 ~ +6.5
±1500
UNITS
V
V
LX Pin Voltage
VLX
VOUT Pin Voltage(A/B/C/G types)
VFB Pin Voltage(F type)
CE/MODE Pin Voltage
LX Pin Current
VOUT
VFB
V
V
VCE
V
ILX
mA
mW
℃
Power Dissipation
Pd
1000(*1)
Operating Ambient Temperature
Topr
- 40 ~ + 85
- 40 ~ + 105
- 40 ~ + 125
CL-2025
Storage
Tstg
℃
Temperature(*2)
CL-2025-02
(*1) The power dissipation figure shown is PCB mounted (40mm×40mm, t=1.6mm, Glass Epoxy FR-4).
Please refer to page 17 for details.
(*2) Storage temperature, are divided by the product specification of the package.
3/27
XCL205/XCL206/XCL207 Series
■ELECTRICAL CHARACTERISTICS
●XCL205Axx3AR/XCL206Axx3AR/XCL207Axx3AR/XCL205Axx3CR/XCL206Axx3CR/XCL207Axx3CR, Ta=25℃
PARAMETER
Output Voltage
SYMBOL
VOUT
CONDITIONS
MIN.
TYP.
MAX. UNITS CIRCUIT
When connected to external components,
VIN=VCE=5.0V, IOUT=30mA
<E-1> <E-2> <E-3>
V
V
①
①
①
Operating Voltage Range
Maximum Output Current
VIN
2.0
-
-
6.0
-
VIN=VOUT(T)+2.0V, VCE=1.0V
When connected to external components (*9)
IOUTMAX
600
mA
V
CE=VIN,VOUT=0V,
UVLO Voltage
VUVLO
1.00
1.40
1.78
V
③
Voltage which Lx pin holding “L” level (*1, *11)
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
-
-
-
46
21
0
65
35
IDD
ISTB
fOSC
VIN=VCE=5.0V, VOUT=VOUT(T)×1.1V
μA
μA
kHz
②
②
①
VIN=5.0V, VCE=0V, VOUT=VOUT(T)×1.1V
1.0
When connected to external components,
VIN=VOUT(T)+2.0V,VCE=1.0V, IOUT=100mA
Oscillation Frequency
2550
3000
3450
When connected to external components,
VIN=VOUT(T)+2.0V, VCE=VIN , IOUT=1mA
PFM Switching Current (*12)
IPFM
<E-4> <E-5> <E-6>
mA
⑩
PFM Duty Limit (*12)
Maximum Duty Cycle
Minimum Duty Cycle
V
CE= VIN= VOUT(T) +1.0V, IOUT=1mA
-
100
-
200
300
%
%
%
①
③
③
DTYLIMIT_PFM
DMAX
VIN=VCE=5.0V, VOUT=VOUT (T)×0.9V
-
-
-
VIN=VCE=5.0V, VOUT=VOUT (T)×1.1V
0
DMIN
When connected to external components,
Efficiency(*2)
-
<E-7>
-
%
①
EFFI
V
CE=VIN＝VOUT (T)+1.2V, IOUT = 100mA
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
Lx SW "H" Leakage Current (*5)
Lx SW "L" Leakage Current (*5)
Current Limit (*10)
RLｘH
RLｘH
RLｘL
RLｘL
ILEAKH
ILEAKL
ILIM
VIN=VCE=5.0V, VOUT=0V, ILX=100mA (*3)
VIN=VCE=3.6V, VOUT=0V, ILX=100mA (*3)
VIN=VCE=5.0V (*4)
-
-
-
-
-
-
0.35
0.42
0.45
0.52
0.01
0.01
1050
0.55
0.67
0.65
0.77
1.0
Ω
Ω
④
④
-
Ω
VIN=VCE=3.6V, (*4)
Ω
-
VIN=VOUT=5.0V, VCE=0V, LX=0V
VIN=VOUT=5.0V, VCE=0V, LX= 5.0V
VIN=VCE=5.0V, VOUT=VOUT(T)×0.9V (*8)
IOUT =30mA
μA
μA
mA
⑤
⑤
⑥
1.0
900
1350
Output Voltage
Temperature Characteristics
△
VOUT/
-
±100
-
ppm/ ℃
①
③
③
(VOUT・△Topr)
-40℃≦Topr≦85℃
V
OUT=0V, Applied voltage to VCE
Voltage changes Lx to “H” level (*11)
OUT=0V, Applied voltage to VCE
,
CE "H" Voltage
CE "L" Voltage
VCEH
0.65
VSS
-
-
VIN
V
V
V
,
VCEL
0.25
Voltage changes Lx to “L” level (*11)
When connected to external components,
IOUT=1mA (*6), Voltage which oscillation
frequency becomes 2550kHz≦fOSC≦3450kHz (*13)
When connected to external components,
IOUT=1mA (*6), Voltage which oscillation
frequency becomes fOSC＜2550kHz (*13)
VIN=VCE=5.0V, VOUT=0V
PWM "H" Level Voltage (*13)
PWM "L" Level Voltage (*13)
VPWMH
-
-
-
VIN - 1.0
V
V
①
①
VIN
0.25
-
VPWML
-
CE "H" Current
CE "L" Current
ICEH
ICEL
- 0.1
- 0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
VIN=5.0V, VCE=0V, VOUT=0V
When connected to external components,
Soft Start Time
Latch Time
tSS
0.5
1.0
0.9
-
2.5
20
ms
ms
①
⑦
V
CE=0V→VIN , IOUT=1mA
VIN=VCE=5.0V, VOUT=0.8×VOUT
(T)
tLAT
Short Lx at 1Ω resistance (*7)
Sweeping VOUT, VIN=VCE=5.0V, Short Lx at
1Ω resistance, VOUT voltage which Lx becomes “L” <E-8> <E-9> <E-10>
level within 1ms
Short Protection
Threshold Voltage
VSHORT
V
⑦
Inductance Value
Allowed Inductor Current
L
IDC
Test frequency=1MHz
ΔT=40℃
-
-
1.5
1000
-
-
μH
mA
Test conditions: Unless otherwise stated, VIN=5.0V, VOUT(T)=Nominal Voltage
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100
*3: ON resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10μA (maximum) may leak.
*6:The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0V and equal to or greater than VCEH.
*7:Time until it short-circuits VOUT with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=VIN~VIN-1.2V, “L”=+0.1V~-0.1V
*12: IPFM and DTYLIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: VPWMH and VPWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
4/27
XCL205/XCL206/XCL207
Series
■ELECTRICAL CHARACTERISTICS (Continued)
●XCL205Bxx3AR/XCL206Bxx3AR/XCL207Bxx3AR/XCL205Bxx3CR/XCL206Bxx3CR/XCL207Bxx3CR, Ta=25℃
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX. UNITS CIRCUIT
When connected to external components,
VIN=VCE=5.0V, IOUT=30mA
Output Voltage
VOUT
VIN
<E-1> <E-2> <E-3>
V
V
①
①
①
Operating Voltage Range
Maximum Output Current
2.0
-
-
6.0
-
VIN=VOUT(T)+2.0V, VCE=1.0V
IOUTMAX
600
mA
When connected to external components (*9)
VCE=VIN,VOUT=0V,
UVLO Voltage
VUVLO
IDD
1.00
1.40
1.78
V
③
②
Voltage which Lx pin holding “L” level (*1, *11)
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
-
-
-
46
21
0
65
35
VIN=VCE=5.0V, VOUT=VOUT(T)×1.1V
μA
VIN=5.0V, VCE=0V, VOUT=VOUT(T)×1.1V
ISTB
fOSC
1.0
μA
②
①
When connected to external components,
Oscillation Frequency
2550
3000
3450
kHz
V
IN =VOUT(T)+2.0V,VCE=1.0V, IOUT=100mA
When connected to external components,
PFM Switching Current (*12)
PFM Duty Limit (*12)
IPFM
<E-4> <E-5> <E-6>
mA
%
⑩
①
V
V
IN =VOUT(T)+2.0V, VCE = VIN , IOUT=1mA
CE=VIN= VOUT(T) +1.0V, IOUT=1mA
-
200
300
DTYLIMIT_PFM
DMAX
VIN=VCE=5.0V, VOUT=VOUT (T)×0.9V
Maximum Duty Cycle
Minimum Duty Cycle
100
-
-
-
-
%
%
③
③
VIN=VCE=5.0V, VOUT=VOUT (T)×1.1V
DMIN
0
When connected to external components,
Efficiency(*2)
EFFI
-
<E-7>
-
%
①
V
CE=VIN＝VOUT (T)+1.2V, IOUT=100mA
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
Lx SW "H" Leakage Current (*5)
Current Limit (*10)
VIN=VCE=5.0V, VOUT=0V, ILX=100mA (*3)
VIN=VCE=3.6V, VOUT=0V, ILX=100mA (*3)
VIN=VCE=5.0V (*4)
RLｘH
RLｘH
RLｘL
RLｘL
ILEAKH
ILIM
-
-
-
-
-
0.35
0.42
0.45
0.52
0.01
1050
0.55
0.67
0.65
0.77
1.0
Ω
Ω
④
④
-
-
⑨
Ω
VIN=VCE = 3.6V (*4)
Ω
VIN=VOUT=5.0V, VCE =0V, LX=0V
VIN=VCE=5.0V, VOUT=VOUT (T)×0.9V (*8)
μA
mA
900
1350
⑥
Output Voltage
Temperature Characteristics
IOUT =30mA
-40℃≦Topr≦85℃
△
VOUT/
-
±100
-
ppm/ ℃
①
③
③
(VOUT・△Topr)
VOUT=0V, Applied voltage to VCE
,
CE "H" Voltage
CE "L" Voltage
VCEH
0.65
VSS
-
-
VIN
V
V
Voltage changes Lx to “H” level (*11)
VOUT=0V, Applied voltage to VCE
,
VCEL
0.25
Voltage changes Lx to “L” level (*11)
When connected to external components,
PWM "H" Level Voltage (*13)
PWM "L" Level Voltage (*13)
I
OUT=1mA (*6), Voltage which oscillation
VPWMH
-
-
-
VIN - 1.0
V
V
①
①
frequency becomes 2550kHz≦fOSC≦3450kHz (*13)
When connected to external components,
VIN
0.25
-
I
OUT=1mA (*6), Voltage which oscillation
VPWML
-
frequency becomes fOSC＜2550kHz (*13)
VIN=VCE=5.0V, VOUT=0V
CE "H" Current
CE "L" Current
ICEH
ICEL
- 0.1
- 0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
VIN=5.0V, VCE=0V, VOUT=0V
When connected to external components,
Soft Start Time
Latch Time
tSS
-
<E-11> <E-12>
20
ms
ms
①
⑦
V
CE=0V→VIN , IOUT=1mA
VIN=VCE=5.0V, VOUT=0.8×VOUT(T)
tLAT
1.0
-
Short Lx at 1Ω resistance (*7)
Sweeping VOUT, VIN=VCE=5.0V, Short Lx at
1Ω resistance, VOUT voltage which Lx becomes “L”
level within 1ms
VIN=5.0V, LX=5.0V, VCE=0V, VOUT=Open
Test frequency =1MHz
ΔT=40℃
Short Protection
Threshold Voltage
VSHORT
<E-8> <E-9> <E-10>
V
⑦
⑧
CL Discharge
Inductance Value
RDCHG
L
200
300
1.5
450
Ω
-
-
-
-
μH
mA
Allowed Inductor Current
IDC
1000
Test conditions: Unless otherwise stated, VIN=5.0V, VOUT (T) =Nominal Voltage
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100
*3: ON resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10μA (maximum) may leak.
*6:The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0V and equal to or greater than VCEH.
*7:Time until it short-circuits VOUT with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=VIN~VIN-1.2V, “L”=+0.1V~-0.1V
*12: IPFM and DTYLIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: VPWMH and VPWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
5/27
XCL205/XCL206/XCL207 Series
■ELECTRICAL CHARACTERISTICS (Continued)
●XCL205Cxx3AR/XCL206Cxx3AR/XCL207Cxx3AR/XCL205Cxx3CR/XCL206Cxx3CR/XCL207Cxx3CR, Ta=25℃
PARAMETER
Output Voltage
SYMBOL
VOUT
CONDITIONS
MIN.
TYP.
MAX. UNITS CIRCUIT
When connected to external components,
IN = VCE =5.0V, IOUT =30mA
<E-1> <E-2> <E-3>
V
V
①
①
①
V
Operating Voltage Range
Maximum Output Current
VIN
2.0
-
-
6.0
-
VIN=VOUT(T)+2.0V, VCE=1.0V
IOUTMAX
600
mA
When connected to external components (*9)
V
CE=VIN,VOUT=0V,
UVLO Voltage
VUVLO
IDD
1.00
-
1.40
1.78
V
③
②
Voltage which Lx pin holding “L” level (*1, *11)
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
46
21
0
65
35
VIN =VCE=5.0V, VOUT= VOUT(T)×1.1V
μA
ISTB
fOSC
VIN =5.0V, VCE=0V, VOUT= VOUT(T)×1.1V
-
1.0
μA
②
①
When connected to external components,
Oscillation Frequency
2550
3000
3450
kHz
V
IN =VOUT(T)+2.0V,VCE=1.0V, IOUT=100mA
When connected to external components,
IN =VOUT(T)+2.0V, VCE = VIN , IOUT=1mA
PFM Switching Current (*12)
IPFM
<E-4> <E-5> <E-6>
mA
⑩
V
PFM Duty Limit (*12)
Maximum Duty Cycle
Minimum Duty Cycle
DTYLIMIT_PFM
MAXDTY
MINDTY
VCE= VIN = VOUT(T) +1.0V, IOUT=1mA
-
100
-
200
300
%
%
%
①
③
③
VIN = VCE =5.0V, VOUT = VOUT (T)×0.9V
-
-
-
VIN = VCE =5.0V, VOUT = VOUT (T)×1.1V
0
When connected to external components,
Efficiency(*2)
EFFI
-
<E-7>
-
%
①
V
CE = VIN ＝ VOUT (T)+1.2V, IOUT = 100mA
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
Lx SW "H" Leakage Current (*5)
Current Limit (*10)
RLｘH
RLｘH
RLｘL
RLｘL
ILEAKH
ILIM
VIN = VCE = 5.0V, VOUT = 0V,ILX = 100mA (*3)
VIN = VCE = 3.6V, VOUT = 0V,ILX = 100mA (*3)
VIN = VCE = 5.0V (*4)
-
-
-
-
-
0.35
0.42
0.45
0.52
0.01
1050
0.55
0.67
0.65
0.77
1.0
Ω
Ω
④
④
-
-
⑨
Ω
VIN = VCE = 3.6V (*4)
Ω
VIN= VOUT =5.0V, VCE =0V, LX=0V
VIN = VCE= 5.0V, VOUT = VOUT (T)×0.9V (*8)
IOUT =30mA
μA
mA
900
1350
⑥
Output Voltage
Temperature Characteristics
△
VOUT/
-
±100
-
ppm/ ℃
①
③
③
(VOUT・△Topr)
-40℃≦Topr≦85℃
VOUT=0V, Applied voltage to VCE
,
CE "H" Voltage
CE "L" Voltage
VCEH
0.65
VSS
-
-
6.0
0.25
V
V
Voltage changes Lx to “H” level (*11)
VOUT=0V, Applied voltage to VCE
,
VCEL
Voltage changes Lx to “L” level (*11)
When connected to external components,
OUT=1mA (*6), Voltage which oscillation
PWM "H" Level Voltage (*13)
PWM "H" Level Voltage (*13)
I
VPWMH
-
-
-
VIN - 1.0
V
V
①
①
frequency becomes 2550kHz≦fOSC≦3450kHz (*13)
When connected to external components,
VIN
0.25
-
I
OUT=1mA (*6), Voltage which oscillation
VPWML
-
frequency becomes fOSC＜2550kHz (*13)
VIN = VCE =5.0V, VOUT = 0V
CE "H" Current
CE "L" Current
ICEH
ICEL
- 0.1
- 0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
VIN =5.0V, VCE = 0V, VOUT = 0V
When connected to external components,
Soft Start Time
Latch Time
tSS
0.5
1.0
0.9
-
2.5
20
ms
ms
①
⑦
V
CE=0V→VIN , IOUT=1mA
VIN=VCE=5.0V, VOUT=0.8×VOUT(T)
tLAT
Short Lx at 1Ω resistance (*7)
Sweeping VOUT, VIN=VCE=5.0V, Short Lx at
1Ω resistance, VOUT voltage which Lx becomes “L”
level within 1ms
Short Protection
Threshold Voltage
VSHORT
<E-8> <E-9> <E-10>
V
⑦
CL Discharge
Inductance Value
RDCHG
L
VIN = 5.0V LX = 5.0V VCE = 0V VOUT = open
Test frequency=1MHz
200
300
1.5
450
Ω
⑧
-
-
-
-
-
μH
mA
Allowed Inductor Current
IDC
Δ
T=40℃
1000
-
Test conditions: Unless otherwise stated, VIN=5.0V, VOUT (T) = Nominal Voltage
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100
*3: ON resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10μA (maximum) may leak.
*6:The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0V and equal to or greater than VCEH.
*7:Time until it short-circuits VOUT with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=VIN~VIN-1.2V, “L”=+0.1V~-0.1V
*12: IPFM and DTYLIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: VPWMH and VPWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
6/27
XCL205/XCL206/XCL207
Series
■ELECTRICAL CHARACTERISTICS (Continued)
●XCL205Gxx3AR/XCL206Gxx3AR/XCL207Gxx3AR/XCL205Gxx3CR/XCL206Gxx3CR/XCL207Gxx3CR, Ta=25℃
PARAMETER
Output Voltage
SYMBOL
VOUT
CONDITIONS
MIN.
TYP.
MAX. UNITS CIRCUIT
When connected to external components,
IN = VCE =5.0V, IOUT =30mA
<E-1> <E-2> <E-3>
V
V
①
①
①
V
Operating Voltage Range
Maximum Output Current
VIN
1.8
-
-
6.0
-
VIN=VOUT(T)+2.0V, VCE=1.0V
IOUTMAX
600
mA
When connected to external components (*9)
V
CE=VIN,VOUT(T)×0.5V(*14)
,
UVLO Voltage
VUVLO
IDD
1.00
1.40
1.78
V
③
②
Voltage which Lx pin holding “L” level (*1, *11)
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
-
-
-
46
21
0
65
35
VIN =VCE=5.0V, VOUT= VOUT(T)×1.1V
μA
ISTB
fOSC
VIN =5.0V, VCE=0V, VOUT= VOUT(T)×1.1V
1.0
μA
②
①
When connected to external components,
V
Oscillation Frequency
2550
3000
3450
kHz
IN =VOUT(T)+2.0V,VCE=1.0V, IOUT=100mA
When connected to external components,
VIN =VOUT(T)+2.0V, VCE = VIN , IOUT=1mA
PFM Switching Current (*12)
IPFM
<E-4> <E-5> <E-6>
mA
⑩
PFM Duty Limit (*12)
Maximum Duty Cycle
Minimum Duty Cycle
DTYLIMIT_PFM
MAXDTY
MINDTY
VCE= VIN = VOUT(T) +1.0V, IOUT=1mA
-
100
-
200
300
%
%
%
①
③
③
VIN = VCE =5.0V, VOUT = VOUT (T)×0.9V
-
-
-
VIN = VCE =5.0V, VOUT = VOUT (T)×1.1V
0
When connected to external components,
Efficiency(*2)
EFFI
-
<E-7>
-
%
①
V
CE = VIN ＝ VOUT (T)+1.2V, IOUT = 100mA
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
Lx SW "H" Leakage Current (*5)
Current Limit (*10)
RLｘH
RLｘH
RLｘL
RLｘL
ILEAKH
ILIM
VIN = VCE = 5.0V, VOUT = 0V,ILX = 100mA (*3)
VIN = VCE = 3.6V, VOUT = 0V,ILX = 100mA (*3)
VIN = VCE = 5.0V (*4)
-
-
-
-
-
0.35
0.42
0.45
0.52
0.01
1050
0.55
0.67
0.65
0.77
1.0
Ω
Ω
④
④
-
-
⑨
Ω
VIN = VCE = 3.6V (*4)
Ω
VIN= VOUT =5.0V, VCE =0V, LX=0V
VIN = VCE= 5.0V, VOUT = VOUT (T)×0.9V (*8)
IOUT =30mA
μA
mA
900
1350
⑥
Output Voltage
Temperature Characteristics
△
VOUT/
-
±100
-
ppm/ ℃
①
③
③
(VOUT・△Topr)
-40℃≦Topr≦85℃
VOUT=0V, Applied voltage to VCE
,
CE "H" Voltage
CE "L" Voltage
VCEH
0.65
VSS
-
-
6.0
0.25
V
V
Voltage changes Lx to “H” level (*11)
VOUT=0V, Applied voltage to VCE
,
VCEL
Voltage changes Lx to “L” level (*11)
When connected to external components,
OUT=1mA (*6), Voltage which oscillation
PWM "H" Level Voltage (*13)
PWM "H" Level Voltage (*13)
I
VPWMH
-
-
-
VIN - 1.0
V
V
①
①
frequency becomes 2550kHz≦fOSC≦3450kHz (*13)
When connected to external components,
VIN
0.25
-
I
OUT=1mA (*6), Voltage which oscillation
VPWML
-
frequency becomes fOSC＜2550kHz (*13)
VIN = VCE =5.0V, VOUT = 0V
CE "H" Current
CE "L" Current
ICEH
ICEL
- 0.1
- 0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
VIN =5.0V, VCE = 0V, VOUT = 0V
When connected to external components,
Soft Start Time
Latch Time
tSS
-
<E-11> <E-12>
20
ms
ms
①
⑦
V
CE=0V→VIN , IOUT=1mA
VIN=VCE=5.0V, VOUT=0.8×VOUT(T)
tLAT
1.0
-
Short Lx at 1Ω resistance (*7)
Sweeping VOUT, VIN=VCE=5.0V, Short Lx at
1Ω resistance, VOUT voltage which Lx becomes “L”
level within 1ms
Short Protection
Threshold Voltage
VSHORT
<E-8> <E-9> <E-10>
V
⑦
CL Discharge
Inductance Value
RDCHG
L
VIN = 5.0V LX = 5.0V VCE = 0V VOUT = open
Test frequency=1MHz
200
300
1.5
450
Ω
⑧
-
-
-
-
-
μH
mA
Allowed Inductor Current
IDC
Δ
T=40℃
1000
-
Test conditions: Unless otherwise stated, VIN=5.0V, VOUT (T) = Nominal Voltage
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100
*3: ON resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10μA (maximum) may leak.
*6:The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0V and equal to or greater than VCEH.
*7:Time until it short-circuits VOUT with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=VIN~VIN-1.2V, “L”=+0.1V~-0.1V
*12: IPFM and DTYLIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: VPWMH and VPWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
*14: VIN is applied when VOUT (T) x 0.5V becomes more than VIN.
7/27
XCL205/XCL206/XCL207 Series
■ELECTRICAL CHARACTERISTICS (Continued)
●XCL205F083AR/XCL206F083AR/XCL207F083AR/XCL205F083CR/XCL206F083CR/XCL207F083CR, Ta=25℃
PARAMETER
FB Voltage
SYMBOL
VFB
CONDITIONS
MIN.
0.784
1.8
TYP.
MAX. UNITS CIRCUIT
VIN=VCE=5.0V, VFB voltage which Decrease
0.800 0.816
V
V
③
⑪
⑪
V
FB from 0.9V, Lx becomes “H” (*11) level
Operating Voltage Range
Maximum Output Current
VIN
-
-
6.0
-
VIN=VOUT(T)+2.0V, VCE=1.0V
IOUTMAX
600
mA
When connected to external components (*9)
V
CE=VIN,VFB= 0.4V,
UVLO Voltage
VUVLO
IDD
1.00
1.40
1.78
V
③
②
Voltage which Lx pin holding “L” level (*1, *11)
Supply Current (XCL205)
Supply Current (XCL206, XCL207)
Stand-by Current
-
-
-
46
21
0
65
35
VIN =VCE=5.0V, VFB= 0.88V
μA
ISTB
fOSC
VIN =5.0V, VCE=0V, VFB= 0.88V
1.0
μA
②
⑪
When connected to external components,
V
Oscillation Frequency
2550
170
3000
220
3450
270
kHz
IN =3.2V, VCE=1.0V, IOUT=100mA
When connected to external components,
VIN =3.2V, VCE = VIN , IOUT=1mA
PFM Switching Current (*12)
IPFM
mA
⑫
PFM Duty Limit (*12)
Maximum Duty Cycle
Minimum Duty Cycle
DTYLIMIT_PFM
MAXDTY
MINDTY
VCE= VIN = 2.2V, IOUT=1mA
VIN = VCE =5.0V, VFB = 0.72V
-
100
-
200
300
%
%
%
⑪
③
③
-
-
-
VIN = VCE =5.0V, VFB = 0.88V
0
When connected to external components,
Efficiency(*2)
EFFI
-
86
-
%
⑪
V
CE = VIN = 2.4V, IOUT = 100mA
Lx SW "H" ON Resistance 1
Lx SW "H" ON Resistance 2
Lx SW "L" ON Resistance 1
Lx SW "L" ON Resistance 2
Lx SW "H" Leakage Current (*5)
Current Limit (*10)
RLｘH
RLｘH
RLｘL
RLｘL
ILEAKH
ILIM
VIN = VCE = 5.0V, VFB = 0.72V,ILX = 100mA (*3)
VIN = VCE = 3.6V, VFB = 0.72V,ILX = 100mA (*3)
VIN = VCE = 5.0V (*4)
-
-
-
-
-
0.35
0.42
0.45
0.52
0.01
1050
0.55
0.67
0.65
0.77
1.0
Ω
Ω
④
④
-
-
⑨
Ω
VIN = VCE = 3.6V (*4)
Ω
VIN= VFB =5.0V, VCE =0V, LX=0V
VIN = VCE= 5.0V, VFB = 0.72V (*8)
μA
mA
900
1350
⑥
Output Voltage
Temperature Characteristics
IOUT =30mA
-40℃≦Topr≦85℃
△
VOUT/
-
±100
-
ppm/ ℃
⑪
③
③
(VOUT・△Topr)
VFB=0.72V, Applied voltage to VCE
,
CE "H" Voltage
CE "L" Voltage
VCEH
0.65
VSS
-
-
6.0
0.25
V
V
Voltage changes Lx to “H” level (*11)
V
FB=0.72V, Applied voltage to VCE,
VCEL
Voltage changes Lx to “L” level (*11)
When connected to external components,
OUT=1mA (*6), Voltage which oscillation
PWM "H" Level Voltage (*13)
PWM "H" Level Voltage (*13)
I
VPWMH
-
-
-
VIN - 1.0
V
V
⑪
⑪
frequency becomes 2550kHz≦fOSC≦3450kHz (*13)
When connected to external components,
VIN
0.25
-
I
OUT=1mA (*6), Voltage which oscillation
VPWML
-
frequency becomes fOSC＜2550kHz (*13)
VIN = VCE =5.0V, VFB = 0.72V
CE "H" Current
CE "L" Current
ICEH
ICEL
- 0.1
- 0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
VIN =5.0V, VCE = 0V, VFB = 0.72V
When connected to external components,
Soft Start Time
Latch Time
tSS
-
0.25
-
0.40
20
ms
ms
⑪
⑦
V
CE=0V→VIN , IOUT=1mA
VIN=VCE=5.0V, VFB=0.64
tLAT
1.0
Short Lx at 1Ω resistance (*7)
Short Protection
Threshold Voltage
VIN=VCE=5.0V, VFB voltage which Decrease
VSHORT
0.15
0.20
0.25
V
⑦
V
FB from 0.4V, Lx becomes “L” (*11)level within 1ms
CL Discharge
Inductance Value
RDCHG
L
VIN = 5.0V LX = 5.0V VCE = 0V, VFB = open
Test frequency=1MHz
200
300
1.5
450
Ω
⑧
-
-
-
-
-
μH
mA
Allowed Inductor Current
IDC
Δ
T=40℃
1000
-
Test conditions: VOUT=1.2V when the external components are connected. Unless otherwise stated, VIN=5.0V, applied voltage sequence is VFB→VIN→VCE
NOTE:
*1: Including hysteresis operating voltage range.
*2: EFFI = { ( output voltage×output current ) / ( input voltage×input current) }×100
*3: ON resistance (Ω)= (VIN - Lx pin measurement voltage) / 100mA
*4: Design value
*5: When temperature is high, a current of approximately 10μA (maximum) may leak.
*6:The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the
operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus
0.3V, and to the PWM mode when the CE/MODE pin voltage is equal to or lower than VIN minus 1.0V and equal to or greater than VCEH.
*7:Time until it short-circuits VFB with GND via 1Ωof resistor from an operational state and is set to Lx=0V from current limit pulse generating.
*8: When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
*9: When the difference between the input and the output is small, some cycles may be skipped completely before current maximizes.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
*10: Current limit denotes the level of detection at peak of coil current.
*11: “H”=VIN~VIN-1.2V, “L”=+0.1V~-0.1V
*12: IPFM and DTYLIMIT_PFM are defined only for the XCL206 and XCL207 series which have PFM control function. (Not for the XCL 205 series)
*13: VPWMH and VPWML are defined only for the XCL207 series. (They are not used in the XCL205/and XCL206 series)
8/27
XCL205/XCL206/XCL207
Series
■ELECTRICAL CHARACTERISTICS (Continued)
●PFM Switching Current
●Output Voltage
IPFM(mA)
NOMINAL
OUTPUT
VOUT(V)
<E-2>
TYP
NOMINAL OUTPUT
VOLTAGE
<E-4>
MIN
190
<E-5>
TYP
260
<E-6>
MAX
350
<E-1>
<E-3>
MAX
VOLTAGE
VOUT(T)
MIN
V
OUT(T)≦1.2Ｖ
1.2V＜VOUT(T)≦1.75Ｖ
1.8V≦VOUT(T)
180
240
300
1.00
1.20
1.40
1.50
1.75
1.80
1.90
2.50
2.80
2.85
3.00
3.30
0.980
1.176
1.372
1.470
1.715
1.764
1.862
2.450
2.744
2.793
2.940
3.234
1.000
1.200
1.400
1.500
1.750
1.800
1.900
2.500
2.800
2.850
3.000
3.300
1.020
1.224
1.428
1.530
1.785
1.836
1.938
2.550
2.856
2.907
3.060
3.366
170
220
270
●Efficiency
●Short Protection Threshold Voltage
Efficiency (%)
NOMINAL
OUTPUT
VOLTAGE
VOUT(T)
VSHORT(V)
NOMINAL
XCL205/206/207
OUTPUT
XCL205/206/207A,B,C
XCL205/206/207G
<E-7>
3.0MHz
79
VOLTAGE
<E-8>
MIN
<E-9>
TYP
<E-10>
<E-8>
<E-9>
TYP
<E-10>
MAX
VOUT(T)
MAX
MIN
1.00
1.20
1.40
1.50
1.75
1.80
1.90
2.50
2.80
2.85
3.00
1.00
1.20
1.40
1.50
1.75
1.80
1.90
2.50
2.80
2.85
3.00
3.30
0.375
0.450
0.525
0.563
0.656
0.675
0.713
0.938
1.050
1.069
1.125
1.238
0.500
0.600
0.700
0.750
0.875
0.900
0.950
1.250
1.400
1.425
1.500
1.650
0.625
0.750
0.875
0.938
1.094
1.125
1.188
1.563
1.750
1.781
1.875
2.063
0.188
0.225
0.263
0.282
0.328
0.338
0.357
0.469
0.525
0.535
0.563
0.619
0.250
0.300
0.350
0.375
0.438
0.450
0.475
0.625
0.700
0.713
0.750
0.825
0.313
0.375
0.438
0.469
0.547
0.563
0.594
0.782
0.875
0.891
0.938
1.032
82
83
84
85
86
3.30
●Soft Start Time (XCL20xB, XCL20xG)
tSS(ms)
NOMINAL OUTPUT
<E-11>
<E-12>
MAX
0.4
VOLTAGE
TYP
0.8V≦VOUT(T)≦1.75Ｖ
1.8V≦VOUT(T)≦4.0Ｖ
0.25
0.32
0.5
9/27
XCL205/XCL206/XCL207 Series
■TYPICAL APPLICATION CIRCUIT
●XCL205/XCL206/XCL207 Series A/B/C/G Types
●External Components
L1
CIN : 10V/4.7μF (Ceramic)
V
VIN
CL : 6.3V/10μF (Ceramic)
C
LX
VIN
NOTE
CIN
The Inductor can be used only for this DC/DC converter.
Please do not use this inductor for the other reasons.
Please use B, X5R, and X7R grades in temperature characteristics
for CIN and CL capacitors.
VSS
VSS
VOUT CL
VOUT
CE/MODE
L2
These grade ceramic capacitors minimize capacitance-loss as a
function of voltage stress.
●XCL205/XCL206/XCL207 Series F Type
● External Components
CIN : 10V/4.7μF(Ceramic)
CL : 6.3V/10μF(Ceramic)
7
R1 : 300kΩ
L1
1 Lx
6
R2 : 240kΩ
VIN
Vss 5
CE/MODE
CIN
CFB : 150pF
Vss
2
3
NOTE
R2
R1
CL
The Inductor can be used only for this DC/DC converter.
Please do not use this inductor for the other reasons.
Please use B, X5R, and X7R grad
es in temperature characteristics for CIN and CL capacitors.
These grade ceramic capacitors minimize capacitance-loss
as a function of voltage stress.
4
FB
L2
8
CFB
VOUT
<XCL205/XCL206/XCL207 F type output voltage setting>
The output voltage can be set by adding external dividing resistors. The output voltage is determined by R1 and R2 in the equation below.
The sum of R1 and R2 is normally kept 1Mꢀor less. The output voltage range can be set from 0.9V to 6.0V based on the 0.8V ±2.0%
reference voltage source.
Note that when the input voltage (VIN) is less than or equal to the set output voltage, an output voltage (VOUT) higher than the input
voltage (VIN) cannot be output.
VOUT=0.8×(R1+R2)/R2
Adjust the value of the phase compensation speedup capacitor CFB so that fzfb=1/(2×π×CFB×R1) is 10kHz or less. It is
optimum to adjust to a value from 1kHz to 20kHbased on the components used and the board layout.
[Calculation example]
●VOUT setting example
When R1=470kꢀ, R2=150kꢀ,
VOUT=0.8×(470k+150k)/150k=3.3V
VOUT(V)
0.9
R1(kꢀ)
100
R2(kꢀ)
820
300
150
240
240
120
150
30
CFB(pF)
150
1.2
150
100
1.5
130
220
1.8
300
150
2.5
510
100
3.0
330
150
3.3
470
100
4.0
120
470
10/27
XCL205/XCL206/XCL207
Series
■OPERATIONAL DESCRIPTION
The XCL205/XCL/206/XCL207 series consists of a reference voltage source, ramp wave circuit, error amplifier, PWM
comparator, phase compensation circuit, output voltage adjustment resistors, P-channel MOSFET driver transistor, N-channel
MOSFET switching transistor for the synchronous switch, current limiter circuit, UVLO circuit with control IC, and an inductor.
(See the block diagram above.) Using the error amplifier, the voltage of the internal voltage reference source is compared with
the feedback voltage from the VOUT pin through split resistors, R1 and R2. Phase compensation is performed on the resulting
error amplifier output, to input a signal to the PWM comparator to determine the turn-on time during PWM operation. The PWM
comparator compares, in terms of voltage level, the signal from the error amplifier with the ramp wave from the ramp wave circuit,
and delivers the resulting output to the buffer driver circuit to cause the Lx pin to output a switching duty cycle. This process is
continuously performed to ensure stable output voltage. The current feedback circuit monitors the P-channel MOS driver
transistor current for each switching operation, and modulates the error amplifier output signal to provide multiple feedback
signals. This enables a stable feedback loop even when a low ESR capacitor such as a ceramic capacitor is used ensuring
stable output voltage.
<Reference Voltage Source>
The reference voltage source provides the reference voltage to ensure stable output voltage of the DC/DC converter.
<Ramp Wave Circuit>
The ramp wave circuit determines switching frequency. The frequency is fixed internally 3.0MHz. Clock pulses generated in
this circuit are used to produce ramp waveforms needed for PWM operation, and to synchronize all the internal circuits.
<Error Amplifier>
The error amplifier is designed to monitor output voltage. The amplifier compares the reference voltage with the feedback
voltage divided by the internal split resistors, R1 and R2. When a feed back voltage is lower than the reference voltage, the
output voltage of the error amplifier is increased. The gain and frequency characteristics of the error amplifier output are fixed
internally to deliver an optimized signal to the mixer.
<Current Limit>
The current limiter circuit of the XCL205/XCL206/XCL207 series monitors the current flowing through the P-channel MOS driver
transistor connected to the Lx pin, and features a combination of the current limit mode and the operation suspension mode.
① When the driver current is greater than a specific level, the current limit function operates to turn off the pulses from the Lx pin
at any given timing.
② When the driver transistor is turned off, the limiter circuit is then released from the current limit detection state.
③ At the next pulse, the driver transistor is turned on. However, the transistor is immediately turned off in the case of an over
current state.
④ When the over current state is eliminated, the IC resumes its normal operation.
The IC waits for the over current state to end by repeating the steps ① through ③. If an over current state continues for a few
milliseconds and the above three steps are repeatedly performed, the IC performs the function of latching the OFF state of the
driver transistor, and goes into operation suspension state. Once the IC is in suspension state, operations can be resumed by
either turning the IC off via the CE/MODE pin, or by restoring power to the VIN pin. The suspension state does not mean a
complete shutdown, but a state in which pulse output is suspended; therefore, the internal circuitry remains in operation. The
current limit of the XCL205/XCL206/XCL207 series can be set at 1050mA at typical. Depending on the state of the PC Board,
latch time may become longer and latch operation may not work. In order to avoid the effect of noise, an input capacitor is
placed as close to the IC as possible.
Limit > # ms
Limit < # ms
Current Limit LEVEL
0mA
ILx
VOUT
Vss
Lx
VCE
Restart
IN
V
11/27
XCL205/XCL206/XCL207 Series
■OPERATIONAL DESCRIPTION (Continued)
<Short-Circuit Protection>
The short-circuit protection circuit monitors the internal R1 and R2 divider voltage from the VOUT pin (refer to FB point in the
block diagram shown in the previous page). In case where output is accidentally shorted to the Ground and when the FB
point voltage decreases less than half of the reference voltage (Vref) and a current more than the ILIM flows to the driver
transistor, the short-circuit protection quickly operates to turn off and to latch the driver transistor. In the latch state, the
operation can be resumed by either turning the IC off and on via the CE/MODE pin, or by restoring power supply to the VIN
pin.
When sharp load transient happens, a voltage drop at the VOUT is propagated to the FB point through CFB, as a result, short
circuit protection may operate in the voltage higher than 1/2 VOUT voltage.
<UVLO Circuit>
When the VIN pin voltage becomes 1.4V or lower, the P-channel output driver transistor is forced OFF to prevent false pulse
output caused by unstable operation of the internal circuitry. When the VIN pin voltage becomes 1.8V or higher, switching
operation takes place. By releasing the UVLO function, the IC performs the soft start function to initiate output startup operation.
The soft start function operates even when the VIN pin voltage falls momentarily below the UVLO operating voltage. The UVLO
circuit does not cause a complete shutdown of the IC, but causes pulse output to be suspended; therefore, the internal circuitry
remains in operation.
<PFM Switch Current>
In PFM control operation, until coil current reaches to a specified level (IPFM), the IC keeps the P-ch MOSFET on. In this case,
on-time (tON) that the P-ch MOSFET is kept on can be given by the following formula.
t
ON = L×IPFM / (VIN－VOUT) →IPFM①
<PFM Duty Limit>
In the PFM control operation, the PFM Duty Limit (DTYLIMIT_PFM) is set to 200% (TYP.). Therefore, under the condition that the
duty increases (e.g. the condition that the step-down ratio is small), it’s possible for P-ch MOSFET to be turned off even when coil
current doesn’t reach to IPFM. →IPFM②
Maximum IPFM Limit
tON
Lx
ILx
Lx
ILx
fOSC
IPFM
0mA
IPFM
0mA
IPFM①
IPFM②
12/27
XCL205/XCL206/XCL207
Series
■OPERATIONAL DESCRIPTION (Continued)
＜CL High Speed Discharge＞
The XCL205B(C,G,F)/ XCL206B(C,G,F)/ XCL207B(C,G,F) series can quickly discharge the electric charge at the output capacitor
(CL) when a low signal to the CE pin which enables a whole IC circuit put into OFF state, is inputted via the N-channel transistor
located between the LX pin and the VSS pin. When the IC is disabled, electric charge at the output capacitor (CL) is quickly
discharged so that it may avoid application malfunction. Discharge time of the output capacitor (CL) is set by the CL
auto-discharge resistance (R) and the output capacitor (CL). By setting time constant of a CL auto-discharge resistance value [R]
and an output capacitor value (CL) as τ(τ=C x R), discharge time of the output voltage after discharge via the N channel
transistor is calculated by the following formula.
τ
V = VOUT(T) x e –t/ or t=τln (VOUT(T) / V)
V : Output voltage after discharge
VOUT(T) : Output voltage
t: Discharge time,
τ: C x R
C= Capacitance of Output capacitor (CL)
R= CL auto-discharge resistance
Output Voltage Discharge Characteristics
RDCHG=300Ω(TYP.)
100
80
60
40
20
0
CL=10uF
CL=20uF
CL=50uF
0
20
40
60
80
100
Discharge Time ｔ(ms)
13/27
XCL205/XCL206/XCL207 Series
■OPERATIONAL DESCRIPTION (Continued)
<CE/MODE Pin Function>
The operation of the XCL205/XCL206/ XCL207 series will enter into the shut down mode when a low level signal is input to the
CE/MODE pin. During the shutdown mode, the current consumption of the IC becomes 0μA (TYP.), with a state of high
impedance at the Lx pin and VOUT pin. The IC starts its operation by inputting a high level signal to the CE/MODE pin. The
input to the CE/MODE pin is a CMOS input and the sink current is 0μA (TYP.).
●XCL205/XCL206 series - Examples of how to use CE/MODE pin
(A)
V IN
V IN
VDD
V DD
SELECTED
STATUS
SW_CE
SW_CE
ON
Stand-by
R1
CE/MODE
CE/MODE
OFF
Operation
(B)
SW_CE
SELECTED
STATUS
R2
SW_CE
ON
Operation
Stand-by
< IC inside >
< IC inside >
OFF
（A）
（B）
●XCL207 series - Examples of how to use CE/MODE pin
(A)
VIN
V IN
V DD
VDD
SELECTED
STATUS
SW_CE
SW_PWM/PFM
RM1
RM2
SW_PWM/PFM
SW_CE
CE/MODE
PWM/PFM
Automatic
ON
*
RM1
CE/MODE
Switching Control
PWM Control
Stand-by
OFF
OFF
ON
RM2
SW_CE
SW_PWM/PFM
OFF
< IC inside >
< IC inside >
(B)
（A）
（B）
SELECTED
STATUS
SW_CE
SW_PWM/PFM
Intermediate voltage can be generated by RM1 and RM2. Please set the value
of each R1, R2, RM1, RM2 from
few hundreds kΩ to few hundreds MΩ. For switches, CPU open-drain I/O
port and transistor can be used.
ON
*
Stand-by
PWM Control
PWM/PFM
OFF
ON
OFF
OFF
Automatic
Switching Control
14/27
XCL205/XCL206/XCL207
Series
■OPERATIONAL DESCRIPTION (Continued)
<Soft Start>
The XCL205/XCL206/XCL207 series (A, C type) provide 0.9ms (TYP). The XCL205/XCL206/XCL207 series (B, G, F type)
provide 0.32ms (TYP) however, when VOUT is less than 1.8V, provide 0.25ms (TYP.). Soft start time is defined as the time to
reach 90% of the output nominal voltage when the CE pin is turned on.
tSS
VCEH
0V
90% of setting voltage
VOUT
0V
■FUNCTION CHART
CE/MODE
VOLTAGE
LEVEL
OPERATIONAL STATES
XCL205
XCL206
XCL207
Synchronous
PWM Fixed
Control
Synchronous
PWM/PFM
Synchronous
PWM/PFM
H Level (*1)
Automatic Switching
Automatic Switching
Synchronous
M Level (*2)
L Level (*2)
━
━
PWM Fixed Control
Stand-by
Stand-by
Stand-by
Note on CE/MODE pin voltage level range
(*1) H level: 0.65V < H level < 6V (for XCL205/XCL206)
H level: VIN – 0.25V < H level < VIN (for XCL207)
(*2) M level: 0.65V < M level < VIN - 1.0V (for XCL207)
(*3) L level: 0V < L level < 0.25V
15/27
XCL205/XCL206/XCL207 Series
■NOTE ON USE
1. The XCL205/XCL206/XCL207 series is designed for use with ceramic output capacitors. If, however, the potential
difference is too large between the input voltage and the output voltage, a ceramic capacitor may fail to absorb the resulting
high switching energy and oscillation could occur on the output. If the input-output potential difference is large, connect an
electrolytic capacitor in parallel to compensate for insufficient capacitance.
2. Spike noise and ripple voltage arise in a switching regulator as with a DC/DC converter. These are greatly influenced by
external component selection, such as the coil inductance, capacitance values, and board layout of external components.
Once the design has been completed, verification with actual components should be done.
3. Depending on the input-output voltage differential, or load current, some pulses may be skipped, and the ripple voltage may
increase.
4. When the difference between VIN and VOUT is large in PWM control, very narrow pulses will be outputted, and there is the
possibility that some cycles may be skipped completely.
5. When the difference between VIN and VOUT is small, and the load current is heavy, very wide pulses will be outputted and
there is the possibility that some cycles may be skipped completely.
6. With the IC, the peak current of the coil is controlled by the current limit circuit. Since the peak current increases when
dropout voltage or load current is high, current limit starts operation, and this can lead to instability. When peak current
becomes high, please adjust the coil inductance value and fully check the circuit operation. In addition, please calculate
the peak current according to the following formula:
Ipk = (VIN - VOUT) x OnDuty / (2 x L x fOSC) + IOUT
L: Coil Inductance Value
fOSC: Oscillation Frequency
7. When the peak current which exceeds limit current flows within the specified time, the built-in P-ch driver transistor turns off.
During the time until it detects limit current and before the built-in transistor can be turned off, the current for limit current
flows; therefore, care must be taken when selecting the rating for the external components such as a coil.
8. When VIN is less than 2.4V, limit current may not be reached because voltage falls caused by ON resistance.
9. Depending on the state of the PC Board, latch time may become longer and latch operation may not work. In order to avoid
the effect of noise, the board should be laid out so that input capacitors are placed as close to the IC as possible.
10. Use of the IC at voltages below the recommended voltage range may lead to instability.
11. This IC should be used within the stated absolute maximum ratings in order to prevent damage to the device.
12. When the IC is used in high temperature, output voltage may increase up to input voltage level at no load because of the
leak current of the driver transistor.
13. The current limit is set to 1350mA (MAX.) at typical. However, the current of 1350mA or more may flow. In case that the
current limit functions while the VOUT pin is shorted to the GND pin, when P-ch MOSFET is ON, the potential difference for
input voltage will occur at both ends of a coil. For this, the time rate of coil current becomes large. By contrast, when
N-ch MOSFET is ON, there is almost no potential difference at both ends of the coil since the VOUT pin is shorted to the
GND pin. Consequently, the time rate of coil current becomes quite small. According to the repetition of this operation,
and the delay time of the circuit, coil current will be converged on a certain current value, exceeding the amount of current,
which is supposed to be limited originally. Even in this case, however, after the over current state continues for several
ms, the circuit will be latched. A coil should be used within the stated absolute maximum rating in order to prevent
damage to the device.
①Current flows into P-ch MOSFET to reach the current limit (ILIM).
②The current of ILIM or more flows since the delay time of the circuit occurs during from the detection of the current limit to
OFF of P-ch MOSFET.
③Because of no potential difference at both ends of the coil, the time rate of coil current becomes quite small.
④Lx oscillates very narrow pulses by the current limit for several ms.
⑤The circuit is latched, stopping its operation.
②
①
③
④
⑤
Limit > # ms
Delay
Lx
ILIM
ILx
16/27
XCL205/XCL206/XCL207
Series
■NOTE ON USE (Continued)
14. In order to stabilize VIN voltage level and oscillation frequency, we recommend that a by-pass capacitor (CIN) be
connected as close as possible to the VIN & VSS pins.
15. High step-down ratio and very light load may lead an intermittent oscillation when PWM mode.
16. Please use within the power dissipation range below. Please also note that the power dissipation may changed by test
conditions, the power dissipation figure shown is PCB mounted.
Pd vs Operating Temperature
Package Body Temperature vs Operating Temperature
the power loss of micro DC/DC according to the following formula:
power loss = VOUT×IOUT×((100/EFFI) – 1) (W)
VOUT：Output Voltage (V)
I
OUT ：Output Current (A)
EFFI：Conversion Efficiency (%)
40.0
Measurement Condition (Reference data)
Condition: Mount on a board
28.9
Natural convection
Ambient:
Soldering: Lead (Pb) free
Board: Dimensions 40 x 40 mm (1600 mm2 in one side)
Copper (Cu) traces occupy 50% of the board area
In top and back faces
Package heat-sink is tied to the copper traces
Material: Glass Epoxy (FR-4)
Thickness: 1.6mm
Through-hole: 4 x 0.8 Diameter
.
.
2.54
1.4
Evaluation Board (Unit: mm)
17/27
XCL205/XCL206/XCL207 Series
■NOTE ON USE (Continued)
17. Instructions of pattern layouts
(1) In order to stabilize VIN voltage level, we recommend that a by-pass capacitor (CIN) be connected as close as possible to the
VIN (No.6) & VSS (No.5) pins.
(2) Please mount each external component as close to the IC as possible.
(3) Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit
impedance.
(4) Make sure that the PCB GND traces are as thick as possible, as variations in ground potential caused by high ground currents
at the time of switching may result in instability of the IC.
(5) This series’ internal driver transistors bring on heat because of the output current and ON resistance of driver transistors.
(6) Please connect Lx (No.1) pin and L1 (No.7) pin by wiring on the PCB.
(7) Please connect VOUT (No.3) pin and L2 (No.8) pin by wiring on the PCB.
・XCL205/206/207 A/B/C/G types
<FRONT>
<BACK (Flip Horizontal)>
・XCL205/206/207 F type
<FRONT>
<BACK (Flip Horizontal)>
18/27
XCL205/XCL206/XCL207
Series
■TEST CIRCUITS
Wave Form Measure Point
< Circuit No.1 >
< Circuit No.2 >
L1
L1
Lx
VIN
Lx
VIN
A
A
CE/
MODE
CE/
MODE
1μF
VOUT
L2
VOUT
V
CIN
CL
VSS
VSS
VSS
VSS
VSS
L2
※ꢀExternal Components
CIN 4.7μF(ceramic)
CL : 10μF(ceramic)
:
< Circuit No.3 >
< Circuit No.4 >
Wave Form Measure Point
L1
Lx
L1
Lx
VIN
VIN
CE/
MODE
CE/
MODE
Rpulldown
200Ω
1μF
100mA
VOUT
L2
VOUT
L2
V
1μF
VSS
VSS
VSS
VSS
ON resistance = (VIN-VLx)/100mA
< Circuit No.5 >
< Circuit No.6 >
ILeakH
Wave Form Measure Point
L1
Lx
L1
Lx
VIN
VIN
A
1μF
ICEH
ILeakL
CE/
MODE
CE/
MODE
1μF
ILIM
VOUT
L2
VOUT
L2
V
A
ICEL
< Circuit No.7 >
< Circuit No.8 >
ILx
Wave Form Measure Point
L1
Lx
L1
Lx
VIN
VIN
A
Ilat
CE/
MODE
CE/
MODE
1μF
VOUT
L2
VOUT
L2
1uF
Rpulldown
1Ω
FRONT (PCB mounted)
Wave Form Measure Point
L
< Circuit No.9 >
< Circuit No.10 >
L1
L1
Lx
VIN
Lx
VIN
A
A
CE/
MODE
CE/
MODE
VOUT
L2
VOUT
L2
V
CIN
CIN
CL
VSS
*External Components
L
CIN : 4.7μF(ceramic)
: 1.5μH
CL : 10μF(ceramic)
19/27
XCL205/XCL206/XCL207 Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Efficiency vs. Output Current
XCL205A183AR/XCL206A183AR/XCL207A183AR
XCL206/XCL207(PWM/PFM)
(2) Output Voltage vs. Output Current
XCL205A183AR/XCL206A183AR/XCL207A183AR
100
80
60
40
20
0
2.1
2.0
1.9
1.8
1.7
1.6
1.5
XCL/206/XCL207
(PWM/PFM)
VIN 4.2V,3.6V,2.4V
＝
2.4V
3.6V
ꢀꢀꢀꢀ
VIN= 4.2V
XCL205/XCL207
(PWM)
XCL205/XCL207
(PWM)
0.1
1
10
100
1000
0.1
1
10
100
1000
Output Current:IOUT (mA)
Output Current:IOUT (mA)
(3) Ripple Voltage vs. Output Current
XCL205A183AR/XCL206A183AR/XCL207A183AR
(4) Oscillation Frequency vs. Ambient Temperature
XCL205A183AR/XCL206A183AR/XCL207A183AR
100
80
60
40
20
0
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
VIN=3.6V
XCL206/XCL207
(PWM/PFM)
XCL205/XCL207
(PWM)
VIN 4.2V,3.6V,2.4V
＝
VIN 4.2V
＝
3.6V
2.4V
0.1
1
10
100
1000
-50
-25
0
25
50
75
100
Output Current:IOUT (mA)
Ambient Temperature: Ta (
)
℃
(5) Supply Current vs. Ambient Temperature
XCL206A183AR/XCL207A183AR
(6) Output Voltage vs. Ambient Temperature
XCL205A183AR/XCL206A183AR/XCL207A183AR
40
35
30
25
20
15
10
5
2.1
2.0
1.9
1.8
1.7
1.6
1.5
VIN=6.0V
4.0V
VIN=3.6V
2.0V
0
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta (
)
Ambient Temperature: Ta (
)
℃
℃
20/27
XCL205/XCL206/XCL207
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) UVLO Voltage vs. Ambient Temperature
(8) CE "H" Voltage vs. Ambient Temperature
XCL205A183AR/XCL206A183AR/XCL207A183AR
XCL205A183AR/XCL206A183AR/XCL207A183AR
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.8
1.5
1.2
0.9
0.6
0.3
0.0
CE=VIN
VIN=5.0V
3.6V
2.4V
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
100
6
Ambient Temperature: Ta (
)
Ambient Temperature: Ta (
)
℃
℃
(9) CE "L" Voltage vs. Ambient Temperature
(10) Soft Start Time vs. Ambient Temperature
XCL205A183AR/XCL206A183AR/XCL207A183AR
XCL205A183AR/XCL206A183AR/XCL207A183AR
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
5.0
4.0
3.0
2.0
1.0
0.0
VIN=5.0V
3.6V
VIN=3.6V
2.4V
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
Ambient Temperature: Ta (
)
℃
Ambient Temperature: Ta (
)
℃
(11) "Pch / Nch" Driver on Resistance vs. Input Voltage
(12) Rise Wave Form
XCL205B333AR/XCL206B333AR/XCL207B333AR
XCL205A183AR/XCL206A183AR/XCL207A183AR
1.0
0.9
0.8
XCL206B333
VIN=5.0V
IOUT=1.0mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
Nch on Resistance
2ch
VOUT
Pch on Resistance
1ch
CE:0.0V⇒1.0V
1ch:1V/div
2ch:1V/div
0
1
2
3
4
5
Time: 100μs /div
Input Voltage : VIN (V)
21/27
XCL205/XCL206/XCL207 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(13) Soft-Start Time vs. Ambient Temperature
(14) CL Discharge Resistance vs. Ambient Temperature
XCL205B333AR/XCL206B333AR/XCL207B333AR
XCL205B333AR/XCL206B333AR/XCL207B333AR
500
400
300
200
100
0
600
XCL207B333
500
VIN=5.0V
IOUT=1.0mA
2.0V
VIN=6.0V
400
300
200
4.0V
100
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta (
)
℃
Ambient Temperature: Ta (
)
℃
(15) Load Transient Response 1
MODE：PWM/PFM Automatic Switching Control
XCL206A183AR/XCL207A183AR
XCL206A183AR/XCL207A183AR
VIN=3.6V,VOUT=1.8V
VIN=3.6V,VOUT=1.8V
IOUT=1mA ⇒ 300mA
IOUT=1mA ⇒ 100mA
1ch
1ch
VOUT
VOUT
2ch
2ch
1ch:100mA/div 2ch:50mV/div
1ch:100mA/div 2ch:50mV/div
Time: 100μs /div
Time: 100μs /div
XCL206A183AR/XCL207A183AR
XCL206A183AR/XCL207A183AR
VIN=3.6V,VOUT=1.8V
VIN=3.6V,VOUT=1.8V
IOUT=300mA ⇒ 1mA
IOUT=100mA ⇒ 1mA
1ch
2ch
1ch
2ch
VOUT
VOUT
1ch:100mA/div 2ch:50mV/div
1ch:100mA/div 2ch:50mV/div
Time: 100μs /div
Time: 100μs /div
22/27
XCL205/XCL206/XCL207
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(16) Load Transient Response 2
MODE：PWM Control
XCL205A183AR/XCL207A183AR
XCL205A183AR/XCL207A183AR
VIN=3.6V,VOUT=1.8V
VIN=3.6V,VOUT=1.8V
IOUT=1mA ⇒ 100mA
IOUT=1mA ⇒ 300mA
1ch
2ch
1ch
2ch
1ch:100mA/div 2ch:50mV/div
1ch:100mA/div 2ch:50mV/div
Time: 100μs /div
Time: 100μs /div
XCL205A183AR/XCL207A183AR
XCL205A183AR/XCL207A183AR
VIN=3.6V,VOUT=1.8V
VIN=3.6V,VOUT=1.8V
1ch
IOUT=300mA ⇒ 1mA
IOUT=100mA ⇒ 1mA
1ch
2ch
2ch
1ch:100mA/div 2ch:50mV/div
1ch:100mA/div 2ch:50mV/div
Time: 100μs /div
Time: 100μs /div
23/27
XCL205/XCL206/XCL207 Series
■PACKAGING INFORMATION
●CL-2025 (unit: mm)
■External Lead
●Reference Pattern Layout (unit:mm)
●Reference Metal Mask Design (unit:mm)
24/27
XCL205/XCL206/XCL207
Series
■PACKAGING INFORMATION
●CL-2025-02 (unit: mm)
2.5±0.1
(0.32 MAX)
(0.32 MAX)
1PIN INDENT
0.3±0.05
1
2
3
7
■External Lead
8
Au
Sn
6
5
4
(0.22)
(0.55)
(0.22)
(0.5)
1.5±0.05
(0.5)
●Reference Pattern Layout (unit:mm)
●Reference Metal Mask Design (unit:mm)
* Implementation of CL-202-02 is recommendd within accuracy 0.05mm.
25/27
XCL205/XCL206/XCL207 Series
■MARKING RULE
●CL-2025/CL-2025-02
① represents products series
MARK
品名表記例
XCL205A*****-G
XCL205F*****-G
XCL205B*****-G
XCL205G*****-G
XCL205C*****-G
XCL206A*****-G
XCL206F*****-G
XCL206B*****-G
XCL206G*****-G
XCL206C*****-G
XCL207A*****-G
XCL207F*****-G
XCL207B*****-G
XCL207G*****-G
XCL207C*****-G
4
1
2
3
6
5
4
C
K
5
D
L
6
E
M
② represents type of DC/DC converters
MARK
OUTPUT VOLTAGE
XCL20*A/B/C*****
XCL20*G/F*****
(V)
0.x
1.x
2.x
3.x
4.x
F
H
K
L
U
V
X
Y
Z
M
③ represents the decimal part of output voltage
OUTPUT VOLTAGE (V)
MARK
PRODUCT SERIES
XCL20***0***-G
XCL20***A***-G
XCL20***1***-G
XCL20***B***-G
XCL20***2***-G
XCL20***C***-G
XCL20***3***-G
XCL20***D***-G
XCL20***4***-G
XCL20***E***-G
XCL20***5***-G
XCL20***F***-G
XCL20***6***-G
XCL20***H***-G
XCL20***7***-G
XCL20***K***-G
XCL20***8***-G
XCL20***L***-G
XCL20***9***-G
XCL20***M***-G
X.0
X.05
X.1
0
A
1
X.15
X.2
B
2
X.25
X.3
C
3
X.35
X.4
D
4
X.45
X.5
E
5
X.55
X.6
F
6
X.65
X.7
H
7
X.75
X.8
K
8
X.85
X.9
L
9
X.95
M
④,⑤ represents production lot number
01～09、0A～0Z、11～9Z、A1～A9、AA～AZ、B1～ZZ in order.
(G, I, J, O, Q, W excluded) Note: No character inversion used.
26/27
XCL205/XCL206/XCL207
Series
1. The product and product specifications contained herein are subject to change without notice to
improve performance characteristics. Consult us, or our representatives before use, to confirm that
the information in this datasheet is up to date.
2. The information in this datasheet is intended to illustrate the operation and characteristics of our
products. We neither make warranties or representations with respect to the accuracy or
completeness of the information contained in this datasheet nor grant any license to any intellectual
property rights of ours or any third party concerning with the information in this datasheet.
3. Applicable export control laws and regulations should be complied and the procedures required by
such laws and regulations should also be followed, when the product or any information contained in
this datasheet is exported.
4. The product is neither intended nor warranted for use in equipment of systems which require
extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause loss
of human life, bodily injury, serious property damage including but not limited to devices or equipment
used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile industry and
other transportation industry and 5) safety devices and safety equipment to control combustions and
explosions. Do not use the product for the above use unless agreed by us in writing in advance.
5. Although we make continuous efforts to improve the quality and reliability of our products;
nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent
personal injury and/or property damage resulting from such failure, customers are required to
incorporate adequate safety measures in their designs, such as system fail safes, redundancy and
fire prevention features.
6. Our products are not designed to be Radiation-resistant.
7. Please use the product listed in this datasheet within the specified ranges.
8. We assume no responsibility for damage or loss due to abnormal use.
9. All rights reserved. No part of this datasheet may be copied or reproduced unless agreed by Torex
Semiconductor Ltd in writing in advance.
TOREX SEMICONDUCTOR LTD.
27/27
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