XC9260A31CPR-G
更新时间:2024-09-18 12:28:02
品牌:TOREX
描述:COT Control, 1.5A Synchronous Step-Down DC/DC Converters
XC9260A31CPR-G 概述
COT Control, 1.5A Synchronous Step-Down DC/DC Converters COT控制, 1.5A同步降压型DC / DC转换器 开关式稳压器或控制器
XC9260A31CPR-G 规格参数
是否Rohs认证: | 符合 | 生命周期: | Active |
包装说明: | DFP, FL6,.1,60 | Reach Compliance Code: | compliant |
风险等级: | 5.77 | 模拟集成电路 - 其他类型: | SWITCHING REGULATOR |
控制模式: | VOLTAGE-MODE | JESD-30 代码: | R-PDFP-F6 |
JESD-609代码: | e3 | 湿度敏感等级: | 1 |
端子数量: | 6 | 最高工作温度: | 105 °C |
最低工作温度: | -40 °C | 最大输出电流: | 1.5 A |
封装主体材料: | PLASTIC/EPOXY | 封装代码: | DFP |
封装等效代码: | FL6,.1,60 | 封装形状: | RECTANGULAR |
封装形式: | FLATPACK | 认证状态: | Not Qualified |
子类别: | Switching Regulator or Controllers | 表面贴装: | YES |
最大切换频率: | 1200 kHz | 温度等级: | INDUSTRIAL |
端子面层: | Tin (Sn) | 端子形式: | FLAT |
端子节距: | 1.5 mm | 端子位置: | DUAL |
XC9260A31CPR-G 数据手册
通过下载XC9260A31CPR-G数据手册来全面了解它。这个PDF文档包含了所有必要的细节,如产品概述、功能特性、引脚定义、引脚排列图等信息。
PDF下载XC9260/XC9261Series
COT Control, 1.5A Synchronous Step-Down DC/DC Converters
ETR05042-001
☆GreenOperation-compatible
■GENERAL DESCRIPTION
The XC9260/XC9261 series is a group of synchronous-rectification type DC/DC converters with a built-in P-channel MOS driver
transistor and N-channel MOS switching transistor, designed to allow the use of ceramic capacitors. Output voltage is internally
set in a range from 0.8V to 3.6V (accuracy: ±2.0%) increments of 0.05V. The device provides a high efficiency, stable power
supply with an output current of 1.5A to be configured using only a coil and two capacitors connected externally. Oscillation
frequency is set to 1.2MHz or 3.0MHz can be selected for suiting to your particular application.
As for operation mode HiSAT-COT (*) control excellent in transient response, the XC9260 series is PWM control, the XC9261
series is automatic PWM/PFM switching control, allowing fast response, low ripple and high efficiency over the full range of loads
(from light load to heavy load).
During stand-by, all circuits are shutdown to reduce current consumption to as low as 1.0μA or less. As for the soft-start function
as fast as 0.3ms in typical for quick turn-on. With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS
driver transistor is forced OFF when input voltage becomes 2.00V or lower. The B types integrate CL High Speed discharge
function which enables the electric charge at the output capacitor CL to be discharged via the internal discharge.
Two types of package SOT-89-5, USP-6C are available.
(*) HiSAT-COT is an original Torex term for High Speed Transient Response.
■FEATURES
Input Voltage Range
Output Voltage Range
Quiescent Current
■APPLICATIONS
●Mobile phones
:
:
:
:
:
2.7V~5.5V
0.8V~3.6V (±2.0%)
25μA (fOSC=3.0MHz)
1.5A
●Bluetooth headsets
Output Current
●Smart phones, Personal digital assistance
●Portable game consoles
●Digital still cameras, Camcorders
●Codeless phones
Oscillation Frequency
1.2MHz, 3.0MHz
90%
Efficiency
:
(VIN=3.7V, VOUT=1.8V, IOUT=200mA)
HiSAT-COT Control
100% Duty Cycle
Control Methods
:
:
:
:
:
:
:
:
:
:
:
:
:
:
PWM Control (XC9260)
PWM/PFM Auto (XC9261)
Thermal Shutdown
Current Limit (Pendent character)
Short Circuit Protection (Type B)
Soft-Start
●Point-of-Load (POL)
Protection Circuits
Functions
UVLO
CL High Speed Discharge (Type B)
Ceramic Capacitor
- 40℃ ~ + 105℃
Capacitor
Operating Ambient Temperature
Packages
SOT-89-5, USP-6C
EU RoHS Compliant, Pb Free
Environmentally Friendly
■
TYPICAL APPLICATION CIRCUIT
■TYPICAL PERFORMANCE
CHARACTERISTICS
XC9260A18D / XC9261A18D
L = LQM2MPN1R0MGH(1.0 H)
μ
C =10 F(GRM155R61A106M) C =10 F(GRM155R61A106M)
μ
μ
IN
L
VOUT
1.5A
L
100
VIN
VIN
Lx
90
80
70
60
50
40
30
20
10
0
CE
CE
VOUT
XC9261
XC9260
VIN = 5.0V
VIN = 3.7V
PGND
AGND
CIN
CL
VIN = 5.0V
VIN = 3.7V
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
1/28
XC9260/XC9261Series
■ BLOCK DIAGRAM
1) XC9260/XC9261 Series Type A (SOT-89-5)
2) XC9260/XC9261 Series Type B (SOT-89-5)
(*) The XC9260 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.
The XC9261 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM
automatic switching” internally.
Diodes inside the circuit are an ESD protection diode and a parasitic diode.
2) XC9260/XC9261 Series Type B (USP-6C)
2) XC9260/XC9261 Series Type B (USP-6C)
(*) The XC9260 offers a fixed PWM control, a Control Logic of PWM/PFM Selector is fixed at “PWM” internally.
The XC9261 control scheme is a fixed PWM/PFM automatic switching, a Control Logic of PWM/PFM Selector is fixed at “PWM/PFM
automatic switching” internally.
Diodes inside the circuit are an ESD protection diode and a parasitic diode.
2/28
XC9260/XC9261
Series
■PRODUCT CLASSIFICATION
1) Ordering Information
XC9260①②③④⑤⑥-⑦ PWM Control
XC9261①②③④⑤⑥-⑦ PWM/PFM Automatic switching control
DESIGNATOR
ITEM
SYMBOL
DESCRIPTION
Refer to Selection Guide
A
B
①
Type
Output voltage options
e.g. 1.2V → ②=1, ③=2
1.25V → ②=1, ③=C
②③
④
Output Voltage
08~36
0.05V increments : 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
C
1.2MHz
Oscillation Frequency
Packages (Order Unit)
D
3.0MHz
PR-G
ER-G
SOT-89-5 (1,000/Reel)
USP-6C (3,000/Reel)
(*1)
⑤⑥-⑦
(*1) The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.
2) Selection Guide
SHORT PROTECTION
TYPE
OUTPUT VOLTAGE CL AUTO-DISCHARGE
UVLO
(LATCH)
A
B
Fixed
Fixed
No
No
Yes
Yes
Yes
Yes
TYPE
CHIP ENABLE
CURRENT LIMIT
SOFT-START TIME
THERMAL SHUTDOWN
A
B
Yes
Yes
Yes
Yes
Fixed
Fixed
Yes
Yes
3/28
XC9260/XC9261Series
■PIN CONFIGURATION
* The dissipation pad for the USP-6C package should be solder-plated in recommended mount pattern and metal masking so
as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected
to the GND (No. 1 and 2) pin.
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
SOT-89-5 USP-6C
1
2
3
4
5
-
5
-
Lx
VSS
Switching Output
Ground
3
4
6
2
1
VOUT
CE
Output Voltage Monitor
Chip Enable
VIN
Power Input
AGND
PGND
Analog Ground
Power Ground
-
■FUNCTION
CE PIN Function
PIN NAME
CE
SIGNAL
STATUS
L
Stand-by
Active
H
Please do not leave the CE pin open.
4/28
XC9260/XC9261
Series
■ABSOLUTE MAXIMUM RATINGS
Ta=25℃
PARAMETER
Input Voltage
SYMBOL
VIN
RATINGS
UNITS
-0.3~+6.2
V
V
Lx PIN Voltage
VLx
-0.3~VIN+0.3 or +6.2(*1)
Output Voltage
CE Input Voltage
Lx Current
VOUT
VCE
ILx
-0.3~VIN+0.3 or +4.0(*2)
-0.3~+6.2
V
V
-
500
mA
SOT-89-5
USP-6C
1300 (PCB mounted) (*3)
Power Dissipation
Pd
mW
120
1000 (PCB mounted) (*3)
-40~+105
Operating Ambient Temperature
Storage Temperature
Topr
Tstg
℃
℃
-55~+125
* All voltages are described based on the GND (AGND and PGND and VSS) pin.
(*1) The maximum value should be either VIN+0.3V or +6.2V in the lowest.
(*2) The maximum value should be either VIN+0.3V or +4.0V in the lowest.
(*3) This is a reference data taken by using the test board. Please refer to page 25 and 26 for details.
5/28
XC9260/XC9261Series
■ELECTRICAL CHARACTERISTICS
XC9260/XC9261 Series
Ta=25℃
PARAMETER
SYMBOL
VOUT
CONDITIONS
MIN.
TYP.
MAX.
UNITS CIRCUIT
When connected to external components,
Output Voltage
<E-1> <E-2> <E-3>
V
①
I
OUT=30mA
Operating Voltage Range
Maximum Output Current
VIN
-
2.7
-
-
5.5
-
V
①
①
When connected to external components (*1),
IOUTMAX
1500
mA
VIN =<C -1>
UVLO Voltage (*2)
VUVLO
VOUT=0.6V,Voltage which Lx pin holding “L” level(*6)
1.35
2.0
2.68
V
③
②
fOSC=1.2MHz
VOUT =VOUT(T) × 1.1V
-
-
-
-
-
15.0
25.0
250
400
0.0
25.0
40.0
450
825
1.0
Quiescent Current
(XC9261)
Iq
μA
fOSC=3.0MHz
fOSC=1.2MHz
VOUT =VOUT(T) × 1.1V
Quiescent Current
(XC9260)
Iq
μA
μA
ns
②
②
①
fOSC=3.0MHz
Stand-by Current
Minimum ON time
Thermal shutdown
ISTB
VCE=0.0V
When connected to external components,
VIN = <C-1>, IOUT = 1mA
tONmin
<E-5> <E-6> <E-7>
TTSD
THYS
RLXH
RLXL
-
-
-
-
-
150
30
-
℃
℃
Ω
①
①
④
④
Thermal shutdown
hysteresis
-
-
Lx SW ”H” ON Resistance
VOUT=0.6V, ILX=100mA (*3)
0.14
0.10
0.28
0.20
Lx SW ”L” ON
Resistance (*4)
VOUT=VOUT(T) V × 1.1, ILX=100mA (*3)
Ω
Lx SW ”H” Leakage Current
Lx SW ”L” Leakage Current
Current Limit (*5)
ILeakH
IleakL
ILIMH
VIN=5.5V, VCE=0V, VOUT=0V, VLX=0.0V
VIN=5.5V, VCE=0V, VOUT=0V, VLX=5.5V
VOUT=0.6V, ILx until Lx pin oscillates
-
-
0.0
0.0
3.0
1.0
30.0
4.5
μA
μA
A
⑤
⑤
⑥
2.5
Output Voltage
Temperature
∆VOUT
/
IOUT=30mA, -40℃≦Topr≦105℃
-
±100
-
ppm/℃
①
(VOUT・∆Topr)
Characteristics
VOUT=0.6V, Applied voltage to VCE
,
CE ”H” Voltage
CE ”L” Voltage
VCEH
1.40
-
-
VIN
V
V
③
③
Voltage changes Lx to “H” level (*6)
VOUT=0.6V, Applied voltage to VCE
Voltage changes Lx to “L” level (*6)
,
(*7)
VSS
VCEL
0.30
CE ”H” Current
CE ”L” Current
ICEH
ICEL
VIN=5.5V, VCE=5.5V, VOUT=0.0V
VIN=5.5V, VCE=0.0V, VOUT=0.0V
-0.1
-
-
0.1
0.1
μA
μA
⑤
⑤
-0.1
VCE=0.0V → 5.0V VOUT=VOUT(T)V × 0.9
After "H" is fed to CE, the time by when clocks are
generated at Lx pin.
Soft-start Time
tSS
0.10
0.30
0.50
ms
③
Short Protection
Threshold
Sweeping VOUT, VOUT voltage which Lx becomes “L”
level(*6)
VSHORT
RDCHG
0.17
50
0.27
210
0.37
300
V
③
⑦
Voltage (Type B)
CL Discharge (Type B)
VCE=0V, VOUT=4.0V
Ω
Unless otherwise stated, VIN=5V, VCE=5V, VOUT(T)=Nominal Value,
NOTE:
(*1) When the difference between the input and the output is small, 100% duty might come up and internal control circuits keep P-ch driver turning
on even though the output current is not so large.
If current is further pulled from this state, output voltage will decrease because of P-ch driver ON resistance.
(*2) Including UVLO detect voltage, hysteresis operating voltage range for UVLO release voltage.
(*3)
R
LXH
= (VIN - Lx pin measurement voltage) / 100mA, RLXL= Lx pin measurement voltage / 100mA
(*4) Design value for the XC9261 series.
(*5) Current limit denotes the level of detection at peak of coil current.
(*6) "H"=VIN ~ VIN - 1.2V, "L"=- 0.1V ~ + 0.1V
(*7) AGND in the case of USP-6C.
6/28
XC9260/XC9261
Series
■ELECTRICAL CHARACTERISTICS (Continued)
SPEC Table
tONmin
NOMINAL
VOUT
OUTPUT
fOSC = 1.2MHz
<E-6>
fOSC = 3.0MHz
<E-6>
VOLTAGE
<E-1> <E-2> <E-3> <C-1> <E-5>
<E-7>
MAX.
<E-5>
MIN.
<E-7>
MAX.
VOUT(T)
MIN.
TYP.
MAX.
VIN
MIN.
TYP.
TYP.
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
1.45
1.50
1.55
1.60
1.65
1.70
1.75
1.80
1.85
1.90
1.95
2.00
2.05
2.10
2.15
2.20
2.25
2.30
2.35
2.40
2.45
2.50
2.55
2.60
2.65
2.70
0.784 0.800 0.816
0.833 0.850 0.867
0.882 0.900 0.918
0.931 0.950 0.969
0.980 1.000 1.020
1.029 1.050 1.071
1.078 1.100 1.122
1.127 1.150 1.173
1.176 1.200 1.224
1.225 1.250 1.275
1.274 1.300 1.326
1.323 1.350 1.377
1.372 1.400 1.428
1.421 1.450 1.479
1.470 1.500 1.530
1.519 1.550 1.581
1.568 1.600 1.632
1.617 1.650 1.683
1.666 1.700 1.734
1.715 1.750 1.785
1.764 1.800 1.836
1.813 1.850 1.887
1.862 1.900 1.938
1.911 1.950 1.989
1.960 2.000 2.040
2.009 2.050 2.091
2.058 2.100 2.142
2.107 2.150 2.193
2.156 2.200 2.244
2.205 2.250 2.295
2.254 2.300 2.346
2.303 2.350 2.397
2.352 2.400 2.448
2.401 2.450 2.499
2.450 2.500 2.550
2.499 2.550 2.601
2.548 2.600 2.652
2.597 2.650 2.703
2.646 2.700 2.754
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.70
2.75
2.83
2.92
3.00
3.08
3.17
3.25
3.33
3.42
3.50
3.58
3.67
3.75
3.83
3.92
4.00
4.08
4.17
4.25
4.33
4.42
4.50
173
184
194
205
216
227
238
248
259
270
281
292
302
313
324
335
346
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
350
247
262
278
293
309
324
340
355
370
386
401
417
432
448
463
478
494
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
321
341
361
381
401
421
441
461
481
502
522
542
562
582
602
622
642
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
650
71
119
121
122
123
123
130
136
142
148
154
160
167
173
179
185
191
198
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
166
169
171
172
160
169
177
185
193
201
209
217
225
233
241
249
257
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
260
72
73
74
86
91
95
99
104
108
112
117
121
125
130
134
138
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
140
7/28
XC9260/XC9261Series
■ELECTRICAL CHARACTERISTICS (Continued)
SPEC Table
tONmin
NOMINAL
VOUT
OUTPUT
fOSC=1.2MHz
<E-6>
fOSC=3.0MHz
<E-6>
VOLTAGE
<E-1> <E-2> <E-3> <C-1> <E-5>
<E-7>
MAX.
<E-5>
MIN.
<E-7>
MAX.
VOUT(T)
MIN.
TYP.
MAX.
VIN
MIN.
TYP.
TYP.
2.75
2.80
2.85
2.90
2.95
3.00
3.05
3.10
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
2.695 2.750 2.805
2.744 2.800 2.856
2.793 2.850 2.907
2.842 2.900 2.958
2.891 2.950 3.009
2.940 3.000 3.060
2.989 3.050 3.111
3.038 3.100 3.162
3.087 3.150 3.213
3.136 3.200 3.264
3.185 3.250 3.315
3.234 3.300 3.366
3.283 3.350 3.417
3.332 3.400 3.468
3.381 3.450 3.519
3.430 3.500 3.570
3.479 3.550 3.621
3.528 3.600 3.672
4.58
4.67
4.75
4.83
4.92
5.00
5.08
5.17
5.25
5.33
5.42
5.50
5.50
5.50
5.50
5.50
5.50
5.50
350
350
350
350
350
350
350
350
350
350
350
350
355
361
366
371
377
382
500
500
500
500
500
500
500
500
500
500
500
500
508
515
523
530
538
545
650
650
650
650
650
650
650
650
650
650
650
650
660
670
680
689
699
709
140
140
140
140
140
140
140
140
140
140
140
140
142
144
146
148
151
153
200
200
200
200
200
200
200
200
200
200
200
200
203
206
209
212
215
218
260
260
260
260
260
260
260
260
260
260
260
260
264
268
272
276
280
284
8/28
XC9260/XC9261
Series
■TEST CIRCUITS(*1)
< Circuit No.① >
< Circuit No.② >
Wave Form Measure Point
L
VIN
A
VIN
A
LX
LX
VOUT
VOUT
CE
CE
V
RL
1μF
CIN
CL
AGND
PGND
AGND
PGND
※
External Components
※
External Components
fOSC = 3.0MHz
L : 1.0μH(LQM2MPN1R0MGH)
fOSC = 1.2MHz
L
: 4.7μH(LTF5022T-4R7N2R0-LC)
CIN : 10μF(ceramic)
CL : 10μF(ceramic)
CIN : 10μF(ceramic)
CL : 10μF(ceramic)
< Circuit No.④ >
< Circuit No.③ >
Wave Form Measure Point
VIN
VIN
LX
LX
Rpulldown
200Ω
VOUT
VOUT
CE
V
ILX
CE
1μF
1uF
AGND
PGND
AGND
PGND
RLXH = (VIN-VLx)/ILX
RLXL = VLx/ILX
< Circuit No.⑤ >
< Circuit No.⑥ >
ILeakH
A
Wave Form Measure Point
VIN
LX
VIN
LX
1μF
ICEH
ILIMH
ILeakL
VOUT
VOUT
CE
A
CE
V
1μF
AGND
PGND
AGND
PGND
ICEL
< Circuit No.⑦ >
B TYPE
VIN
LX
1μF
VOUT
CE
A
AGND
PGND
(*1) In the case of SOT-89-5, AGND and PGND are treated as VSS
.
9/28
XC9260/XC9261Series
■TYPICAL APPLICATION CIRCUIT
* In the case of SOT-89-5, AGND and PGND are treated as VSS
.
【Typical Examples】fOSC=1.2MHz
MANUFACTURER
murata
PRODUCT NUMBER
VALUE
4.7μH
4.7μH
4.7μH
LQH5BPN4R7NT0L
LTF5022T-4R7N2R0-LC
XFL4020-472MEC
L
TDK
Coilcraft
【Typical Examples】fOSC=3.0MHz
MANUFACTURER
murata
PRODUCT NUMBER
LQM2MPN1R0MGH
MAKK2016T1R0M
MLP2520K1R0M
VALUE
1.0μH
1.0μH
1.0μH
L
TAIYO YUDEN
TDK
(*1)
【Typical Examples】
f
=1.2MHz, fOSC=3.0MHz
OSC
MANUFACTURER
murata
PRODUCT NUMBER
GRM155R61A106M
GRM21BR71A106KE51
LMK212AB7106MG
GRM155R61A106M
GRM21BR71A106KE51
LMK212AB7106MG
VALUE
10μF/10V
CIN
murata
10μF/10V
TAIYO YUDEN
murata
10μF/10V
10μF/10V (*2)
10μF/10V (*2)
10μF/10V (*2)
CL
murata
TAIYO YUDEN
(*1) Select components appropriate to the usage conditions (ambient temperature, input & output voltage).
(*2) CL=20μF or more if VIN - VOUT(T)<1.5
・The relationship between Output Voltage, Input Voltage, and CL value
5.5
5.2
4.9
4.6
4.3
4.0
3.7
3.4
3.1
2.8
2.5
External components
CL = 10μF
External components
CL = 20μFꢀor more
Output Voltage (V)
10/28
XC9260/XC9261
Series
■OPERATIONAL EXPLANATION
The XC9260/XC9261 series consists of a reference voltage source, error amplifier, comparator, phase compensation, minimum
on time generation circuit, output voltage adjustment resistors, P-channel MOS driver transistor, N-channel MOS switching
transistor for the synchronous switch, current limiter circuit, UVLO circuit, thermal shutdown circuit, short protection circuit,
PWM/PFM selection circuit and others. (See the BLOCK DIAGRAM below.)
BLOCK DIAGRAM XC9260/XC9261 Series Type B (SOT-89-5)
The method is HiSAT-COT (High Speed circuit Architecture for Transient with Constant On Time) control, which features on
time control method and a fast transient response that also achieves low output voltage ripple.
The on time (ton) is determined by the input voltage and output voltage, and turns on the Pch MOS driver Tr. for a fixed time.
During the off time (toff), the voltage that is fed back through R1 and R2 is compared to the reference voltage by the error amp,
and the error amp output is phase compensated and sent to the comparator. The comparator compares this signal to the
reference voltage, and if the signal is lower than the reference voltage, sets the SR latch. On time then resumes. By doing this,
PWM operation takes place with the off time controlled to the optimum duty ratio and the output voltage is stabilized. The phase
compensation circuit optimizes the frequency characteristics of the error amp, and generates a ramp wave similar to the ripple
voltage that occurs in the output to modulate the output signal of the error amp. This enables a stable feedback system to be
obtained even when a low ESR capacitor such as a ceramic capacitor is used, and a fast transient response and stabilization of
the output voltage are achieved.
<Minimum on time generation circuit>
Generates an on time that depends on the input voltage and output voltage (ton). The on time is set as given by the equations
below.
f
OSC≒1.2MHz type
ton (ns) = VOUT/VIN×833
f
t
OSC≒3.0MHz type
on (ns) = VOUT/VIN×333
<Switching frequency>
The switching frequency can be obtained from the on time (ton), which is determined by the input voltage and output voltage,
and the PWM controlled off time (toff) as given by the equation below.
fOSC (MHz) = VOUT(V) / (VIN(V)×ton(ns))
<100% duty cycle mode>
When the load current is heavy and the voltage difference between input voltage and output voltage is small, 100% duty cycle
mode is activated and it keeps the Pch MOS driver Tr. keep on. 100% duty cycle mode attains a high output voltage stability and
a high-speed response under all load conditions, from light to heavy, even in conditions where the dropout voltage is low.
<Error amp>
The error amp monitors the output voltage. The voltage divided by the internal R1 and R2 resistors is a feedback voltage for
Error Amp. and compared to the reference voltage. The output voltage of the error amp becomes higher when the feedback
voltage is higher than the reference voltage. The frequency characteristics of the error amp are optimized internally.
11/28
XC9260/XC9261Series
■OPERATIONAL EXPLANATION (Continued)
<Reference voltage source, soft start function>
The reference voltage forms a reference that is used to stabilize the output voltage of the IC.
After “H” level is fed to CE pin, the reference voltage connected to the error amp increases linearly during the soft start interval.
This allows the voltage divided by the internal R1 and R2 resistors and the reference voltage to be controlled in a balanced
manner, and the output voltage rises in proportion to the rise in the reference voltage. This operation prevents rush input current
and enables the output voltage to rise smoothly.
If the output voltage does not reach the set output voltage within the soft start time, such as when the load is heavy or a large
capacity output capacitor is connected, the balancing of the voltage divided by the internal resistors R1 and R2 and the
reference voltage is lost, however, the current restriction function activates to prevent an excessive increase of input current,
enabling a smooth rise of the output voltage.
<PWM/PFM selection circuit>
Regarding XC9260 which has PWM control method, it works with a continuous conduction mode, and operates at a stable
switching frequency by means of an on time (ton) that is determined by the input voltage and output voltage regardless of the load.
Regarding XC9261 which has PWM/PFM auto switching control method, it works with a discontinuous conduction mode at
light loads, and lowers the switching frequency to reduce switching loss and improve efficiency.
<CE function>
Operation starts when “H” voltage is input into the CE pin. The IC can be put in the shutdown state by inputting “L” voltage into
the CE pin. In the shutdown state, the supply current of the IC is 0μA (TYP.), and the Pch MOS driver Tr. and Nch MOS switch
Tr. for synchronous rectification turn off. The CE pin is a CMOS input and the sink current is 0μA.
<UVLO Circuit>
When the VIN voltage becomes 2.00V (TYP.) or lower, the P-ch MOS driver transistor 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 2.10V
(TYP.) or higher, switching operation takes place. By releasing the UVLO function, the IC performs the soft start function to
initiate output startup operation. 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.
<Thermal Shutdown>
For protection against heat damage of the ICs, thermal shutdown function monitors chip temperature. The thermal shutdown
circuit starts operating and the P-ch MOS driver and N-ch MOS driver transistor will be turned off when the chip’s temperature
reaches 150℃. When the temperature drops to 120℃ or less after shutting of the current flow, the IC performs the soft-start
function to initiate output startup operation.
<Short-circuit protection function>
The B type short-circuit protection circuit protects the device that is connected to this product and to the input/output in
situations such as when the output is accidentally shorted to GND. The short-circuit protection circuit monitors the output
voltage, and when the output voltage falls below the short-circuit protection threshold voltage, it turns off the Pch MOS driver Tr
and latches it. Once in the latched state, operation is resumed by turning off the IC from the CE pin and then restarting, or by
re-input into the VIN pin.
<CL High Speed Discharge>
The B type 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-ch MOS switch transistor located between the VOUT pin and
the GND pin. When the IC is disabled, electric charge at the output capacitor (CL) is quickly discharged so that it may avoid
application malfunction.
Output Voltage Dischage characteristics
RDCHG = 210 (TYP) C =10
F
μ
Ω
L
V=VOUT(T)×e – t /
τ
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
t=τln (VOUT(T) / V)
VOUT = 1.2V
V: Output voltage after discharge
VOUT(T): Output voltage
t: Discharge time
V
OUT = 1.8V
OUT = 3.3V
---
V
τ: CL×RDCHG
CL: Capacitance of Output capacitor
R
DCHG: CL auto-discharge resistance,
but it depends on supply voltage.
0
2
4
6
8
10 12 14 16 18 20
Discharge Time: t(ms)
12/28
XC9260/XC9261
Series
■OPERATIONAL EXPLANATION (Continued)
<Current Limit>
The current limiter circuit of the XC9260/XC9261 series monitors the current flowing through the P-channel MOS driver transistor
connected to the Lx pin. 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. When the over current state is eliminated, the IC resumes its normal operation.
■NOTE ON USE
1. For the phenomenon of temporal and transitional voltage decrease or voltage increase, the IC may be damaged or
deteriorated if IC is used beyond the absolute MAX. specifications.
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. The DC/DC converter characteristics depend greatly on the externally connected components as well as on the
characteristics of this IC, so refer to the specifications and standard circuit examples of each component when carefully
considering which components to select. Be especially careful of the capacitor characteristics and use B characteristics (JIS
standard) or X7R, X5R (EIA standard) ceramic capacitors.
4. Make sure that the PCB GND traces are as thick and wide as possible. The VSS pin or PGND pin and AGND pin fluctuation
caused by high ground current at the time of switching may result in instability of the IC. Therefore, the GND traces close to
the VSS pin, PGND pin and AGND pin are important.
5. Mount external components as close as possible to the IC. Keep the wiring short and thick to lower the wiring impedance.
6. A feature of HiSAT-COT control is that it controls the off time in order to control the duty, which varies due to the effects of
power loss. In addition, changes in the on time due to 100% duty cycle mode are allowed. For this reason, caution must be
exercised as the characteristics of the switching frequency will vary depending on the external component characteristics,
board layout, input voltage, output voltage, load current and other parameters.
7. Due to propagation delay inside the product, the on time generated by the minimum on time generation circuit is not the same
as the on time that is the ratio of the input voltage to the output voltage.
8. With regard to the current limiting value, the actual coil current may at times exceed the electrical characteristics due to
propagation delay inside the product.
9. The CE pin is a CMOS input pin. Do not use with the pin open. If connecting to the input or ground, use the resistor not more
than 1MΩ or less. To prevent malfunctioning of the device connected to this product or the input/output due to short circuiting
between pins, it is recommended that a resistor be connected.
10. In the B type, if the output voltage drops below the short circuit protection threshold voltage at the end of the soft start
interval, operation will stop.
11. Regarding XC9261 which has PWM/PFM auto switching control method, it works with a discontinuous conduction mode at
light loads, and in this case where the voltage difference between input voltage and output voltage is low or the coil
inductance is higher than the value indicated in the standard circuit example, the coil current may reverse when the load is
light, and thus pulse skipping will not be possible and light load efficiency will worsen.
12. When the voltage difference between input voltage and output voltage is low, the load stability feature may deteriorate.
13. Torex places an importance on improving our products and their reliability.We request that users incorporate fail-safe
designs and post-aging protection treatment when using Torex products in their systems.
13/28
XC9260/XC9261Series
■NOTE ON USE (Continued)
14. Instructions of pattern layouts
The operation may become unstable due to noise and/or phase lag from the output current when the wire impedance is high,
please place the input capacitor(CIN) and the output capacitor (CL) as close to the IC as possible.
(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 pin, PGND pin and AGND pin.
(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 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 P-channel and
N-channel MOS driver transistors. Please consider the countermeasures against heat if necessary.
<Reference pattern layout>
SOT-89-5
PCB mounted
1st Layer
2nd Layer
USP-6C
PCB mounted
1st Layer
2nd Layer
14/28
XC9260/XC9261
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Efficiency vs. Output Current
XC9260A10D / XC9261A10D
XC9260A10C / XC9261A10C
L = LTF5022T-4R7N2R0-LC(4.7 H)
L = LQM2MPN1R0MGH(1.0 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ μ
IN L
μ
μ
IN
L
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
XC9261
XC9260
XC9261
XC9260
VIN = 5.0V
VIN = 3.7V
VIN = 5.0V
VIN = 3.7V
VIN = 5.0V
VIN = 3.7V
VIN = 5.0V
VIN = 3.7V
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
XC9260A18D / XC9261A18D
XC9260A18C / XC9261A18C
L = LQM2MPN1R0MGH(1.0 H)
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ
100
90
80
70
60
50
40
30
20
μ
μ
100
90
80
70
60
50
40
30
20
10
0
μ
IN
L
IN
L
XC9261
XC9260
VIN = 5.0V
VIN = 3.7V
XC9261
XC9260
VIN = 5.0V
VIN = 3.7V
VIN = 5.0V
VIN = 3.7V
VIN = 5.0V
VIN = 3.7V
10
0
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
XC9260A33D / XC9261A33D
XC9260A33C / XC9261A33C
L = LQM2MPN1R0MGH(1.0 H)
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ
100
90
80
70
60
50
40
30
20
μ
μ
100
90
80
70
60
50
40
30
20
μ
IN
L
IN
L
XC9261
XC9260
XC9261
XC9260
VIN = 5.0V
VIN = 5.0V
10
0
10
0
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
15/28
XC9260/XC9261Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(2) Output Voltage vs. Output Current
XC9261A18D
XC9261A33D
L = LQM2MPN1R0MGH(1.0 H)
L = LQM2MPN1R0MGH(1.0 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ
μ
μ
μ
IN
L
IN
L
3.60
2.00
3.50
3.40
3.30
3.20
3.10
3.00
1.90
1.80
1.70
1.60
VIN = 5.0V
1000
VIN = 3.7V
1000
0.1
1
10
100
10000
0.1
1
10
100
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
(3) Ripple Voltage vs. Output Current
XC9260A18D / XC9261A18D
L = LQM2MPN1R0MGH(1.0 H)
XC9260A33D / XC9261A33D
L = LQM2MPN1R0MGH(1.0 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ μ
IN L
μ
μ
IN
L
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
XC9261
XC9260
XC9261
XC9260
VIN = 5.0V
VIN = 3.7V
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
XC9260A18C / XC9261A18C
XC9260A33C / XC9261A33C
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ μ
L
IN
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ μ
L
IN
100
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
XC9261
XC9260
XC9261
XC9260
VIN = 3.7V
VIN = 5.0V
0.1
1
10
100
1000
10000
0.1
1
10
100
1000
10000
Output Current: IOUT (mA)
Output Current: IOUT (mA)
16/28
XC9260/XC9261
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(4) FB Voltage vs. Ambient Temperature
(5) UVLO Voltage vs. Ambient Temperature
XC9261B18D
XC9260A08D
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
VIN = 3.7V
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature: Ta (
)
Ambient Temperature: Ta (
)
℃
℃
(6) Quiescent Current vs. Ambient Temperature
XC9261A08D
XC9261A08C
100
90
80
100
90
80
70
60
50
40
30
20
10
0
70
60
50
40
30
20
10
0
VIN = 5.0V, 3.7V, 2.7V
VIN = 5.0V, 3.7V, 2.7V
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature: Ta (
)
Ambient Temperature: Ta (
)
℃
℃
XC9260A08D
XC9260A08C
1000
900
800
700
600
500
400
300
200
100
0
1000
900
800
700
600
500
400
300
200
100
0
VIN = 5.0V
IN = 3.7V
VIN = 2.7V
V
VIN = 5.0V
VIN = 3.7V
VIN = 2.7V
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature: Ta (
)
℃
Ambient Temperature: Ta (
)
℃
17/28
XC9260/XC9261Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(7) Stand-by Current vs. Ambient Temperature
(8) Oscillation Frequency vs. Ambient Temperature
XC9261A08D
XC9260A08D
L = LQM2MPN1R0MGH(1.0μH)
CIN = 10μF(GRM155R61A106M) CL = 10μF(GRM155R61A106M)
6.0
5.5
5.0
4.5
4.0
3.5
3.0
5.0
4.0
3.0
2.0
VIN = 5.0V
2.5
2.0
1.5
1.0
VIN = 5.0V
VIN = 3.6V
VIN = 3.7V, 2.7V
1.0
0.0
V
IN = 3.0V
-50
-25
0
25
50
75
100
125
0.0
500.0
1000.0
1500.0
2000.0
Ambient Temperature: Ta (
)
Output Current: IOUT (mA)
℃
XC9260A18D
XC9260A33D
L = LQM2MPN1R0MGH(1.0μH)
L = LQM2MPN1R0MGH(1.0μH)
CIN = 10μF(GRM155R61A106M) CL = 10μF(GRM155R61A106M)
CIN = 10μF(GRM155R61A106M) CL = 10μF(GRM155R61A106M)
6.0
6.0
5.5
5.0
5.5
5.0
4.5
4.5
VIN = 5.0V, 5.5V
VIN = 5.0V, 3.6V
4.0
4.0
3.5
3.0
2.5
3.5
3.0
2.5
VIN = 4.2V
VIN = 3.0V
2.0
2.0
1.5
1.0
1.5
1.0
0.0
500.0
1000.0
1500.0
2000.0
0.0
500.0
1000.0
1500.0
2000.0
Output Current: IOUT (mA)
Output Current: IOUT (mA)
XC9260A08C
XC9260A18C
L = LTF5022T-4R7N2R0-LC(4.7 H)
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ
μ
μ
μ
IN
L
IN
L
3.0
3.0
VIN = 5.0V
VIN = 3.6V
VIN = 3.0V
2.5
2.0
1.5
1.0
0.5
0.0
2.5
2.0
1.5
1.0
0.5
0.0
VIN = 5.0V, 3.6V
VIN = 3.0V
0.0
500.0
1000.0
1500.0
2000.0
0.0
500.0
1000.0
1500.0
2000.0
Output Current: IOUT (mA)
Output Current: IOUT (mA)
18/28
XC9260/XC9261
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(8) Oscillation Frequency vs. Ambient Temperature (Continued)
(9) Pch Driver ON Resistance vs. Ambient Temperature
XC9260A33C
XC9260A08D
L = LTF5022T-4R7N2R0-LC(4.7 H)
μ
C
= 10 F(GRM155R61A106M) C = 10 F(GRM155R61A106M)
μ μ
L
IN
3.0
300
250
200
150
100
50
2.5
2.0
1.5
1.0
0.5
0.0
VIN = 5.0V, 5.5V
VIN = 5.0V
VIN = 3.7V
VIN = 4.2V
V
IN = 2.7V
0
0.0
500.0
1000.0
1500.0
2000.0
-50
-25
0
25
50
75
100
125
Output Current: IOUT (mA)
Ambient Temperature: Ta (
)
℃
(10) Nch Driver ON Resistance vs. Ambient Temperature
XC9260A08D
(11) LxSW ”H” Leakage Current vs. Ambient Temperature
XC9260A08D
300
10.0
9.0
8.0
7.0
6.0
5.0
4.0
3.0
VIN = 5.0V
250
200
150
100
50
VIN = 3.7V
IN = 2.7V
V
2.0
1.0
0.0
VIN = 5.5V
0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100 125
Ambient Temperature: Ta (
)
℃
Ambient Temperature : Ta (
)
℃
(12) LxSW ”L” Leakage Current vs. Ambient Temperature
XC9260A08D
(13) CE ”H” Voltage vs. Ambient Temperature
XC9261A08D
10.0
9.0
8.0
7.0
6.0
5.0
4.0
1.4
1.2
1.0
0.8
0.6
VIN = 5.5V
VIN = 5.0V
0.4
3.0
2.0
1.0
0.0
V
IN = 3.7V
VIN = 2.7V
0.2
0.0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature : Ta (
)
Ambient Temperature: Ta (
)
℃
℃
19/28
XC9260/XC9261Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(14) CE”L” Voltage vs. Ambient Temperature
(15) Soft-Start Time vs. Ambient Temperature
XC9261A08D
XC9261B08D
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
500
450
400
VIN = 5.0V
350
300
250
200
150
100
50
VIN = 5.0V
IN = 3.7V
VIN = 2.7V
V
0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature: Ta (
)
Ambient Temperature: Ta (
)
℃
℃
(16) Current Limit vs. Ambient Temperature
XC9261A08D
(17) CL Discharge Resistance vs. Ambient Temperature
XC9261B08D
4000
3800
3600
3400
3200
3000
2800
2600
2400
2200
2000
300
250
200
150
100
50
VIN = 5.0V
VIN = 5.0V
VIN = 3.7V
V
IN = 2.7V
0
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ambient Temperature : Ta (
)
℃
Ambient Temperature: Ta (
)
℃
(18) Short Protection Threshold vs. Ambient Temperature
XC9261B08D
500
400
300
200
VIN = 5.0V, 3.7V, 2.7V
100
0
-50
-25
0
25
50
75
100
125
Ambient Temperature: Ta (
)
℃
20/28
XC9260/XC9261
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(19) Load Transient Response
XC9260A12D
VIN = 5.0V VOUT = 1.2V fOSC = 3.0MH
XC9261A12D
VIN = 5.0V VOUT = 1.2V fOSC = 3.0MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LQM2MPN1R0MGH(1.0 H) C = 10 F(GRM155R61A106M)
L = LQM2MPN1R0MGH(1.0 H) C = 10 F(GRM155R61A106M)
μ μ
IN
μ
μ
IN
C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M)
μ
μ
L
L
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 50mV/div
VOUT : 50mV/div
50 s/div
μ
50 s/div
μ
XC9260A18D
VIN = 5.0V VOUT = 1.8V fOSC = 3.0MH
XC9261A18D
VIN = 5.0V VOUT = 1.8V fOSC = 3.0MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LQM2MPN1R0MGH(1.0 H) C = 10 F(GRM155R61A106M)
L = LQM2MPN1R0MGH(1.0 H) C = 10 F(GRM155R61A106M)
μ μ
IN
μ
μ
IN
C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M)
μ
L
μ
L
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 50mV/div
VOUT : 50mV/div
50 s/div
μ
50 s/div
μ
XC9260A33D
VIN = 5.0V VOUT = 3.3V fOSC = 3.0MH
XC9261A33D
VIN = 5.0V VOUT = 3.3V fOSC = 3.0MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF(GRM155R61A106M)
CL = 10μF(GRM155R61A106M)
L = LQM2MPN1R0MGH(1.0μH) CIN = 10μF(GRM155R61A106M)
CL = 10μF(GRM155R61A106M)
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 50mV/div
VOUT : 50mV/div
50 s/div
μ
50 s/div
μ
21/28
XC9260/XC9261Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(19) Load Transient Response (Continued)
XC9260A12C
VIN = 5.0V VOUT = 1.2V fOSC = 1.2MH
XC9261A12C
VIN = 5.0V VOUT = 1.2V fOSC = 1.2MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LTF5022T-4R7N2R0-LC(4.7μH) C = 10 F(GRM155R61A106M) L = LTF5022T-4R7N2R0-LC(4.7μH) C = 10 F(GRM155R61A106M)
μ
μ
IN
IN
C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M)
μ
μ
L
L
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 100mV/div
VOUT : 100mV/div
50 s/div
μ
50 s/div
μ
XC9260A18C
VIN = 5.0V VOUT = 1.8V fOSC = 1.2MH
XC9261A18C
VIN = 5.0V VOUT = 1.8V fOSC = 1.2MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LTF5022T-4R7N2R0-LC(4.7μH) C = 10 F(GRM155R61A106M) L = LTF5022T-4R7N2R0-LC(4.7μH) C = 10 F(GRM155R61A106M)
μ
μ
IN
IN
C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M)
μ
μ
L
L
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 100mV/div
VOUT : 100mV/div
50 s/div
μ
50 s/div
μ
XC9260A33C
VIN = 5.0V VOUT = 3.3V fOSC = 1.2MH
XC9261A33C
VIN = 5.0V VOUT = 3.3V fOSC = 1.2MH
I
= 10mA
1.0A
I
= 10mA
1.0A
⇒
z
⇒
z
OUT
OUT
L = LTF5022T-4R7N2R0-LC(4.7 H) C = 10 F(GRM155R61A106M) L = LTF5022T-4R7N2R0-LC(4.7 H) C = 10 F(GRM155R61A106M)
μ
μ
μ
μ
IN
IN
C = 10 F(GRM155R61A106M)
C = 10 F(GRM155R61A106M)
μ
L
μ
L
IOUT : 1.0A
IOUT : 1.0A
IOUT : 10mA
IOUT : 10mA
VOUT : 200mV/div
VOUT : 200mV/div
50 s/div
μ
50 s/div
μ
22/28
XC9260/XC9261
Series
■PACKAGING INFORMATION
●USP-6C (unit:mm)
1.8±0.05
1pin INDENT
0.05
0.30±0.05
(0.1)
(0.50)
0.20±0.05
0.10±0.05
1.4±0.05
●SOT-89-5 (unit:mm)
4.5±0.1
+0.15
1.6
-0.2
+0.03
-0.02
0.42±0.06
0.42±0.06
0.42±0.06
2
0.4
4
5
Φ1.0
1
2
3
+0.03
-0.02
0.4
0.42±0.06
0.47±0.06
0.42±0.06
(1.7)
(1.6)
1.5±0.1
1.5±0.1
23/28
XC9260/XC9261Series
■PACKAGING INFORMATION (Continued)
●USP-6C Reference Pattern Layout (unit: mm)
●USP-6C Reference Metal Mask Design (unit: mm)
24/28
XC9260/XC9261
Series
■PACKAGING INFORMATION (Continued)
●
SOT-89-5 Power Dissipation
Power dissipation data for the SOT-89-5 is shown in this page.
The value of power dissipation varies with the mount board conditions.
Please use this data as the reference data taken in the following condition.
1. Measurement Condition
Condition: Mount on a board
Ambient: Natural convection
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 5 x 0.8 Diameter
Evaluation Board (Unit: mm)
2. Power Dissipation vs. Ambient Temperature (105℃)
Board Mount (Tjmax=125℃)
Ambient Temperature (℃)
Power Dissipation Pd (mW)
Thermal Resistance (℃/W)
25
1300
260
76.92
105
Pd vs. Ta
1400
1200
1000
800
600
400
200
0
25
45
65
85
105
125
Ambient Temperature: Ta (℃)
25/28
XC9260/XC9261Series
■PACKAGING INFORMATION (Continued)
●
USP-6C Power Dissipation
Power dissipation data for the USP-6C is shown in this page.
The value of power dissipation varies with the mount board conditions.
Please use this data as the reference data taken in the following condition.
1. Measurement Condition
Condition: Mount on a board
Ambient: Natural convection
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
Evaluatn Board (Un: mm)
2. Power Dissipation vs. Ambient Temperature (105℃)
Board Mount (Tjmax=125℃)
Ambient Temperature (℃)
Power Dissipation Pd (mW)
Thermal Resistance (℃/W)
25
1000
200
100.00
105
Pd vs. Ta
1200
1000
800
600
400
200
0
25
45
65
85
105
125
Ambient Temperature: Ta (℃)
26/28
XC9260/XC9261
Series
■MARKING RULE
① represents products series
SOT89-5
MARK
PRODUCT SERIES
5
2
4
A
B
XC9260A*****-G, XC9261A*****-G
XC9260B*****-G, XC9261B*****-G
② represents integer and oscillation frequency of the output voltage
MARK
VOUT(V)
XC9260 Series
XC9261 Series
1
2
3
fOSC=1.2MlHz
fOSC=3.0MlHz
fOSC=1.2MlHz
fOSC=3.0MlHz
0.x
1.x
2.x
3.x
A
B
C
D
E
F
N
P
R
U
V
X
Y
USP-6C
L
M
T
1
2
3
6
5
4
③ represents decimal number of the output voltage
VOUT(V)
MARK
VOUT(V)
MARK
X.00
X.10
X.20
X.30
X.40
X.50
X.60
X.70
X.80
X.90
0
1
2
3
4
5
6
7
8
9
X.05
X.15
X.25
X.35
X.45
X.55
X.65
X.75
X.85
X.95
A
B
C
D
E
F
H
K
L
M
④⑤ 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)
* No character inversion used.
27/28
XC9260/XC9261Series
1. The products 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. We assume no responsibility for any infringement of patents, patent rights, or other
rights arising from the use of any information and circuitry in this datasheet.
3. Please ensure suitable shipping controls (including fail-safe designs and aging
protection) are in force for equipment employing products listed in this datasheet.
4. The products in this datasheet are not developed, designed, or approved for use with
such equipment whose failure of malfunction can be reasonably expected to directly
endanger the life of, or cause significant injury to, the user.
(e.g. Atomic energy; aerospace; transport; combustion and associated safety
equipment thereof.)
5. Please use the products listed in this datasheet within the specified ranges.
Should you wish to use the products under conditions exceeding the specifications,
please consult us or our representatives.
6. We assume no responsibility for damage or loss due to abnormal use.
7. All rights reserved. No part of this datasheet may be copied or reproduced without the
prior permission of TOREX SEMICONDUCTOR LTD.
28/28
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