XC9265B38B4R-G_技术文档

XC9265Series

ETR05053-004

Ultra Low Power Synchronous Step-Down PFM DC/DC Converter

☆GreenOperation Compatible

■GENERAL DESCRIPTION

XC9265 series are Ultra Low Power synchronous-rectification type PFM step down DC/DC converters with a built-in 0.4Ω

(TYP.) Pch driver and 0.4Ω (TYP.) Nch synchronous switching transistor, designed to allow the use of ceramic capacitor.

PFM control enables a low quiescent current, making these products ideal for battery operated devices that require high

efficiency and long battery life.

Only inductor, C^INand C capacitors are needed as external parts to make a step down DC/DC circuit.

L

Operation voltage range is from 2.0V to 6.0V. This product has fixed output voltage from 1.0V to 4.0V(accuracy: ±2.0%) in

increments of 0.05V.

During stand-by, all circuits are shutdown to reduce consumption to as low as 0.1μA(TYP.) or less.

With the built-in UVLO (Under Voltage Lock Out) function, the internal P-channel MOS driver transistor is forced OFF when input

voltage gets lower than UVLO detection voltage. Besides, XC9265 series has UVLO release voltage of 1.8V (Typ.).

The product with C

L

discharge function can discharge C capacitor during stand-by mode due to the internal resistance by turning

L

on the internal switch between V_OUT-GND. This enables output voltage restored to GND level fast.

■FEATURES

■APPLICATIONS

Input Voltage Range

:

2.0V~6.0V

●

Wearable Devices

Output Voltage Setting

Output Current

1.0V~4.0V (±2.0%, 0.05V step increments)

Smart meters

200mA(XC9265A/C)

50mA(XC9265B/D)

Bluetooth units

Driver Transistor

:

0.4Ω (Pch Driver Tr)

Energy Harvest devices

Back up power supply circuits

Portable game consoles

Devices with 1 Lithium cell

0.4Ω (Nch Synchronous rectifier Switch Tr)

0.50μA @ V^OUT(T)=1.8V (TYP.)

PFM control

Supply Current

Control Method

:

High Speed Transient

PFM Switching Current

:

50mV (V^IN=3.6V, VOUT=1.8V, IOUT=10μA→50mA)

330mA(XC9265A/C), 180mA(XC9265B/D)

Function

:

Short Protection

CL Discharge(XC9265C/ D)

UVLO

Ceramic Capacitor Compatible

-40～+85℃

Operation Ambient Temperature

Package

:

SOT-25, USP-6EL

Environmentally Friendly

EU RoHS compliant, Pb Free

■TYPICAL PERFORMANCE

■TYPICAL APPLICATION CIRCUIT

CHARACTERISTICS

●Efficiency vs. Output Current

XC9265B181xR-G(V_OUT=1.8V)

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

L

100

V_IN

V_OUT

V_IN

CE

L_X

80

C_IN

(Ceramic)

C_L

(Ceramic)

V_OUT

V_IN=4.2V

60

V_IN=3.6V

GND

V_IN=2.7V

40

20

0

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

1/30

XC9265 series

■BLOCK DIAGRAM

* Diodes inside the circuits are ESD protection diodes and parasitic diodes.

XC9265A and B type do not have C_LDischarge function.

■PRODUCT CLASSIFICATION

●Ordering information

XC9265①②③④⑤⑥-⑦

DESIGNATOR

ITEM

SYMBOL

DESCRIPTION

Iout=200mA Without C_LDischarge

A

B

C

Iout=50mA Without C_LDischarge

Iout=200mA With C_LDischarge

Iout=50mA With C_LDischarge

①

Product Type

D

Output Voltage : e.g. V_OUT=1.80V⇒②=1, ③=8

Output Voltage Range: 1.0V～4.0V (0.05V step)

Output Voltage {x.x0V} (the 2nd decimal place is “0”)

Output Voltage {x.x5V} (the 2nd decimal place is “5”)

USP-6EL (3,000pcs/Reel)

②③

④

Output Voltage

Output Voltage Type

Packages (Order Unit)

10 ～ 40

1

B

4R-G

MR-G

(*1)

⑤⑥-⑦

SOT-25 (3,000pcs/Reel)

^(*1)The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.

2/30

XC9265

Series

■PIN CONFIGURATION

L_X

5

V_OUT

4

1 L_X

V_IN

6

5

4

GND

2

3

NC

CE

V_OUT

1

2

3

V_IN

GND

CE

USP-6EL

(BOTTOM VIEW)

SOT-25

(TOP VIEW)

* The dissipation pad for the USP-6EL package should be solder-plated in

recommended mount pattern and metal masking so as to enhance mounting

strength and heat release.

The mount pattern should be connected to GND pin (No.2).

■PIN ASSIGNMENT

PIN NUMBER

PIN NAME

FUNCTIONS

USP-6EL

SOT-25

1

2

3

4

5

6

5

2

4

3

-

L_X

GND

V_OUT

CE

Switching

Ground

Output Voltage

Chip Enable

No Connection

Power Input

NC

1

V_IN

■CE PIN FUNCTION

PIN NAME

SIGNAL

STATUS

H

L

Operation (All Series)

Standby (All Series)

CE

* Please do not leave the CE pin open.

■ABSOLUTE MAXIMUM RATINGS

Ta=25˚C

PARAMETER

V_INPin Voltage

L_XPin Voltage

V_OUTPin Voltage

CE Pin Voltage

SYMBOL

V_N

RATINGS

UNITS

-0.3 ~ +7.0

-0.3 ~ V_IN+0.3 or +7.0 ^(*1)

-0.3 ~ +7.0

V

V_LX

V_OUT

V_CE

L_XPin Current

I_LX

1000

mA

SOT-25

250

120

Power Dissipation

Pd

mW

USP-6EL

Operating Ambient Temperature

Storage Temperature

Topr

Tstg

-40 ~ +85

-55 ~ +125

˚C

* All voltages are described based on the GND.

^(*1)The maximum value is the lower of either VIN + 0.3 or +7.0.

3/30

XC9265 series

■ELECTRICAL CHARACTERISTICS

●XC9265Axxx Type, without C_Ldischarge function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

2.0

TYP.

-

MAX.

6.0

UNITS

CIRCUIT

Input Voltage

V_IN

-

V

①

Resistor connected with L_Xpin.

(*2)

Output Voltage

UVLO Release Voltage

UVLO Hysteresis Voltage

Supply Current

V_OUT(E)

Voltage which L_Xpin changes “L” to “H” level

while V_OUTis decreasing.

E1

1.8

V

②

③

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level

while V_INis increasing.

V_UVLO(E)

V_HYS(E)

Iq

1.65

0.11

1.95

0.24

V

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

V

_UVLO(E)- Voltage which L_Xpin changes “H” to “L”

level while V_INis decreasing.

V_IN=V_CE=V_OUT(T)+0.5V ^(*1)

V_IN=2.0V, if V_OUT(T)≦1.5V ^(*1)

0.15

E2

,

μA

V_OUT=V_OUT(T)+0.5V ^(*1), L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=0V.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=5.0V.

V_IN=V_CE=V_OUT(T)+2.0V ^(*1), I_OUT=10mA.

Standby Current

I_STB

I_LEAKH

I_LEAKL

I_PFM

-

0.1

330

1.0

400

μA

mA

③

①

L_XSW “H” Leak Current

L_XSW “L” Leak Current

PFM Switching Current

-

260

V_IN=V_OUT=V_OUT(Ｔ)×0.95V^(*1), V_CE=1.2V

Resistor connected with L_Xpin.

V_IN=V_CE=5.0V,

Maximum Duty Ratio ^(*3)

Efficiency ^(*4)

MAXDTY

EFFI

100

-

93

-

%

Ω

②

①

④

-

V

_OUT(T)=4.0V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=3.3V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=1.8V ^(*1), I_OUT=30mA.

Efficiency ^(*4)

EFFI

93

-

V

Efficiency ^(*4)

EFFI

87

-

0.65

-

V

LX SW “Pch”

ON Resistance ^(*5)

LX SW “Nch”

R_LXP

V_IN=V_CE=5.0V, V_OUT=0V, I_LX=100mA.

V_IN=V_CE=5.0V.

0.4

0.4 ^(*6)

R_LXN

Ω

ON Resistance

Output Voltage

Temperature

ΔV_OUT

/

-40℃≦Topr≦85℃.

-

±100

-

ppm/℃

②

⑤

(V_OUT・ΔTopr)

Characteristics

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level while

V_CE=0.2→1.5V.

CE “High” Voltage

CE “Low” Voltage

V_CEH

1.2

-

6.0

0.3

V

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “H” to “L” level while

V_CEL

GND

V

_CE=1.5→0.2V.

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_IN=V_CE=5.0V, V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

Resistor connected with L_Xpin.

-0.1

-

0.1

μA

⑤

Short Protection

V_SHORT

Voltage which L_Xpin changes “H” to “L” level while

0.4

0.5

0.6

V

②

Threshold Voltage

V

_OUT= V_OUT(T)+0.1V→0V^(*1)

.

Unless otherwise stated, VIN=VCE=5.0V

(*1) VOUT(T)=Nominal Output Voltage

(*2) VOUT(E)=Effective Output Voltage

The actual output voltage value V^OUT(E)is the PFM comparator threshold voltage in the IC.

Therefore, the DC/DC circuit output voltage, including the peripheral components, is boosted by the ripple voltage average value.

Please refer to the characteristic example.

^(*3)Not applicable to the products with V_OUT(T)< 2.15V since it is out of operational volatge range.

(*4) EFFI=[{ (Output Voltage)×(Output Current)] / [(Input Voltage)×(Input Current)}]×100

^(*5)LX SW “Pch” ON resistance = (V_IN– VLX pin measurement voltage) / 100mA

^(*6)Designed value

4/30

XC9265

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9265Bxxx Type, without C_Ldischarge function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

2.0

TYP.

-

MAX.

6.0

UNITS

CIRCUIT

Input Voltage

V_IN

-

V

①

Resistor connected with L_Xpin.

(*2)

Output Voltage

UVLO Release Voltage

UVLO Hysteresis Voltage

Supply Current

V_OUT(E)

Voltage which L_Xpin changes “L” to “H” level

while V_OUTis decreasing.

E1

1.8

V

②

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level

while V_INis increasing.

V_UVLO(E)

V_HYS(E)

Iq

1.65

0.11

1.95

0.24

V

②

③

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

V

_UVLO(E)- Voltage which L_Xpin changes “H” to “L”

level while V_INis decreasing.

V_IN=V_CE=V_OUT(T)+0.5V ^(*1)

V_IN=2.0V, if V_OUT(T)≦1.5V ^(*1)

0.15

E2

,

μA

V_OUT=V_OUT(T)+0.5V ^(*1), L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=0V.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=5.0V.

V_IN=V_CE=V_OUT(T)+2.0V ^(*1), I_OUT=10mA.

Standby Current

I_STB

I_LEAKH

I_LEAKL

I_PFM

-

0.1

180

1.0

250

μA

mA

③

①

L_XSW “H” Leak Current

L_XSW “L” Leak Current

PFM Switching Current

-

115

V_IN=V_OUT=V_OUT(Ｔ)×0.95V^(*1), V_CE=1.2V

Resistor connected with L_Xpin.

V_IN=V_CE=5.0V,

Maximum Duty Ratio ^(*3)

Efficiency ^(*4)

MAXDTY

EFFI

100

-

95

-

%

Ω

②

①

④

-

V

_OUT(T)=4.0V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=3.3V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=1.8V ^(*1), I_OUT=30mA.

Efficiency ^(*4)

EFFI

95

-

V

Efficiency ^(*4)

EFFI

89

-

0.65

-

V

LX SW “Pch”

ON Resistance ^(*5)

LX SW “Nch”

R_LXP

V_IN=V_CE=5.0V, V_OUT=0V, I_LX=100mA.

V_IN=V_CE=5.0V.

0.4

0.4 ^(*6)

R_LXN

Ω

ON Resistance

Output Voltage

Temperature

ΔV_OUT

/

-40℃≦Topr≦85℃.

-

±100

-

ppm/℃

②

⑤

(V_OUT・ΔTopr)

Characteristics

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level while

V_CE=0.2→1.5V.

CE “High” Voltage

CE “Low” Voltage

V_CEH

1.2

-

6.0

0.3

V

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “H” to “L” level while

V_CEL

GND

V

_CE=1.5→0.2V.

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_IN=V_CE=5.0V, V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

Resistor connected with L_Xpin.

-0.1

-

0.1

μA

⑤

Short Protection

V_SHORT

Voltage which L_Xpin changes “H” to “L” level while

0.4

0.5

0.6

V

②

Threshold Voltage

V

_OUT= V_OUT(T)+0.1V→0V^(*1)

.

Unless otherwise stated, VIN=VCE=5.0V

(*1) VOUT(T)=Nominal Output Voltage

(*2) VOUT(E)=Effective Output Voltage

The actual output voltage value V^OUT(E)is the PFM comparator threshold voltage in the IC.

Therefore, the DC/DC circuit output voltage, including the peripheral components, is boosted by the ripple voltage average value.

Please refer to the characteristic example.

^(*3)Not applicable to the products with V_OUT(T)< 2.15V since it is out of operational volatge range.

(*4) EFFI=[{ (Output Voltage)×(Output Current)] / [(Input Voltage)×(Input Current)}]×100

^(*5)LX SW “Pch” ON resistance = (V_IN– VLX pin measurement voltage) / 100mA

^(*6)Designed value

5/30

XC9265 series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9265CxxxType、with C_LDischarge Function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

2.0

TYP.

-

MAX.

6.0

UNITS

V

CIRCUIT

Input Voltage

V_IN

-

①

Resistor connected with L_Xpin.

(*2)

Output Voltage

UVLO Release Voltage

UVLO Hysteresis Voltage

Supply Current

V_OUT(E)

Voltage which L_Xpin changes “L” to “H” level

while V_OUTis decreasing.

E1

1.8

V

②

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level

while V_INis increasing.

V_UVLO(E)

V_HYS(E)

Iq

1.65

0.11

1.95

0.24

②

③

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

V

_UVLO(E)- Voltage which L_Xpin changes “H” to “L”

level while V_INis decreasing.

V_IN=V_CE=V_OUT(T)+0.5V ^(*1)

V_IN=2.0V, if V_OUT(T)≦1.5V ^(*1)

0.15

E2

V

,

μA

V_OUT=V_OUT(T)+0.5V ^(*1), L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=0V.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=5.0V.

V_IN=V_CE=V_OUT(T)+2.0V ^(*1), I_OUT=10mA.

Standby Current

I_STB

I_LEAKH

I_LEAKL

I_PFM

-

0.1

330

1.0

400

μA

mA

③

①

L_XSW “H” Leak Current

L_XSW “L” Leak Current

PFM Switching Current

-

260

V_IN=V_OUT=V_OUT(Ｔ)×0.95V^(*1), V_CE=1.2V

Resistor connected with L_Xpin.

V_IN=V_CE=5.0V,

Maximum Duty Ratio ^(*3)

Efficiency ^(*4)

MAXDTY

EFFI

100

-

93

-

%

Ω

②

①

④

-

V

_OUT(T)=4.0V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=3.3V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=1.8V ^(*1), I_OUT=30mA.

Efficiency ^(*4)

EFFI

93

-

V

Efficiency ^(*4)

EFFI

87

-

0.65

-

V

LX SW “Pch”

ON Resistance ^(*5)

LX SW “Nch”

R_LXP

V_IN=V_CE=5.0V, V_OUT=0V, I_LX=100mA.

V_IN=V_CE=5.0V.

0.4

0.4 ^(*6)

R_LXN

Ω

ON Resistance

Output Voltage

Temperature

ΔV_OUT

/

-40℃≦Topr≦85℃.

-

±100

-

ppm/℃

②

⑤

(V_OUT・ΔTopr)

Characteristics

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level while

V_CE=0.2→1.5V.

CE “High” Voltage

CE “Low” Voltage

V_CEH

1.2

-

6.0

0.3

V

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “H” to “L” level while

V_CEL

GND

V

_CE=1.5→0.2V.

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_IN=V_CE=5.0V, V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

Resistor connected with L_Xpin.

-0.1

-

0.1

μA

⑤

Short Protection

V_SHORT

Voltage which L_Xpin changes “H” to “L” level while

0.4

55

0.5

80

0.6

V

②

③

Threshold Voltage

V

_OUT= V_OUT(T)+0.1V→0V^(*1)

V_IN=V_OUT=5.0V, V_CE=0V, L_X=Open.

.

C_LDischarge

R_DCHG

105

Ω

Unless otherwise stated, VIN=VCE=5.0V

(*1) VOUT(T)=Nominal Output Voltage

(*2) VOUT(E)=Effective Output Voltage

The actual output voltage value V^OUT(E)is the PFM comparator threshold voltage in the IC.

Therefore, the DC/DC circuit output voltage, including the peripheral components, is boosted by the ripple voltage average value.

Please refer to the characteristic example.

^(*3)Not applicable to the products with V_OUT(T)< 2.15V since it is out of operational volatge range.

^(*4)EFFI=[{ (Output Voltage)×(Output Current)] / [(Input Voltage)×(Input Current)}]×100

^(*5)LX SW “Pch” ON resistance = (V_IN– VLX pin measurement voltage) / 100mA

^(*6)Designed value

6/30

XC9265

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9265Dxxx Type, with C_LDischarge function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

2.0

TYP.

-

MAX.

6.0

UNITS

V

CIRCUIT

Input Voltage

V_IN

-

①

Resistor connected with L_Xpin.

(*2)

Output Voltage

UVLO Release Voltage

UVLO Hysteresis Voltage

Supply Current

V_OUT(E)

Voltage which L_Xpin changes “L” to “H” level

while V_OUTis decreasing.

E1

1.8

V

②

③

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level

while V_INis increasing.

V_UVLO(E)

V_HYS(E)

Iq

1.65

0.11

1.95

0.24

V_CE=V_IN, V_OUT=0V. Resistor connected with L_Xpin.

V

_UVLO(E)- Voltage which L_Xpin changes “H” to “L”

level while V_INis decreasing.

V_IN=V_CE=V_OUT(T)+0.5V ^(*1)

V_IN=2.0V, if V_OUT(T)≦1.5V ^(*1)

0.15

E2

V

,

μA

V_OUT=V_OUT(T)+0.5V ^(*1), L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=0V.

V_IN=5.0V, V_CE=V_OUT=0V, V_LX=5.0V.

V_IN=V_CE=V_OUT(T)+2.0V ^(*1), I_OUT=10mA.

Standby Current

I_STB

I_LEAKH

I_LEAKL

I_PFM

-

0.1

180

1.0

250

μA

mA

③

①

L_XSW “H” Leak Current

L_XSW “L” Leak Current

PFM Switching Current

-

115

V_IN=V_OUT=V_OUT(Ｔ)×0.95V^(*1), V_CE=1.2V

Resistor connected with L_Xpin.

V_IN=V_CE=5.0V,

Maximum Duty Ratio ^(*3)

Efficiency ^(*4)

MAXDTY

EFFI

100

-

95

-

%

Ω

②

①

④

-

V

_OUT(T)=4.0V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=3.3V ^(*1), I_OUT=30mA.

V_IN=V_CE=3.6V,

_OUT(T)=1.8V ^(*1), I_OUT=30mA.

Efficiency ^(*4)

EFFI

95

-

V

Efficiency ^(*4)

EFFI

89

-

0.65

-

V

LX SW “Pch”

ON Resistance ^(*5)

LX SW “Nch”

R_LXP

V_IN=V_CE=5.0V, V_OUT=0V, I_LX=100mA.

V_IN=V_CE=5.0V.

0.4

0.4 ^(*6)

R_LXN

Ω

ON Resistance

Output Voltage

Temperature

ΔV_OUT

/

-40℃≦Topr≦85℃.

-

±100

-

ppm/℃

②

⑤

(V_OUT・ΔTopr)

Characteristics

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “L” to “H” level while

V_CE=0.2→1.5V.

CE “High” Voltage

CE “Low” Voltage

V_CEH

1.2

-

6.0

0.3

V

V_OUT=0V. Resistor connected with L_Xpin.

Voltage which L_Xpin changes “H” to “L” level while

V_CEL

GND

V

_CE=1.5→0.2V.

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_IN=V_CE=5.0V, V_OUT=0V, L_X=Open.

V_IN=5.0V, V_CE=V_OUT=0V, L_X=Open.

Resistor connected with L_Xpin.

-0.1

-

0.1

μA

⑤

Short Protection

V_SHORT

Voltage which L_Xpin changes “H” to “L” level while

0.4

55

0.5

80

0.6

V

②

③

Threshold Voltage

V

_OUT= V_OUT(T)+0.1V→0V^(*1)

V_IN=V_OUT=5.0V, V_CE=0V, L_X=Open.

.

C_LDischarge

R_DCHG

105

Ω

Unless otherwise stated, VIN=VCE=5.0V

(*1) VOUT(T)=Nominal Output Voltage

(*2) VOUT(E)=Effective Output Voltage

The actual output voltage value V^OUT(E)is the PFM comparator threshold voltage in the IC.

Therefore, the DC/DC circuit output voltage, including the peripheral components, is boosted by the ripple voltage average value.

Please refer to the characteristic example.

^(*3)Not applicable to the products with V_OUT(T)< 2.15V since it is out of operational volatge range.

^(*4)EFFI=[{ (Output Voltage)×(Output Current)] / [(Input Voltage)×(Input Current)}]×100

(*5) LX SW “Pch” ON resistance = (V_IN– VLX pin measurement voltage) / 100mA

^(*6)Designed value

7/30

XC9265 series

■ELECTRICAL CHARACTERISTICS (Continued)

XC9265 series voltage chart

SYMBOL

PARAMETER

UNITS: V

E1

E2

Output Voltage

UNITS: V

Supply Current

UNITS: μA

OUTPUT

MIN.

MAX.

TYP.

MAX.

VOLTAGE

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

2.75

2.80

2.85

0.980

1.029

1.078

1.127

1.176

1.225

1.274

1.323

1.372

1.421

1.470

1.519

1.568

1.617

1.666

1.715

1.764

1.813

1.862

1.911

1.960

2.009

2.058

2.107

2.156

2.205

2.254

2.303

2.352

2.401

2.450

2.499

2.548

2.597

2.646

2.695

2.744

2.793

1.020

1.071

1.122

1.173

1.224

1.275

1.326

1.377

1.428

1.479

1.530

1.581

1.632

1.683

1.734

1.785

1.836

1.887

1.938

1.989

2.040

2.091

2.142

2.193

2.244

2.295

2.346

2.397

2.448

2.499

2.550

2.601

2.652

2.703

2.754

2.805

2.856

2.907

0.5

0.8

0.5

0.9

0.6

1.1

0.7

1.5

8/30

XC9265

Series

■ELECTRICAL CHARACTERISTICS (Continued)

XC9265 series voltage chart

SYMBOL

PARAMETER

UNITS: V

E1

E2

Output Voltage

UNITS: V

Supply Current

UNITS: μA

OUTPUT

MIN.

MAX.

TYP.

MAX.

VOLTAGE

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

3.65

3.70

3.75

3.80

3.85

3.90

3.95

4.00

2.842

2.891

2.940

2.989

3.038

3.087

3.136

3.185

3.234

3.283

3.332

3.381

3.430

3.479

3.528

3.577

3.626

3.675

3.724

3.773

3.822

3.871

3.920

2.958

3.009

3.060

3.111

3.162

3.213

3.264

3.315

3.366

3.417

3.468

3.519

3.570

3.621

3.672

3.723

3.774

3.825

3.876

3.927

3.978

4.029

4.080

0.7

1.5

0.8

2.1

1.5

3.0

9/30

XC9265 series

■TEST CIRCUITS

10/30

XC9265

Series

■TYPICAL APPLICATION CIRCUIT

L

V_IN

V_OUT

V_IN

CE

L_X

C_IN

(Ceramic)

C_L

(Ceramic)

V_OUT

GND

【Typical Examples】

MANUFACTURE

PRODUCT NUMBER

VALUE

TDK

VLF302512M-100M

LPS3015-103MRB

1239AS-H-100M

LMK107BJ106MA

JMK107BJ226MA

10μH

L

Coilcraft

TOKO

C_IN

C_L

TAIYO YUDEN

10μF/10V

22μF/6.3V

* Take capacitance loss, withstand voltage, and other conditions into consideration when selecting components.

* Characteristics are dependent on deviations in the coil inductance value. Test fully using the actual device.

* A value of 10μH is recommended for the coil inductance.

* If a tantalum or electrolytic capacitor is used for the load capacitance C_L, ripple voltage will increase, and there is a possibility that operation will

become unstable. Test fully using the actual device.

11/30

XC9265 series

■OPERATIONAL EXPLANATION

The XC9265 series consists of a reference voltage supply, PFM comparator, Pch driver Tr, Nch synchronous rectification switch Tr, current

sensing circuit, PFM control circuit, CE control circuit, and others. (Refer to the block diagram below.)

XC9265Axxx/XC9265Bxxx

XC9265Cxxx/XC9265xxx

An ultra-low quiescent current circuit and synchronous rectification enable a significant reduction of dissipation in the IC, and the IC operates with

high efficiency at both light loads and heavy loads. Current limit PFM is used for the control method, and even when switching current

superposition occurs, increases of output voltage ripple are suppressed, allowing use over a wide voltage and current range. The IC is compatible

with low-capacitance ceramic capacitors, and a small, high-performance step-down DC-DC converter can be created.

The actual output voltage V_OUT(E)in the electrical characteristics is the threshold voltage of the PFM comparator in the block diagram. Therefore

the average output voltage of the step-down circuit, including peripheral components, depends on the ripple voltage. Before use, test fully using

the actual device.

V_IN=V_CE=3.6V

V

=1.8V

I

=5mA L=10μH C =22uF Ta=25

V_IN=V_CE=3.6V

V

=1.8V

I

=30mA L=10μH C =22uF Ta=25

、、、 ℃

OUT L

、

℃

、

OUT

L

OUT

V_LX

V_LX: 2[V/div]

V_OUT

V_OUT: 50[mV/div]

V_OUT(E)

Voltage

I_LX

I_PFM

I_LX: 100[mA/div]

10[μs/div ]

10[μs/div]

Reference voltage for stabilization of the output voltage of the IC.

(1) The feedback voltage (FB voltage) is the voltage that results from dividing the output voltage with the IC internal dividing resistors R_FB1and

_FB2. The PFM comparator compares this FB voltage to V_REF. When the FB voltage is lower than V_REF, the PFM comparator sends a signal to the

R

buffer driver through the PFM control circuit to turn on the Pch driver Tr. When the FB voltage is higher than V_REF, the PFM comparator sends a

signal to prevent the Pch driver Tr from turning on.

(2) When the Pch driver Tr is on, the current sense circuit monitors the current that flows through the Pch driver Tr connected to the Lx pin. When the

current reaches the set PFM switching current (I_PFM), the current sense circuit sends a signal to the buffer driver through the PFM control circuit. This

signal turns off the Pch driver Tr and turns on the Nch synchronous rectification switch Tr.

(3) The on time (off time) of the Nch synchronous rectification switch Tr is dynamically optimized inside the IC. After the off time elapses and the

PFM comparator detects that the V_OUTvoltage is higher than the set voltage, the PFM comparator sends a signal to the PFM control circuit that

prevents the Pch driver Tr from turning on. However, if the V_OUTvoltage is lower than the set voltage, the PFM comparator starts Pch driver Tr on.

12/30

XC9265

Series

■OPERATIONAL EXPLANATION (Continued)

By continuously adjusting the interval of the linked operation of (1), (2) and (3) above in response to the load current, the output voltage is

stabilized with high efficiency from light loads to heavy loads.

The PFM switching current monitors the current that flows through the Pch driver Tr, and is a value that limits the Pch driver Tr current.

The Pch driver Tr remains on until the coil current reaches the PFM switching current (I_PFM). An approximate value for this on-time t_ONcan be

calculated using the following equation:

t_ON= L × I_PFM/ (V_IN– V_OUT

)

To avoid excessive ripple voltage in the event that the coil current does not reach the PFM switching current within a certain interval even though

the Pch driver Tr has turned on and the FB voltage is above V_REF, the Pch driver Tr can be turned off at any timing using the maximum on-time

function of the PFM control circuit. If the Pch driver Tr turns off by the maximum on-time function instead of the current sense circuit, the Nch

synchronous rectification switch Tr will not turn on and the coil current will flow to the V_OUTpin by means of the parasite diode of the Nch

synchronous rectification switch Tr.

When the V_INvoltage is lower than the output voltage, through mode automatically activates and the Pch driver Tr stays on continuously.

(1) In through mode, when the load current is increased and the current that flows through the Pch driver Tr reaches a load current that is several tens

of mA lower than the set PFM switching current (I_PFM), the current sense circuit sends a signal through the PFM control circuit to the buffer driver. This

signal turns off the Pch driver Tr and turns on the Nch synchronous rectification switch Tr.

(2) After the on-time (off-time) of the Nch synchronous rectification switch Tr, the Pch driver Tr turns on until the current reaches the set PFM

switching current (I_PFM) again.

If the load current is large as described above, operations (1) and (2) above are repeated. If the load current is several tens of mA lower than the

PFM switching current (I_PFM), the Pch driver Tr stays on continuously.

<V_INstart mode>

When the V_INvoltage rises, V_INstart mode stops the short-circuit protection function during the interval until the FB voltage approaches V_REF. After

the V_INvoltage rises and the FB voltage approaches V_REFby step-down operation, V_INstart mode is released. In order to prevent an excessive

rush current while V_INstart mode is activated, the coil current flows to the V_OUTpin by means of the parasitic diode of the Nch synchronous

rectification Tr. In V_INstart mode as well, the coil current is limited by the PFM switching current.

<Short-circuit protection function>

The short-circuit protection function monitors the V_OUTvoltage. In the event that the V_OUTpin is accidentally shorted to GND or an excessive load

current causes the V_OUTvoltage to drop below the set short-circuit protection voltage, the short-circuit protection function activates, and turns off

and latches the Pch driver Tr at any selected timing. Once in the latched state, the IC is turned off and then restarted from the CE pin, or operation

is started by re-applying the V_INvoltage.

When the V_INpin voltage drops below the UVLO detection voltage, the IC stops switching operation at any selected timing, turns off the Pch driver

Tr and Nch synchronous rectification switch Tr (UVLO mode). When the V_INpin voltage recovers and rises above the UVLO release voltage, the

IC restarts operation.

<C_Ldischarge function>

On the XC9265 series, a C_Ldischarge function is available as an option (XC9265C/XC9265D types). This function enables quick discharging of

the C_Lload capacitance when “L” voltage is input into the CE pin by the Nch Tr connected between the V_OUT-GND pins, or in UVLO mode. This

prevents malfunctioning of the application in the event that a charge remains on C_Lwhen the IC is stopped. The discharge time is determined by

C_Land the C_Ldischarge resistance R_DCHG, including the Nch Tr (refer to the diagram below). Using this time constant τ= C_L×R_DCHG, the

discharge time of the output voltage is calculated by means of the equation below.

V = V_OUT× e ^{- t /τ}, or in terms of t, t = τIn(V_OUT/ V)

V: Output voltage after discharge

V_OUT: Set output voltage

ｔ: Discharge time

C_L: Value of load capacitance (C_L)

R_DCHG: Value of C_Ldischarge resistance Varies by power supply voltage.

τ: C_L× R_DCHG

The C_Ldischarge function is not available on the XC9265A/XC9265B types.

13/30

XC9265 series

■NOTE ON USE

1. Be careful not to exceed the absolute maximum ratings for externally connected components and this IC.

2. The DC/DC converter characteristics greatly depend not only on the characteristics of this IC but also on those of externally connected

components, so refer to the specifications of each component and be careful when selecting the components. Be especially careful of the

characteristics of the capacitor used for the load capacity C_Land use a capacitor with B characteristics (JIS Standard) or an X7R/X5R (EIA

Standard) ceramic capacitor.

3. Use a ground wire of sufficient strength. Ground potential fluctuation caused by the ground current during switching could cause the IC

operation to become unstable, so reinforce the area around the GND pin of the IC in particular.

4. Mount the externally connected components in the vicinity of the IC. Also use short, thick wires to reduce the wire impedance.

5. When the voltage difference between V_INand V_OUTis small, switching energy increases and there is a possibility that the ripple voltage will be

too large. Before use, test fully using the actual device.

6. The CE pin does not have an internal pull-up or pull-down, etc. Apply the prescribed voltage to the CE pin.

7. If other than the recommended inductance and capacitance values are used, excessive ripple voltage or a drop in efficiency may result.

8. If other than the recommended inductance and capacitance values are used, a drop in output voltage when the load is excessive may cause

the short-circuit protection function to activate. Before use, test fully using the actual device.

9. At high temperature, excessive ripple voltage may occur and cause a drop in output voltage and efficiency. Before using at high temperature,

test fully using the actual device

10. At light loads or when IC operation is stopped, leakage current from the Pch driver Tr may cause the output voltage to rise.

11. The average output voltage may vary due to the effects of output voltage ripple caused by the load current. Before use, test fully using the

actual device.

12. If the C_Lcapacitance or load current is large, the output voltage rise time will lengthen when the IC is started, and coil current overlay may

occur during the interval until the output voltage reaches the set voltage (refer to the diagram below).

X

C

9

2

6

5

A

A series V =V =0 6.0V V =1.0V I

=200mA L=10μH C =22uF Ta=25

、、、 ℃

OUT L

シリーズ、

→

、

IN

CE

OUT

V_LX

V_LX: 10[V/div ]

I_PFM

I_LX

I_L: 200[mA/div]

V_OUT: 1[V/div ]

V_OUT

V_IN

V

_IN: 5[V/div ]

Zoom

200[μs/div ]

V_LX

I_LX

V_LX: 10[V/div ]

I_L: 200[mA/div ]

V_OUT

V_IN

V_OUT: 1[V/div ]

V_IN: 5[V/div]

5[μs/div ]

13. When the IC is started, the short-circuit protection function does not operate during the interval until the V_OUTvoltage reaches a value near the

set voltage.

14. If the IC is started at a V_INvoltage that activates through mode, it is possible that the short-circuit protection function will not operate. Before

use, test fully using the actual device.

15. If the load current is excessively large when the IC is started, it is possible that the V_OUTvoltage will not rise to the set voltage. Before use, test

fully using the actual device.

14/30

XC9265

Series

■NOTE ON USE (Continued)

16. In actual operation, the maximum on-time depends on the peripheral components, input voltage, and load current. Before use, test fully using

the actual device.

17. When the V_INvoltage is turned on and off continuously, excessive rush current may occur while the voltage is on. Before use, test fully using

the actual device.

18. When the V_INvoltage is high, the Pch driver may change from on to off before the coil current reaches the PFM switching current (I_PFM), or

before the maximum on-time elapses. Before use, test fully using the actual device.

19. When the IC change to the Through Mode at light load, the supply current of this IC can increase in some cases.

20. For temporary, transitional voltage drop or voltage rising phenomenon, the IC is liable to malfunction should the ratings be exceeded.

21. 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.

22. The UVLO function can be activated when the UVLO hysteresis width gets to about 0mV and after several tens ms elapses at light loads.

Before use, test fully using the actual device.

15/30

XC9265 series

■NOTE ON USE (Continued)

●Instructions of pattern layouts

1. To suppress fluctuations in the V_INpotential, connect a bypass capacitor (C_IN) in the shortest path between the V_INpin and ground 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 ground 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. Internal driver transistors bring on heat because of the transistor current and ON resistance of the driver transistors.

●Recommended Pattern Layout (USP-6EL)

Top view

Bottom view

●Recommended Pattern Layout (SOT-25)

Top view

Bottom view

16/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1) Efficiency vs. Output Current

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

100

80

60

40

20

0

100

80

60

40

20

0

V_IN=2.7V

V_IN=4.2V

V_IN=3.6V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

100

80

60

40

20

0

100

80

60

40

20

0

V_IN=4.2V

V_IN=3.6V

V_IN=4.2V

V_IN=3.6V

V_IN=2.7V

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

100

80

60

40

20

0

100

80

60

40

20

0

V_IN=4.2V

V_IN=3.6V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

17/30

XC9265 series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(1) Efficiency vs. Output Current (Continued)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

100

80

60

40

20

0

100

80

60

40

20

0

V_IN=4.2V

V_IN=3.6V

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

(2) Output Voltage vs. Output Current

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

2.2

2.0

1.8

1.6

1.4

1.2

2.2

2.0

1.8

1.6

1.4

1.2

V_IN=2.7V,3.6V,4.2V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

2.2

2.0

1.8

1.6

1.4

1.2

2.2

2.0

1.8

1.6

1.4

1.2

V_IN=2.7V,3.6V,4.2V

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

18/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(2) Output Voltage vs. Output Current (Continued)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

C_L=44μF(JMK107BJ226MA×2)

3.4

3.2

3.0

2.8

2.6

2.4

3.4

3.2

3.0

2.8

2.6

2.4

V_IN=3.6V,4.2V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

3.4

3.2

3.0

2.8

2.6

2.4

3.4

3.2

3.0

2.8

2.6

2.4

V_IN=3.6V,4.2V

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

(3) Ripple Voltage vs. Output Current

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

300

250

200

150

100

50

300

250

200

150

100

50

V_IN=4.2V

V_IN=3.6V

V_IN=2.7V

V_IN=3.6V

V_IN=2.7V

V_IN=4.2V

0

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

19/30

XC9265 series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(3) Ripple Voltage vs. Output Current (Continued)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

300

250

200

150

100

50

300

250

200

150

100

50

V_IN=2.7V,3.6V,4.2V

V_IN=4.2V

V_IN=3.6V

V_IN=2.7V

0

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

300

250

200

150

100

50

300

250

200

150

100

50

V_IN=4.2V

V_IN=3.6V

V_IN=4.2V

V_IN=3.6V

0

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

300

250

200

150

100

50

300

250

200

150

100

50

V_IN=4.2V

V_IN=3.6V

V_IN=4.2V

V_IN=3.6V

0

0.01

0.1

1

10

100

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

20/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) Output Voltage Vs. Ambient Temperature

XC9265x301

XC9265x181

3.3

3.2

3.1

3.0

2.9

2.8

2.7

2.1

2.0

1.9

1.8

1.7

1.6

1.5

V_IN=5.0V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

(5) Supply Current vs. Ambient Temperature

XC9265x301

XC9265x181

3.0

2.5

2.0

1.5

1.0

0.5

0.0

V_IN=2.3V

V_IN=3.5V

2.5

2.0

1.5

1.0

0.5

0.0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

(6) Stand-by Current vs. Ambient Temperature

XC9265x301

XC9265x181

3.0

2.5

2.0

1.5

1.0

0.5

0.0

3.0

V_ＩＮ=5.0V,3.6V,2.3V

V_ＩＮ=5.0V,3.6V

2.5

2.0

1.5

1.0

0.5

0.0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

21/30

XC9265 series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(7) UVLO Release Voltage vs. Ambient Temperature

XC9265x181

XC9265x301

2.00

1.95

1.90

1.85

1.80

1.75

1.70

1.65

1.60

2.00

1.95

1.90

1.85

1.80

1.75

1.70

1.65

1.60

V_{RELEASE (T)}=1.8V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

(8) PFM Switching Current vs. Ambient Temperature

XC9265A181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265A301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

600

500

400

300

200

100

0

600

V_IN=5.0V,3.6V

500

V_IN=2.3V

400

300

200

100

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

XC9265B181

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B301

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

500

400

300

200

100

0

500

400

300

200

100

0

V_IN=5.0V

V_IN=3.6V

V_IN=5.0V

V_IN=3.6V

V_IN=2.3V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

22/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(9) Maximum Frequency vs. Ambient Temperature

XC9265A101

L=10μH(VLF302512M-100M),CIN=10μF(LMK107BBJ106MA),

CL=22μF(JMK107BJ226MA)

XC9265A251

L=10μH(VLF302512M-100M),CIN=10μF(LMK107BBJ106MA),

CL=22μF(JMK107BJ226MA)

3,000

2,500

2,000

1,500

1,000

500

3,000

2,500

2,000

1,500

1,000

500

V_IN=5.0V

V_IN=4.2V

V_IN=5.0V

V_IN=3.6V

V_IN=2.7V

V_IN=2.0V

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

XC9265A401

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

XC9265B101

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

3,000

2,500

2,000

1,500

1,000

500

3,000

2,500

2,000

1,500

1,000

500

V_IN=6.0V

V_IN=5.0V

V_IN=3.6V

V_IN=5.5V

V_IN=5.0V

V_IN=2.7V

V_IN=2.0V

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

XC9265B401

XC9265B251

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

3,000

2,500

2,000

1,500

1,000

500

3,000

2,500

2,000

1,500

1,000

500

V_IN=6.0V

V_IN=5.0V

V_IN=4.2V

V_IN=3.6V

V_IN=5.5V

V_IN=5.0V

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta(

)

℃

Ambient Temperature: Ta(

)

℃

23/30

XC9265 series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(10) Pch Driver ON Resistance vs. Ambient Temperature

(11) Nch Driver ON Resistance vs. Ambient Temperature

XC9265

V_IN=V_CE,V_OUT=0V,I_LX=100mA

V_IN=V_CE

1.2

1.0

0.8

0.6

0.4

0.2

0.0

1.0

0.8

0.6

0.4

0.2

0.0

Topr=85

℃

Topr=85

℃

Topr=25

℃

Topr=25

℃

Topr=-40

℃

Topr=-40

℃

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Input Voltage : V_IN(V)

(12) Lx SW "H" Leakage Current vs. Ambient Temperature

(13) Lx SW "L" Leakage Current vs. Ambient Temperature

XC9265

V_OUT=V_CE=0V,V_LX=0V

V_OUT=V_CE=0V,V_LX=5.0V

3.0

V_IN=5.0V

2.5

2.0

1.5

1.0

0.5

0.0

2.0

1.5

1.0

0.5

0.0

-50

-25

0

25

50

)

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

(14) CE "High" Voltage vs. Ambient Temperature

(15) CE "Low" Voltage vs. Ambient Temperature

XC9265

1.0

0.8

0.6

V_IN=5.0V

V_IN=3.6V

0.4

0.2

0.0

V_IN=2.0V

0.2

0.0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Ambient Temperature: Ta (

)

℃

24/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(16) CL Discharge vs. Ambient Temperature

(17) Short Protection Thrreshold vs. Ambient Temperature

XC9265C/D

XC9265

V_IN=V_OUT,V_CE=0V

V_IN=V_CE

600

1.0

0.8

0.6

0.4

0.2

0.0

V_IN=5.0V,3.6V,2.0V

500

400

300

V_IN=6.0V

V_IN=4.0V

V_IN=2.0V

200

100

0

-50

-25

0

25

50

℃

75

100

-50

-25

0

25

50

℃

75

100

Ambient Temperature: Ta (

)

Ambient Temperature: Ta (

)

(18) Rising Output Voltage

XC9265A181

V_IN=V_CE=0 3.6V,I_OUT=10uA

V_IN=V_CE=0 3.6V,I_OUT=100mA

→

V_OUT

V_IN

V_LX

I_Lx

V_OUT:1V/div,V_IN:5V/div,V_LX:2V/div,I_LX:500mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

V_OUT:1V/div,V_IN:5V/div,V_LX:2V/div,I_LX:500mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265B181

XC9265B181x

XC9265B181

V_IN=V_CE=0 3.6V,I_OUT=10uA

→

V_IN=V_CE=0 3.6V,I_OUT=50mA

→

V_OUT

V_IN

V_LX

I_Lx

V_OUT:1V/div,V_IN:5V/div,V_LX:2V/div,I_LX:500mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

V_OUT:1V/div,V_IN:5V/div,V_LX:2V/div,I_LX:500mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BBJ106MA),

C_L=22μF(JMK107BJ226MA)

25/30

XC9265 series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(19) Load Transient Response

XC9625A301

XC9265A301

V_IN=3.6V, I_OUT=10uA 100mA

→

V_IN=3.6V I_OUT=10uA 100mA

→

V_OUT

V_LX

I_Lx

I_out

V_OUT:200mV/div,I_OUT:100mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

V_OUT:200mV/div,I_OUT:100mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

XC9265B301

V_IN=3.6V, I_OUT=10uA 50mA

→

V_IN=3.6V, I_OUT=10uA 50mA

→

V_OUT

V_LX

I_Lx

I_out

V_OUT:200mV/div,I_OUT:50mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

V_OUT:200mV/div,I_OUT:50mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

XC9265A181

V_IN=3.6V, I_OUT=10uA 100mA

→

V_IN=3.6V I_OUT=10uA 100mA

→

V_OUT

V_LX

I_Lx

I_out

V_OUT:100mV/div,I_OUT:100mA/div,V_LX:5V/div,_ILX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

V_OUT:100mV/div,I_OUT:100mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

26/30

XC9265

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(19) Load Transient Response (Continued)

XC9265B181

V_IN=3.6V I_OUT=10uA 50mA

→

V_IN=3.6V I_OUT=10uA 50mA

→

V_OUT

V_LX

I_Lx

I_out

V_OUT:100mV/div,I_OUT:50mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=44μF(JMK107BJ226MA×2)

V_OUT:100mV/div,I_OUT:50mA/div,V_LX:5V/div,I_LX:200mA/div,Time:100μs/div

L=10μH(VLF302512M-100M),C_IN=10μF(LMK107BJ106MA),

C_L=22μF(JMK107BJ226MA)

27/30

XC9265 series

■PACKAGING INFORMATION

●SOT-25 (unit: mm)

●USP-6EL (unit: mm)

1.8±0.05

1PIN INDENT

0.3±0.05

1

2

3

A part of the pin may appear from

※構造上、端子の一部がパッケージ側面よ

6

5

4

(0.55）

り露出する場合があります。

the side of the package because of

1.5±0.05

its structure.

●USP-6EL Reference Pattern Layout (unit: mm)

●USP-6EL Reference Metal Mask Design (unit: mm)

28/30

XC9265

Series

■MARKING RULE

MARK① represents product series

SOT-25(Under dot仕様)

●SOT-25(Under dot)

MARK

C

PRODUCT SERIES

5

4

XC9265A/B/C/D*****-G

①

②

③

④

⑤

MARK② represents output voltage

PRODUCT SERIES

MARK

OUTPUT VOLTAGE

3.9 1.95 2.95 3.95

4.0 1.05 2.05 3.05

1

2

3

0

1

-

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

-

Zoom

1.0

-

拡大

2

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

-

1.15 2.15 3.15

1.25 2.25 3.25

1.35 2.35 3.35

1.45 2.45 3.45

1.55 2.55 3.55

1.65 2.65 3.65

1.75 2.75 3.75

1.85 2.85 3.85

3

-

4

-

XC9265A/B*****-G

5

-

6

-

7

8

-

●USP-6EL

USP-6EL

9

2.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

-

A

B

C

D

E

F

H

K

L

3.9

-

1.95 2.95 3.95

1

2

3

6

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

4.0 1.05 2.05 3.05

-

1.15 2.15 3.15

1.25 2.25 3.25

1.35 2.35 3.35

1.45 2.45 3.45

1.55 2.55 3.55

1.65 2.65 3.65

1.75 2.75 3.75

5

4

XC9265C/D*****-G

M

1.8

2.8

3.8

-

1.85 2.85 3.85

-

MARK③ represents output voltage range

OUTPUT

MARK

PRODUCT SERIES

VOLTAGE

A

B

C

D

E

F

1.0～1.8V

1.9～2.8V

2.9～3.8V

3.9～4.0V

1.0～1.8V

1.9～2.8V

2.9～3.8V

3.9～4.0V

1.05～1.85V

1.95～2.85V

2.95～3.85V

3.95V

XC9265A/C**1**-G

XC9265B/D**1**-G

XC9265A/C**B**-G

XC9265B/D**B**-G

H

K

P

R

S

T

U

V

X

Y

1.05～1.85V

1.95～2.85V

2.95～3.85V

3.95V

MARK④⑤ represents production lot number

01～09、0A～0Z、11～9Z、A1～A9、AA～AZ、B1～ZZ

(G, I, J, O, Q, W excluded and no character inversion used)

29/30

XC9265 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.

Semiconductor Ltd in writing in advance.

TOREX SEMICONDUCTOR LTD.

30/30


型号：	XC9265B38B4R-G
厂家：	Torex Semiconductor
描述：	Switching Regulator, 开关光电二极管
文件：	总30页 (文件大小：958K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XC9265B38B4R-G [TOREX]

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