XC9140A1824R-G_技术文档

XC9140 Series

ETR04015-003

Step-UpSynchronous PFM DC/DC Converter

☆GreenOperation Compatible

■GENERAL DESCRIPTION

The XC9140 series are step-up synchronous DC/DC converters that support ceramic capacitors and have an internal 0.6Ω

(TYP.) Nch driver transistor and an internal 0.65Ω (TYP.) Pch synchronous rectifier switch transistor. PFM control enables a low

quiescent current, making these products ideal for portable devices that require high efficiency.

When the output voltage is 3.3V and the load current is 1mA (XC9140Axx1 type and XC9140Cxx1 type), startup from an input

voltage of V_IN= 0.9V is possible which means that these products can be used in applications that start using a single alkaline or

nickel-metal hydride battery. The output voltage can be set from 1.8V to 5.0V (±2.0%) in steps of 0.1V.

The XC9140 features a load disconnect function to break continuity between the input and output at shutdown (XC9140A), and

also a bypass mode function to maintain continuity between the input and output (XC9140C).

A version with a UVLO (Under Voltage Lock-out) function is also available. This function enables the prevention of battery leakage

by stopping IC’s operation when the input voltage is low. The standard product has a UVLO release voltage of 2.15V (±3.0%), and a

custom version with a release voltage selectable from between 1.65V to 2.2V, in steps of 0.05V, is also available.

■FEATURES

Input Voltage Range

Output Voltage Setting

Output Current

■APPLICATIONS

:

0.9V~5.5V

●

Mouses, Keyboards

1.8V~5.0V (±2.0%) 0.1V increments

100mA＠V_OUT=3.3V, V_BAT=1.8V (TYP.)

0.6Ω Nch driver transistor

0.65Ω Pch synchronous rectifier switch transistor

6.3μA (V_BAT=V_OUT+0.5V)

PFM Control

Bluetooths

Household use Medical equipments

Remote controls

Driver Transistor

Game consoles

Devices with 1~3 Alkaline, 1~3 Nickel Hydride,

1 Lithium and 1 Li-ion

Supply Current

:

Control Method

High speed transient response

PFM Switching Current

Functions

50mV@V_OUT=3.3V, V_BAT=1.8V, I_OUT=1→50mA

350mA

Load Disconnection Function or

Bypass Mode Function

UVLO Function

Ceramic Capacitor

-40℃～+85℃

:

Operating Ambient Temperature

Packages

:

SOT-25, USP-6EL

EU RoHS Compliant, Pb Free

Environmentally Friendly

■TYPICAL APPLICATION CIRCUIT

■TYPICAL PERFORMANCE

CHARACTERISTICS

●Efficiency vs. Output Current

XC9140A331MR-G(V_OUT=3.3V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

100

L=4.7μH

2.5V

VOUT

LX

80

CL=10μF

3.0V

V_BAT=1.8V

60

40

20

0

CE

VIN=0.9～5.5V

VBAT

GND

C^C^IN=^IN1⁼0^4.μ^7μF^F

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

1/28

XC9140 Series

■BLOCK DIAGRAM

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

The XC9140A /XC9140C series do not have the C_Ldischarge function.

The XC9140Axx1/XC9140Cxx1 series do not have the UVLO function.

■PRODUCT CLASSIFICATION

●Ordering Information

XC9140①②③④⑤⑥-⑦

DESIGNATOR

ITEM

SYMBOL

DESCRIPTION

A

C

Load Disconnection Without C_LAuto Discharge

V_BATBypass Without C_LAuto Discharge

Output Voltage

(*1)

①

Product Type

Output Voltage

(*2)

②③

18～50

e.g. V_OUT=3.3V⇒②=3, ③=3

No UVLO

1

(*3)

④

UVLO Function

2

UVLO Function V_{UVLO_R}=2.15V

USP-6EL (3,000/Reel)

4R-G

(*4)

⑤⑥-⑦

Packages (Order Unit)

MR-G

SOT-25 (3,000/Reel)

^(*1)The product with the C_Ldischarge function is a semi-custom product.

(*2)

V

=3.3V is standard.

OUT

(*3)

The standard product has a UVLO release voltage of 2.15V. For other voltages, consult our sales department.

^(*4)The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.

2/28

XC9140 (Design Target)

■PIN CONFIGURATION

XC9140

Series

L_X

V_OUT

5

4

1

2

3

CE

GND V_BAT

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.6).

■PIN ASSIGNMENT

PIN NUMBER

PIN NAME

FUNCTIONS

USP-6EL SOT-25

1

5

L_X

Switching

Output Voltage

Power Input

Chip Enable

No Connection

Ground

2

3

4

5

6

4

3

1

-

V_OUT

V_BAT

CE

NC

2

GND

■CE PIN FUNCTION

PIN NAME

SIGNAL

STATUS

H

L

Active (All Series)

CE

Stand-by (XC9140A Series) or Bypass Mode (XC9140C Series)

* Please do not leave the CE pin open.

■ABSOLUTE MAXIMUM RATINGS

Ta=25˚C

PARAMETER

BAT Pin Voltage

L_XPin Voltage

V_OUTPin Voltage

CE Pin Voltage

L_XPin Current

SYMBOL

V_BAT

V_LX

RATINGS

-0.3 ~ +7.0

UNITS

V

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

V_OUT

V_CE

-0.3 ~ +7.0

V

-0.3 ~ +7.0

V

700

I_LX

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 should be either V_OUT+0.3 or +7.0 or in the lowest.

3/28

XC9140 Series

■ELECTRICAL CHARACTERISTICS

Ta=25˚C

CIRCUIT

-

●XC9140Axx1 Type, without UVLO function, without C_Ldischarge function

PARAMETER

Input Voltage

SYMBOL

V_BAT

CONDITIONS

MIN.

TYP.

-

MAX.

5.5

UNITS

V

-

V_PULL=1.5V, Voltage to start oscillation

while V_OUTis decreasing

I_OUT=1mA

(*2)

Output Voltage

V_OUT(E)

E1

V

①

Operation Start Voltage

Operation Hold Voltage

V_ST1

V_HLD

-

0.9

-

V

②

R_L=1kΩ

0.7

Oscillation stops,

Supply Current

Iq

E2

μA

③

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

V_BAT=V_LX=V_OUT(T)^(*1), V_OUT=V_CE=0V

Input Pin Current

Stand-by Current

L_XLeak Current

I_BAT

I_STB

I_LXL

-

0.25

0.1

1.0

μA

③

④

⑤

0.1

PFM Switching Current

Maximum ON Time

Efficiency ^(*3)

I_PFM

t_ONMAX

EFFI

I_OUT=3mA

295

3.1

-

350

4.6

81

405

6.0

-

mA

μs

%

②

①

②

V_PULL=1.5V, V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

V

_BAT=V_CE=1.8V, V_OUT(T)^(*1)=2.5V,

_OUT=30mA

_BAT=V_CE=1.8V, V_OUT(T)^(*1)=3.3V,

_OUT=30mA

_BAT=V_CE=1.8V, V_OUT(T)^(*1)=5.0V,

_OUT=30mA

I

V

Efficiency ^(*3)

EFFI

R_LXP

R_LXN

-

85

86

-

%

Ω

②

⑦

⑧

I

V

I

LX SW “Pch” ON

Resistance ^(*4)

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

,

E3

0.6

I_OUT=200mA

LX SW “Nch” ON

Resistance ^(*5)

V_BAT=V_CE=3.3V, V_OUT=1.7V

V_BAT=V_PULL=1.5V,

-

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

CE “High” Voltage

CE “Low” Voltage

V_CEH

0.75

-

5.5

V

①

While V_CE=0.3→0.75V,

Voltage to start oscillation

V_BAT=V_PULL=1.5V,

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

V_CEL

GND

0.3

While V_CE=0.75→0.3V,

Voltage to stop oscillation

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_BAT=V_CE=V_LX=V_OUT=5.5V

-0.1

-

0.1

μA

①

V_BAT=V_LX=V_OUT=5.5V, V_CE=0V

Unless otherwise stated, V_BAT=V_CE=1.5V

(*1)

V

=Nominal Output Voltage

=Effective Output Voltage

OUT(T)

(*2)

OUT(E)

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

^(*4)LX SW “Pch” ON resistance=(V_LX-V_OUTpin measurement voltage) / 200mA

^(*5)The LX SW “Nch” ON resistance measurement method is shown in the measurement circuit diagram.

4/28

XC9140 (Design Target)

XC9140

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9140Cxx1 Type, without UVLO function, without C_Ldischarge function

Ta=25˚C

PARAMETER

Input Voltage

SYMBOL

V_BAT

CONDITIONS

MIN.

-

TYP.

-

MAX.

5.5

UNITS CIRCUIT

V

-

V_PULL=1.5V, Voltage to start oscillation

while V_OUTis decreasing

I_OUT=1mA

(*2)

Output Voltage

V_OUT(E)

E1

①

Operation Start Voltage

Operation Hold Voltage

V_ST1

V_HLD

-

0.9

-

V

②

R_L=1kΩ

0.7

Oscillation stops,

Supply Current

Iq

E2

μA

③

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

V_BAT=V_LX=5.5V, V_CE=0V

Input Pin Current

I_BAT

I_BYP

-

0.25

3.5

1.0

6.1

μA

③

⑥

Bypass Mode Current

PFM Switching Current

Maximum ON Time

Efficiency ^(*3)

I_PFM

t_ONMAX

EFFI

I_OUT=3mA

295

3.1

-

350

4.6

81

405

6.0

-

mA

μs

%

②

①

②

V_PULL=1.5V, V_OUT=V_{OUT( )}×0.98V ^(*1)

V_BAT=V_CE=1.8V, V_OUT(T)^(*1)=2.5V,

Ｔ

I_OUT=30mA

V_BAT=V_CE=1.8V, V_OUT(T)^(*1)=3.3V,

I_OUT=30mA

Efficiency ^(*3)

EFFI

R_LXP

R_LXN

-

85

86

-

%

Ω

②

⑦

⑧

V

_BAT=V_CE=1.8V, V_OUT(T)^(*1)=5.0V,

I

_OUT=30mA

LX SW “Pch” ON

Resistance ^(*4)

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

,

E3

0.6

I_OUT=200mA

LX SW “Nch” ON

Resistance ^(*5)

V_BAT=V_CE=3.3V, V_OUT=1.7V

V_BAT=V_PULL=1.5V,

-

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

CE “High” Voltage

CE “Low” Voltage

V_CEH

0.75

-

5.5

V

①

While V_CE=0.3→0.75V,

Voltage to start oscillation

V_BAT=V_PULL=1.5V,

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

V_CEL

GND

0.3

While V_CE=0.75→0.3V,

Voltage to stop oscillation

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_BAT=V_CE=V_LX=V_OUT=5.5V

-0.1

-

0.1

μA

①

V_BAT=V_LX=V_OUT=5.5V, V_CE=0V

Unless otherwise stated, V_BAT=V_CE=1.5V

(*1)

V

=Nominal Output Voltage

=Effective Output Voltage

OUT(T)

(*2)

OUT(E)

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

^(*4)LX SW “Pch” ON resistance=(V_LX-V_OUTpin measurement voltage) / 200mA

^(*5)The LX SW “Nch” ON resistance measurement method is shown in the measurement circuit diagram.

5/28

XC9140 Series

■ ELECTRICAL CHARACTERISTICS (Continued)

●XC9140Axxx types (types other than XC9140Axx1), with UVLO function, without C_Ldischarge function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

5.5

UNITS

V

CIRCUIT

Input Voltage

V_BAT

-

V_PULL=1.5V, Voltage to start oscillation

while V_OUTis decreasing

(*2)

Output Voltage

Operation Start Voltage

Operation Hold Voltage

Supply Current2

V_OUT(E)

E1

-

V

①

②

③

V_RELEASE(E)

V_ST1

V_HLD

Iq

I_OUT=1mA

-

(*7)

V_DETECT(E)

R_L=1kΩ

-

V

(*8)

Oscillation stops,

E4

μA

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

V_BAT=V_LX=V_OUT(T)^(*1), V_OUT=V_CE=0V

I_OUT=3mA

Input Pin Current2

Stand-by Current

I_BAT

I_STB

I_LXL

I_PFM

E5

0.1

350

μA

mA

③

④

⑤

②

-

1.0

L_XLeak Current

PFM Switching Current

295

405

V_PULL= V_RELEASE(T)+0.1V ^(*6)

,

Maximum ON Time

t_ONMAX

3.1

4.6

6.0

μs

①

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

Efficiency ^(*3)

EFFI

V_OUT(T)^(*1)=2.5V, I_OUT=30mA

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

V_OUT(T)^(*1)=5.0V, I_OUT=30mA

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

I_OUT=200mA

-

81

85

86

-

%

②

LX SW “Pch” ON

Resistance ^(*4)

LX SW “Nch” ON

Resistance ^(*5)

,

R_LXP

E3

Ω

⑦

⑧

R_LXN

V_BAT=V_CE=3.3V, V_OUT=1.7V

-

0.6

-

V_BAT=V_PULL= V_RELEASE(T)+0.1V ^(*6)

,

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

CE “High” Voltage

CE “Low” Voltage

V_CEH

0.75

-

5.5

V

①

While V_CE=0.3→0.75V,

Voltage to start oscillation

V_BAT=V_PULL= V_RELEASE(T)+0.1V ^(*6)

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

V_CEL

GND

0.3

While V_CE=0.75→0.3V,

Voltage to stop oscillation

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_BAT=V_CE=V_LX=V_OUT=5.5V

-0.1

-

0.1

μA

①

V_BAT=V_LX=V_OUT=5.5V, V_CE=0V

V_BAT= V_CE= V_DETECT(E)- 0.1V ^(*8)

,

UVLO Current

I_DQ

E6

μA

②

I_OUT=0mA

V_PULL= V_OUT= V_{OUT( )}×0.98V ^(*1)

,

Ｔ

V_RELEASE(E)V_BAT= V_CE

UVLO Release Voltage

E7

V

①

(*7)

Voltage to start oscillation while

V_BATis increasing

V_PULL= V_OUT= V_{OUT( )}×0.98V ^(*1)

,

Ｔ

UVLO Hysteresis

Voltage

V_BAT= V_CE

(*9)

V_HYS(E)

0.1

0.15

0.2

V

①

V_RELEASE(E)- Voltage to stop oscillation

while V_BATis decreasing^(*7)

Unless otherwise stated,, V_BAT=V_CE=V_RELEASE(T)+0.1V ^(*6)

(*1)

V

= Nominal Output Voltage

= Effective Output Voltage

OUT(T)

(*2)

OUT(E)

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

^(*4)LX SW “Pch” ON resistance=(V_LX-V_OUTpin measurement voltage) / 200mA

^(*5)The LX SW “Nch” ON resistance measurement method is shown in the measurement circuit diagram.

(*6)

V

= Nominal UVLO release voltage

= Actual UVLO release voltage

=V_RELEASE(E)-V_HYS(E)= Actual UVLO detect voltage

RELEASE(T)

(*7)

(*8)

(*9)

RELEASE(E)

DETECT(E)

= Actual UVLO hysteresis voltage

HYS(E)

6/28

XC9140 (Design Target)

XC9140

Series

■ELECTRICAL CHARACTERISTICS (Continued)

●XC9140Cxxx type (types other than XC9140Cxx1), with UVLO function, without C_Ldischarge function

Ta=25˚C

PARAMETER

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

5.5

UNITS CIRCUIT

Input Voltage

V_BAT

-

V

V_PULL=1.5V, Voltage to start oscillation

while V_OUTis decreasing

(*2)

Output Voltage

Operation Start Voltage

Operation Hold Voltage

Supply Current2

V_OUT(E)

E1

-

V

①

②

③

V_RELEASE(E)

V_ST1

V_HLD

Iq

I_OUT=1mA

-

(*7)

V_DETECT(E)

R_L=1kΩ

-

V

(*8)

Oscillation stops,

E4

μA

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

V_BAT=V_LX= V_RELEASE(T)+0.1V ^(*6), V_CE=0V

I_OUT=3mA

Input Pin Current2

Bypass Mode Current

PFM Switching Current

I_BAT

I_BYP

I_PFM

E5

5.5

μA

mA

③

⑥

②

-

8.1

295

350

405

V_PULL= V_RELEASE(T)+0.1V ^(*6)

,

Maximum ON Time

t_ONMAX

3.1

4.6

6.0

μs

①

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

Efficiency ^(*3)

EFFI

V_OUT(T)^(*1)=2.5V, I_OUT=30mA

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

V_OUT(T)^(*1)=5.0V, I_OUT=30mA

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

I_OUT=200mA

-

81

85

86

-

%

②

LX SW “Pch” ON

Resistance ^(*4)

LX SW “Nch” ON

Resistance ^(*5)

,

R_LXP

E3

Ω

⑦

⑧

R_LXN

V_BAT=V_CE=3.3V, V_OUT=1.7V

-

0.6

-

V_BAT=V_PULL= V_RELEASE(T)+0.1V ^(*6)

,

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

CE “High” Voltage

CE “Low” Voltage

V_CEH

0.75

-

5.5

V

①

While V_CE=0.3→0.75V,

Voltage to start oscillation

V_BAT=V_PULL= V_RELEASE(T)+0.1V ^(*6)

V_OUT=V_{OUT( )}×0.98V ^(*1)

Ｔ

V_CEL

GND

0.3

While V_CE=0.75→0.3V,

Voltage to stop oscillation

CE “High” Current

CE “Low” Current

I_CEH

I_CEL

V_BAT=V_CE=V_LX=V_OUT=5.5V

-0.1

-

0.1

μA

①

V_BAT=V_LX=V_OUT=5.5V, V_CE=0V

V

_BAT= V_CE= V_DETECT(E)- 0.1V ^(*8)

_OUT=0mA

V_BAT= V_LX= V_DETECT(E)- 0.1V ^(*8), V_CE=0V

V_PULL= V_OUT= V_{OUT( )}×0.98V ^(*1)

,

UVLO Current

I_DQ

E6

E8

μA

②

⑥

I

UVLO Bypass Current

I_DBYP

,

Ｔ

V_RELEASE(E)

V

_BAT= V_CE

Voltage to start oscillation while

_BATis increasing

V_PULL= V_OUT= V_{OUT( )}×0.98V ^(*1)

UVLO Release Voltage

E7

V

①

(*7)

V

,

Ｔ

UVLO Hysteresis

Voltage

V

_BAT= V_CE

(*9)

V_HYS(E)

0.1

0.15

0.2

V

_RELEASE(E)- Voltage to stop oscillation

while V_BATis decreasing^(*7)

Unless otherwise stated, V_BAT=V_CE= V_RELEASE(T)+0.1V ^(*6)

(*1)

V

=Nominal Output Voltage

OUT(T)

(*2)

=Effective Output Voltage

OUT(E)

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

^(*4)LX SW “Pch” ON resistance=(V_LX-V_OUTpin measurement voltage) / 200mA

^(*5)The LX SW “Nch” ON resistance measurement method is shown in the measurement circuit diagram.

(*6)

V

= Nominal UVLO release voltage

= Actual UVLO release voltage

= V_RELEASE(E)-V_HYS(E)= Actual UVLO detect voltage

RELEASE(T)

(*7)

(*8)

(*9)

RELEASE(E)

DETECT(E)

= Actual UVLO hysteresis voltage

HYS(E)

7/28

XC9140 Series

■ELECTRICAL CHARACTERISTICS (Continued)

XC9140 Voltage Chart 1

SYMBOL

PARAMETER

UNITS: V

E1

E2

E3

E4

LX SW “Pch” ON

RESISTANCE

Output Voltage

Supply Current

Supply Current2

UNITS: V

UNITS: μA

UNITS: Ω

UNITS: μA

OUTPUT

MIN.

MAX.

TYP.

MAX.

TYP.

0.84

MAX.

1.08

TYP.

6.8

MAX.

9.7

VOLTAGE

1.8

1.9

2.0

2.1

1.764

1.862

1.960

2.058

1.836

1.938

2.040

2.142

6.1

9.4

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

4.9

5.0

2.156

2.254

2.352

2.450

2.548

2.646

2.744

2.842

2.940

3.038

3.136

3.234

3.332

3.430

3.528

3.626

3.724

3.822

3.920

4.018

4.116

4.214

4.312

4.410

4.508

4.606

4.704

4.802

4.900

2.244

2.346

2.448

2.550

2.652

2.754

2.856

2.958

3.060

3.162

3.264

3.366

3.468

3.570

3.672

3.774

3.876

3.978

4.080

4.182

4.284

4.386

4.488

4.590

4.692

4.794

4.896

4.998

5.100

6.2

9.7

0.75

0.97

6.9

9.8

6.3

6.4

6.5

10.0

10.2

10.4

0.65

0.61

0.57

0.85

0.78

0.74

7.0.

7.1

7.2

10.0

10.1

10.2

6.7

10.7

0.53

0.72

7.3

10.3

8/28

XC9140 (Design Target)

XC9140

Series

■ELECTRICAL CHARACTERISTICS (Continued)

XC9140 Voltage Chart 2

SYMBOL

PARAMETER

UNITS: V

E5

E6

E7

E8

UVLO RELEASE

VOLTAGE

Input Pin Current2

UNITS: μA

UVLO Current

UNITS: μA

UVLO Bypass Current

UNITS: μA

UNITS: V

UVLO

Release

Voltage

TYP.

MAX.

TYP.

MAX.

MIN.

MAX.

TYP.

MAX.

1.65

1.70

1.75

1.80

1.85

1.90

1.95

2.00

2.05

2.10

2.15

2.20

1.601

1.649

1.698

1.746

1.795

1.843

1.892

1.940

1.989

2.037

2.086

2.134

1.699

1.751

1.802

1.854

1.905

1.957

2.008

2.060

2.111

2.163

2.214

2.266

0.71

0.73

0.75

0.77

0.79

0.82

1.50

1.60

1.70

3.25

3.27

3.29

3.31

3.33

3.35

6.00

6.10

6.20

6.30

2.15

2.20

2.30

2.35

2.40

2.45

4.10

4.20

4.30

4.40

9/28

XC9140 Series

■TEST CIRCUITS

<L_XSW “Nch” ON Resistance Measurement Method>

Use Test Circuit No.8 to adjust V_pullso that the L_Xpin voltage becomes 100mV when the Nch drive Tr is ON and then the voltage at both ends

of R_pullis measured to find the Lx SW "Nch" ON resistance.

R_LXN=0.1 / {(V1 - 0.1) / 4.7)}

Note that V1 is the R_pullprevious voltage when the Nch driver Tr is ON. Use an oscilloscope or other instrument to measure the L_Xpin voltage

and V1.

10/28

XC9140 (Design Target)

XC9140

Series

■TYPICAL APPLICATION CIRCUIT

【Reference External Components】

MANUFACTURE

PRODUCT NUMBER

VALUE

L

TDK

VLF302512M-4R7

LMK107BJ475MA

LMK107BJ106MA

4.7μH

C_IN

C_L

TAIYO YUDEN

4.7μF/10V

10μF/10V

* When selecting components, take into consideration capacitance reduction, voltage, etc.

* The characteristics are dependent on the variation in the coil inductance value, so check these carefully in the actual product.

* A coil inductance value of 4.7 to 10.0μH can be used, but using 4.7μH is recommended.

* The ripple voltage will increase if tantalum or electrolytic capacitors are used for the load capacitor C_L. The operation could also become

unstable, so carefully check this in the actual product.

11/28

XC9140 Series

■OPERATIONAL EXPLANATION

The XC9140 Series consists of a standard voltage source, a PFM comparator, a Nch driver Tr, a Pch synchronous rectifier switch Tr, a

current sense circuit, a PFM control circuit and a CE control circuit, etc. (refer to the block diagram below.)

L_X

PFM Comparator Unit

C_FBR_FB1

Parasitic Diode

Controller

V_OUT

Current Sense

PFM Controller

V_OUT

PFM

Comparator

R_FB2

C_L

Buffer

Driver

and

Inrush

Currrent

Protection

Discharge

FB

-

+

GND

V_OUT

V_REF

V_BAT–V_OUTDetector

V_DD

CE and Bypass

Controller Logic

CE

Hysteresis UVLO

V_BAT

Comparator

+

-

Current limit PFM control is used for the control method to make it difficult for the output voltage ripple to increase even when the switching

current is superimposed, so the product can be used within a wide voltage and current range. Further, because PFM control is used, it has

excellent transient response to support low capacity ceramic capacitors to realize a compact, high-performance boost DC/DC converter.

The synchronous driver and rectifier switch Tr efficiently sends the coil energy to the capacitor connected to the V_OUTpin to achieve highly

efficient operation from low to high loads.

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

the booster circuit output voltage average value, including the peripheral components, depends on the ripple voltage, so this must be carefully

evaluated before being used in the actual product.

V_BAT=V_CE=2.0V V =3.3V I =70mA L=4.7μH C =10μF Ta=25

、

L

、

℃

V_BAT=V_CE=2.0V V =3.3V I =20mA L=4.7μH C =10μF Ta=25

OUT

、

℃

OUT

L

V_LX

V_LX:2V/div

V_OUTVoltage

Average

V_OUTVoltage

Average

V_OUT

V_OUT:50mV/div

I_LX:200mA/div

V_OUT

V_OUT(E)

I_PFM

I_LX

2[μs/div]

< Reference Voltage Source (V_REF)>

The reference voltage source (V_REFvoltage) provides the reference voltage to ensure stable output voltage of the DC/DC converter.

< PFM Control >

①The voltage from the output voltage divided by the division resistors R_FB1and R_FB2in the IC is used as feedback voltage (FB voltage), and the PFM

comparator is compared with the FB voltage and V_REF. If the FB voltage is lower than V_REF, the signal is sent to the buffer driver via the PFM control circuit

and the Nch driver Tr is turned ON. If the FB voltage is higher than V_REF, the PFM comparator sends a signal that does not turn ON the Nch driver Tr.

②The current sense circuit monitors the current flowing in the Nch driver Tr connected to the Lx pin when the Nch driver Tr is ON. When the

prescribed PFM switching current (I_PFM) is reached, the signal is sent to the buffer driver via the PFM control circuit to turn OFF the Nch driver Tr

and turn ON the Pch synchronous rectifier switch Tr.

③The Pch synchronous rectifier switch Tr ON time (off time) is dynamically optimized internally. After the off time has passed, when the PFM

comparator confirms the V_OUTvoltage has exceeded the set voltage, a signal that does not allow the Nch driver Tr to be turned on is sent from the

PFM comparator to the PFM control circuit, but if the V_OUTvoltage remains lower than the set voltage, then Nch driver Tr ON is started.

The intervals of the above ①②③ linked operations are continuously adjusted in response to the load current to ensure the output voltage is kept

stable from low to high loads and that it is done with good efficiency.

12/28

XC9140 (Design Target)

XC9140

Series

■OPERATIONAL EXPLANATION (Continued)

The PFM switching current unit monitors the current flowing in the Nch driver Tr and functions to limit the current flowing in the Nch driver Tr,

but if the load current becomes much larger than the PFM switching energy, the V_OUTvoltage becomes lower and prevents the coil current in the

Nch driver Tr OFF period from lowering, which affects the internal circuit delay time and results in an excessive current that is larger than the PFM

switching current flowing in the Nch driver Tr and Pch synchronous rectifier switch Tr.

When a "L" voltage is input to the CE pin, the XC9140A type enters into standby mode and the XC9140C type enters into bypass mode to stop

the circuit required for the boost operation.

In the standby mode the load cut-off function operates and both the Nch driver Tr and Pch synchronous rectifier switch Tr are turned OFF, which

cuts off the current to the L_Xpin and V_OUTpin and the parasitic diode control circuit connects the parasitic diode cathode of the Pch synchronous

rectifier switch Tr to the L_Xpin ①. In the bypass mode the Nch driver Tr is OFF, the Pch synchronous rectifier switch Tr is ON when V_LX> V_OUT, and

the parasitic diode control circuit connects the parasitic diode cathode of the Pch synchronous rectifier switch Tr to the V_OUTpin ②. Also, when V_LX

_OUT, the Pch synchronous rectifier switch Tr is turned OFF and the parasitic diode cathode is connected to the V_OUTpin ②.

<

V

Note: Except for the moment when the V_BATvoltage is input.

①

②

< V_BAT-V_OUTVoltage Detection Circuit>

The V_BAT-V_OUTvoltage detection circuit compares the V_BATpin voltage with the V_OUTpin voltage, and whichever is the highest is operated to

become the IC power supply (V_DD).

In addition, if, during normal operation, the input voltage becomes higher than the output voltage, the Nch driver Tr is turned OFF and the

Pch synchronous rectifier switch Tr is kept ON so that the input voltage pass through to the output voltage (through mode). When the input

voltage becomes lower than the output voltage, the circuit automatically returns to the normal boost operation. This detection circuit does not

operate when in the standby mode.

When the V_BATor V_CEpower supply is input, C_Lis charged via the stable current that results from the inrush current protection function (refer

to graphs below). Therefore, this function minimizes potential over current from the V_BATpin to the V_OUTpin. Also, this current value depends on

the V_BATvoltage. After C_Lis charged by the aforementioned stable current and V_OUTreaches around the V_BATvoltage level, the inrush current

protection function will be released after several hundred μs ~ several ms and the IC will then move to step-up mode, by pass mode or through

mode.

Inrush Current Protection Characteristics

L=4.7μH(VLF302512M-4R7M),C =4.7μF(LMK107BJ475MA),

IN

C_L=10μF(LMK107BJ106MA),I_OUT=1mA,Ta=25

℃

300

250

200

150

100

50

600

550

500

450

400

350

300

250

200

0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

Input Voltage: V_BAT(V)

13/28

XC9140 Series

■OPERATIONAL EXPLANATION (Continued)

The UVLO function is selectable on the XC9140 series as an option. When the V_BATpin voltage falls below the UVLO detect voltage, the IC

stops switching or BYPASS operation and cuts off the current to the L_Xpin and V_OUTpin (UVLO mode). In addition, when the V_BATpin voltage

recovers to above the UVLO release voltage, the IC begins operating again.

<C_LDischarge Function>

With the XC9140 Series an optional C_Ldischarge function (under development) can be selected. This function uses the Nch Tr connected

between V_OUTand GND to discharge, at high speed, the load capacity C_Lcharge when the "L" voltage is input to the CE pin (when in the IC

standby mode). This is done to prevent malfunction of the application caused by a residual charge in C_Lwhen the IC is stopped. The discharge

time is determined by the C_Ldischarge resistance R_DCHG, including the Nch Tr, and C_L. The constant τ=C_L×R_DCHGis determined at this time, and

the following formula is used to find the output voltage discharge time. However, the C_Ldischarge resistance R_DCHGvaries depending on the V_BAT

or V_OUTvoltage, so the discharge time cannot be determined easily. Therefore, carefully check this in the actual product.

V=V_OUT× e ^{- t /}^τor t=τIn(V_OUT/ V)

V: Output voltage after discharge

V

_OUT: Output voltage

ｔ: Discharge time

τ: C_L× R_DCHG

C_L: Capacity value of the load capacitor (C_L)

R_DCHG: Low resistance value of the C_Ldischarge resistance.

However, this changes depending on the voltage.

The XC9140A/ XC9140C series do not have a C_Ldischarge function as standard.

14/28

XC9140 (Design Target)

XC9140

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. An excessive current that is larger than the PFM switching current flowing in the Nch driver Tr and Pch synchronous rectifier switch Tr, which

could destroy the IC.

6. When in the bypass mode, the internal Pch synchronous rectifier switch Tr turns ON to allow current to flow to the Lx pin and V_OUTpin. When an

excessive current comes from the V_OUTpin when this bypass operates, it could destroy the Pch synchronous rectifier switch Tr.

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

8. The coil inductance value applicable range is 4.7μH to 10μH, but 4.7μH is recommended because at this value the coil size and DC/DC

performance are optimized. If you want to use another inductance value other than 4.7μH but which is in the above applicable range, be sure

to carefully evaluate it first before use.

9. At high temperatures, the product performance could vary causing the efficiency to decline. Evaluate this carefully before use if the product will

be used at high temperatures.

10. Please note that the leak current of the Pch synchronous rectifier switch Tr during high-temperature standby operation could cause the output

voltage to increase.

11. The output voltage ripple effect from the load current causes the output voltage average value to fluctuate, so carefully evaluate this in the

actual product before use.

12. When the booster circuit is activated by a low input voltage, during the time until the output voltage reaches about 1.7V, the PFM switching

current function might not operate causing the coil current to be superimposed. (See the figure below.)

V_BAT=V_CE=0 0.9V

→

V

=1.8V

OUT

I

=1mA L=4.7μH C =10μF Ta=25

、

℃

OUT

L

V_OUT

V_BAT=V_CE

V_LX

V_BAT=V_CE:1.0V/div

V_OUT:1.0V/div

V_LX:2.0V/div

I_LX:200mA/div

I_LX

200[μs/div]

V_OUT

V_BAT=V_CE

V_LX

V_BAT=V_CE:1.0V/div

V_OUT:1.0V/div

V_LX:2.0V/div

Zoom

I_LX:200mA/div

I_LX

50[μs/div]

=1.8V I =1mA L=4.7μH C =10μF Ta=25

、

OUT OUT

V_BAT=V_CE=0 1.7V

→

V

、

L

、

℃

V_OUT

V_BAT=V_CE:1.0V/div

V_OUT:1.0V/div

V_LX:2.0V/div

V_BAT=V_CE

V_LX

I_LX

I_LX:200mA/div

200[μs/div]

V_OUT

V_BAT=V_CE:1.0V/div

V_OUT:1.0V/div

V_LX:2.0V/div

V_BAT=V_CE

V_LX

Zoom

I_LX

I_LX:200mA/div

50[μs/div]

15/28

XC9140 Series

■NOTE ON USE (Continued)

13. If the C_Lcapacity or load current becomes excessively large, the output voltage start-up time, when the power is turned on, will increase, so

the coil current might be superimposed during the time it takes for the output voltage to become sufficiently higher than the V_BATvoltage.

14. If the input voltage is higher than the output voltage, then the circuit automatically enters the through mode. When the input voltage becomes

close to the output voltage, there could be repeated switching between the boost mode and through mode causing the ripple voltage to

fluctuate. (Refer to the graphic below)

V_BAT=V_CE=3.316V,V_OUT=3.412V,I_OUT=3mA,L=4.7μH,C =10μF,Ta=25

℃

L

V_OUT

V_BAT

V_OUT:100mV/div

V_BAT:100mV/div

V_LX

V_LX:2.0V/div

200[μs/div]

15. If a different power supply is connected from an external source to the XC9140A/XC9140C, the IC could be destroyed.

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

17. 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.

18. With the XC9140A, when the V_BATor V_CEpower supply is input, if the V_OUTpin voltage does not exceed V_BAT-0.35V, which can happen due to

the load current being more than the inrush protection current, step-up mode or through mode operations won’t function correctly.

19. With the XC9140C, when the V_BATpower supply is input, if the V_OUTpin voltage does not exceed V_BAT-0.35V, which can happen due to the

load current being more than the inrush protection current, by pass mode operations won’t function correctly.

20. In the case of products with the UVLO function that do not have C_Ldischarge, the output voltage may occasionally rise due to leakage current

from the Pch synchronous switch Tr when high-temperature UVLO mode operates.

16/28

XC9140 (Design Target)

XC9140

Series

■NOTE ON USE (Continued)

●Instructions of pattern layouts

1. In order to stabilize V_BATvoltage level, we recommend that a by-pass capacitor (C_IN) be connected as close as possible to the V_BATand ground pins.

2. Please mount each external component as close to the IC as possible.

3. Wire external components as close to the IC as possible and use thick, short connecting traces to reduce the circuit impedance.

4. Make sure that the 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 (SOT-25)

FRONT

BACK

●Recommended Pattern Layout (USP-6EL)

FRONT

BACK

17/28

XC9140 Series

■TYPICAL PERFORMANCE CHARACTERISTICS

(1)

-

効率出力電流特性例

(1) Efficiency vs. Output Current

XC9140A331MR-G(V^OUT=3.3V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A331MR-G(VOUT=3.3V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

100

80

60

40

20

0

100

80

60

40

20

0

2.5V

3.0V

V_BAT=1.8V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9140A501MR-G(V^OUT=5.0V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A501MR-G(V^OUT=5.0V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

100

80

60

40

20

0

100

80

60

40

20

0

4.2V

V_BAT=3.0V

3.7V

V_BAT=3.0V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

(2) Output Voltage vs. Output Current

(2) 出力電圧 - 出力電流特性例

XC9140A331MR-G(V_OUT=3.3V)

XC9140A331MR-G(V^OUT=3.3V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A331MR-G(V^OUT=3.3V)

L=4.7μH(VLF302512M-4R7M),C =4.7μF(LMK107BJ475MA),

IN

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C =10μF(LMK107BJ106MA)

C =^L10μF(LMK107BJ106MA)

3.9

3.7

3.5

3.3

3.1

2.9

3.9

3.7

3.5

3.3

3.1

2.9

2.5V

3.0V

2.5V

3.0V

V_BAT=1.8V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

18/28

XC9140 (Design Target)

XC9140

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

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

XC9140A501MR-G(V^OUT=5.0V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A501MR-G(V^OUT=5.0V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

5.6

5.4

5.2

5.0

4.8

4.6

5.6

5.4

5.2

5.0

4.8

4.6

4.2V

V_BAT=3.0V

V_BAT=3.0V 3.7V

3.7V

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

(3) Ripple Voltage vs. Output Current

(3) 出力リップル電圧 - 出力電流特性例

XC9140A331MR-G(VOUT=3.3V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A331MR-G(V^OUT=3.3V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

300

250

200

150

100

50

300

250

200

150

100

50

3.0V

2.5V

V_BAT=1.8V

3.0V

V_BAT=1.8V

0

0.01

0.1

1

10

100

0.01

0.1

1

10

100

1000

Output Current : I_OUT(mA)

XC9140A501MR-G(V^OUT=5.0V)

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140A501MR-G(V^OUT=5.0V)

L=10μH(VLF302512M-100M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

300

250

200

150

100

50

300

250

200

150

100

50

3.7V

4.2V

3.7V

4.2V

V_BAT=3.0V

0

0.01

0.1

1

10

100

1000

0.01

0.1

1

10

100

Output Current : I_OUT(mA)

19/28

XC9140 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(4) Output Voltage vs. Ambient Temperature

(4) 出力電圧 - 周囲温度特性例

XC9140x33x(V^OUT=3.3V)

XC9140x50x(V^OUT=5.0V)

5.3

5.2

5.1

5.0

4.9

4.8

4.7

3.6

3.5

3.4

3.3

3.2

3.1

3.0

-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

(6) Input Pin Current vs. Ambient Temperature

(5) 消費電流 - 周囲温度特性例

(6) 入力端子電流 - 周囲温度特性例

XC9140xxx1

20

2.0

18

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0.0

V_OUT=5.0V

3.0V

V_OUT=5.0V

3.0V

16

14

12

10

8

6

4

2

0

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (℃)

Ambient Temperature: Ta (

)

℃

(7) Stand-by Current vs. Ambient Temperature

(7) スタンバイ電流 - 周囲温度特性例

XC9140A

3.0

V_OUT=5.0V

2.5

2.0

1.5

1.0

0.5

0.0

3.0V

1.8V

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

20/28

XC9140 (Design Target)

XC9140

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(8) PFMスイッチング電流 - 周囲温度特性例

(8) PFM Switching Current vs. Ambient Temperature

(9) PFMスイッチング電流 - 入力電圧特性例

(9) PFM Switching Current vs. Input Voltage

XC9140

XC9140x50x

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

C =10μF(LMK107BJ106MA)

500

V_OUT=5.0V

450

400

350

300

250

200

150

100

50

3.0V

1.8V

400

350

300

250

200

150

100

50

0

-50

-25

0

25

50

75

100

0

1

2

3

4

5

6

Ambient Temperature: Ta (

)

℃

Input Voltage: V^BAT(V)

(10) MAX. ON Time vs. Ambient Temperature

(11) Lx SW “Nch” ON Resistance vs. Output Voltage

(11) LxSW"Nch"ON抵抗 - 出力電圧特性例

(10) 最大ON時間 - 周囲温度特性例

XC9140

10.0

1.2

Ta=85

℃

V_OUT=3.0V

5.0V

1.0

0.8

0.6

0.4

0.2

0.0

25

℃

8.0

6.0

4.0

2.0

0.0

-40

℃

1.8V

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

)

℃

Output Voltage : V_OUT(V)

(12) LxSW"Pch"ON抵抗 - 出力電圧特性例

(12) Lx SW “Pch” ON Resistance vs. Output Voltage

(13) Lxリーク電流 - 周囲温度特性例

(13) Lx Leak Current vs. Ambient Temperature

XC9140Axx1

XC9140xxx1

V_BAT=V_LX=V_CE=V_OUT_(E)+0.5V,I_OUT=200mA

V_BAT=V_LX=V_OUT(E), V_OUT=V_CE=0V

1.2

3.0

2.5

2.0

1.5

1.0

0.5

0.0

Ta=85

℃

V_LX=5.0V

3.3V

25

℃

1.0

0.8

0.6

0.4

0.2

0.0

-40

℃

1.8V

-50

-25

0

25

50

75

100

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

Ambient Temperature: Ta (℃)

Output Voltage : V_OUT(V)

21/28

XC9140 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(14) CE “High” Voltage vs. Output Voltage

(15) CE “Low” Voltage vs. Output Voltage

(14) CE"H"電圧 - 出力電圧特性例

(15) CE"L"電圧 - 出力電圧特性例

XC9140

0.8

0.7

0.6

0.5

0.4

0.3

0.2

Ta=-40℃

25℃

0.7

0.6

0.5

0.4

0.3

0.2

25℃

85℃

0

1

2

3

4

5

6

0

1

2

3

4

5

6

Output Voltage : V_OUT(V)

(16) Operation Start Voltage vs. Ambient Temperature

(17) Operation Hold Voltage vs. Ambient Temperature

(16) 動作開始電圧 - 周囲温度特性例

(17) 動作保持電圧 - 周囲温度特性例

XC9140xxx1

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA),R_L=1kΩ

1.0

XC9140xxx1

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA),R_L=V_OUT_(E)/1mA

1.0

V_OUT=1.8V

V_OUT=5.0V

0.9

3.3V

5.0V

0.9

0.8

0.7

0.6

0.5

0.4

3.3V

1.8V

0.8

0.7

0.6

0.5

0.4

0.3

0.2

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (℃)

as

XC9140x18x(V_OUT=1.8V)

解除電圧周囲温度特性例

(18) UVLO -

(18) UVLO Rele e Voltage vs. Ambient Temperature

XC9140x50x(V_OUT=5.0V)

1.80

1.75

1.70

1.65

1.60

1.55

1.50

1.45

1.40

2.35

V_RELEASE(T)= 1.65V

V_RELEASE(T)= 2.2V

V_RELEASE(T)

=

2.30

2 2V

2.25

2.20

2.15

2.10

2.05

2.00

1.95

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (℃)

22/28

XC9140 (Design Target)

XC9140

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(19) UVLO Detect Voltage vs. Ambient Temperature

(19) UVLO検出電圧 - 周囲温度特性例

XC9140x18x(V_OUT=1.8V)

XC9140x50x(V_OUT=5.0V)

1.80

1.75

1.70

1.65

1.60

1.55

1.50

1.45

1.40

2.35

2.30

2.25

2.20

2.15

2.10

2.05

2.00

1.95

V_RELEASE(T)= 1.65V

V_RELEASE(T)= 2.2V

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (

℃)

Ambient Temperature: Ta (℃)

(20) UVLOヒステリシス電圧 - 周囲温度特性例

(20) UVLO Hysteresis Voltage vs. Ambient Temperature

XC9140x50x(V_OUT=5.0V)

XC9140x18x(V_OUT=1.8V)

0.30

V_RELEASE(T)= 1.65V

V_RELEASE(T)= 2.2V

0.25

0.20

0.15

0.10

0.05

0.00

0.20

0.15

0.10

0.05

0.00

-50

-25

0

25

50

75

100

-50

-25

0

25

50

75

100

Ambient Temperature: Ta (℃)

(21) No Load Input Current vs. Input Voltage

XC9140x50x(V_OUT=5.0V)

L=4.7μH(VLF302512M-4R7M),CIN=4.7μF(LMK107BJ475MA),

XC9140x18x(V_OUT=1.8V)

L=4.7μH(VLF302512M-4R7M),CIN=4.7μF(LMK107BJ475MA),

CL=10μF(LMK107BJ106MA),V_BAT= V_CE,I_OUT=0mA

30

25

20

15

10

5

30

25

20

15

10

5

V_RELEASE(T)= 2.2V

V_RELEASE(T)= 1.65V

Ta=25

℃

Ta=25

℃

0

1.0

2.0

3.0

4.0

5.0

0.95

1.15

1.35

1.55

1.75

Input Voltage: V_BAT(V)

23/28

XC9140 Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(22) UVLO Bypass Current vs. Input Voltage

(22) UVLO解除動作時のバイパス消費電流遷移状態特性例

XC9140C18x(V_OUT=1.8V)

XC9140C50x(V_OUT=5.0V)

25

20

15

10

5

25

V_RELEASE(T)= 2.2V

V_RELEASE(T)= 1.65V

Ta=25℃

20

15

10

5

0

1.0

1.5

2.0

2.5

3.0

1.0

1.5

2.0

2.5

3.0

Input Voltage: V_BAT(V)

(23) 出力電圧立ち上がり特性例

(23) Rising Output Voltage

XC9140x331

V_OUT=3.3V,V_BAT=V_CE=0→1.8V,R_L=330Ω

V_OUT=3.3V,V_BAT=V_CE=0→0.9V,R_L=3300Ω

V_OUT

V_BAT=V_CE

V_LX

I_LX

V_OUT:2V/div,V_BAT:2V/div,V_LX:5V/div,I_LX:500mA/div,Time:500μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

V_OUT:2V/div,V_BAT:2V/div,V_LX:5V/div,I_LX:500mA/div,Time:500μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140x501

V_OUT=5.0V,V_BAT=V_CE=0→3.3V,R_L=500Ω

V_OUT=5.0V,V_BAT=V_CE=0→5.5V,R_L=500Ω

V_OUT

V_BAT=V_CE

V_BAT=V_CEV_OUT

V_LX

I_LX

V_OUT:2V/div,V_BAT:2V/div,V_LX:5V/div,I_LX:500mA/div,Time:500μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

V_OUT:2V/div,V_BAT:2V/div,V_LX:5V/div,I_LX:500mA/div,Time:500μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

24/28

XC9140 (Design Target)

XC9140

Series

■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)

(24) Load Transient Response

(24) 負荷過渡応答特性例

XC9140x181

V_OUT=1.8V,V_BAT=V_CE=0.9V,I_OUT=1mA→25mA

V_OUT=1.8V,V_BAT=V_CE=0.9V,I_OUT=25mA→1mA

V_OUT

V_LX

I_LX

V_LX

I_LX

I_OUT

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:25mA/div,Time:50s/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:25mA/div,Time:50μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140x331

V_OUT=3.3V,V_BAT=V_CE=1.8V,I_OUT=1mA→50mA

XC9140x331

V_OUT=3.3V,V_BAT=V_CE=1.8V,I_OUT=50mA→1mA

V_OUT

V_LX

I_LX

V_LX

I_LX

I_OUT

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:50mA/div,Time:50μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:50mA/div,Time:50μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

XC9140x501

V_OUT=5.0V,V_BAT=V_CE=3.7V,I_OUT=1mA→100mA

V_OUT=5.0V,V_BAT=V_CE=3.7V,I_OUT=100mA→1mA

V_OUT

V_LX

I_LX

I_OUT

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:100mA/div,Time:50μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

V_OUT:100mV/div,V_LX:5V/div,I_LX:500mA/div,I_OUT:100mA/div,Time:50μs/div

L=4.7μH(VLF302512M-4R7M),C_IN=4.7μF(LMK107BJ475MA),

C_L=10μF(LMK107BJ106MA)

25/28

XC9140 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 the

※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。

side of the package because of it’s

1.5±0.05

structure, but reliability of the package

and strength will not be changed below

the standard.

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

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

26/28

XC9140 (Design Target)

■MARKING RULE

XC9140

Series

① represents product series

MARK

PRODUCT SERIES

XC9140A**1/2**-G

XC9140C**1/2**-G

SOT-25

●SOT-25

4

5

4

② represents output voltage

①

②

③

④

⑤

OUTPUT

MARK

VOLTAGE

1

2

3

0

1

2

3

4

5

6

7

8

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

3.5

3.6

9

A

B

C

D

E

F

2.7

2.8

4.4

4.5

USP-6EL

●USP-6EL

3.7

3.8

3.9

4.0

4.1

4.2

4.3

2.9

3.0

3.1

3.2

3.3

3.4

4.6

4.7

4.8

4.9

5.0

-

1

2

3

6

5

4

H

③ represents product function

UVLO Release

Voltage

OUTPUT

MARK

PRODUCT SERIES

VOLTAGE

N

P

R

S

T

1.8～3.4V

3.5～5.0V

1.8～3.4V

3.5～5.0V

1.8～3.4V

3.5～5.0V

1.8～3.4V

3.5～5.0V

No UVLO

XC9140A**1**-G

2.15

No UVLO

2.15

XC9140A**2**-G

XC9140C**1**-G

XC9140C**2**-G

U

V

X

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

XC9140 Series

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.

prior permission of TOREX SEMICONDUCTOR LTD.

28/28


型号：	XC9140A1824R-G
厂家：	Torex Semiconductor
描述：	Switching Regulator, 开关
文件：	总28页 (文件大小：963K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

XC9140A1824R-G [TOREX]

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