TPS65130 Datasheet_PDF文件下载_芯片资料查询

Actual Size

4 mm x 4 mm

TPS65130, TPS65131

SLVS493B 鈥?MARCH 2004 鈥?REVISED SEPTEMBER 2004

www.ti.com

POSITIVE AND NEGATIVE OUTPUT DC-DC CONVERTER

FEATURES

鈥?/div>

Dual Adjustable Output Voltages Up to +15 V

and Down to 鈥?5 V

800-mA Typical Switch Current Limit at Boost

and Inverter Main Switches at TPS65130

2-A Typical Switch Current Limit at Boost and

Inverter Main Switches at TPS65131

Up to 89% Efficiency at Positive Output

Voltage Rail

Up to 81% Efficiency at Negative Output

Voltage Rail

Power-Save Mode for High Efficiency at Low

Load Currents

Independent Enable Inputs for Power Up and

Power Down Sequencing

Control Output for External PFET to Support

Completely Disconnecting the Battery

2.7-V to 5.5-V Input Voltage Range

Minimum 1.25-MHz Fixed Frequency PWM

Operation

Thermal Shutdown

Overvoltage Protection on Both Outputs

1-碌A Shutdown Current

Small 4 mm x 4 mm QFN-24 Package (RGE)

Q1

L1

4.7

mH

C1

4.7

mF

INP

BSW

INN

R7

C2

4.7

mF

VIN

ENP

C3

0.1

mF

PSP

ENN

PSN

GND

U1

R2

VPOS

FBP

VREF

FBN

VNEG

OUTN

CP

CN

PGND

C7

C6

D2

L2

4.7

mH

C5

22

mF

V

NEG

R4

R3

C8

0.22

mF

D1

R1

C4

22

mF

APPLICATIONS

鈥?/div>

Small to Medium Size OLED Displays

(TFT) LCD and CCD Bias Supply

PDAs, Pocket PCs, Smartphones

Digital Cameras

Camcorders

DESCRIPTION

The TPS65130/1 is dual-output dc-dc converter gen-

erating a positive output voltage up to 15 V and a

negative output voltage down to -15 V with output

currents in a 200-mA range in typical applications,

depending on input voltage to output voltage ratio.

With a total efficiency up to 85%, the device is ideal

for portable battery-powered equipment. The input

voltage range of 2.7 V to 5.5 V allows the

TPS65130/1 to be directly powered from a Li-ion

battery, from 3 cells NiMH/NiCd or alkaline batteries.

The TPS65130/1 comes in a small 4 mm x 4 mm

QFN-24 package. Together with a minimum switching

frequency of 1.25 MHz it enables designing small

power supply applications because it requires only a

few small external components.

V

POS

TPS65130

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

TPS65131

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