TPS51317_15 datasheet(7/28 Pages) TI

Part #	TPS51317

Description	3.3-V/5-V Input, 6-A, D-CAP??Mode Synchronous Step-Down Integrated FETs Converter

Download	28 Pages

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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7 / 28 page

1

11

PGND

SW

TPS51317

OC

ZC

XCON

16

BST

18

V5IN

PWM

10

19

PGOOD

Control Logic

UDG-11058

+

V

REFIN

+20%

+

VOUT

+

t

ON

One-

Shot

UV

OV

V

REFIN

–30%

+

8 R

8

COMP

R

6

GND

7

VREF

On-Time

Selection

15 mA

18

MODE

V

REFIN

16 %

V

REFIN

16 %

+

Discharge

UVP

OVP

Current

Sense

+

VS

Smplifier

Current Sense

Amplifier

SW

PGND

4

5

VIN

12

SW

13

SW

14

SW

15

SW

2

PGND

3

PGND

17

EN

Delay

On/Off Time

Minimum On/Off

SKIP/RR (OTP)

OCL/OVP/UVP

DIsharge

+

9

REFIN

SS

Ramp

Comp

VBG

ZC Threshold

Modulation

PGND

GND

TPS51317

www.ti.com

SLUSAH9

– MARCH 2011

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TPS51317 Datasheet(PDF) 7 Page - Texas Instruments

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