TPS51916_12 datasheet(8/34 Pages) TI1

Part #	TPS51916

Description	Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck

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Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

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10

13

PGND

SW

TPS51916

OC

ZC

XCON

15 VBST

12 V5IN

PWM

9

REFIN

TRIP

Delay

20 PGOOD

Control Logic

UDG-12074

10 ?A

+

VREFIN +20%

+

8

VDDQSNS

+

18

14 DRVH

11 DRVL

tON

One-

Shot

UV

OV

VREFIN –32%

16

S5

Soft-Start

+

NOC

+

8 R

6

VREF

R

7

GND

17

S3

5

VTTREF

1

VTTSNS

4

VTTGND

3

VTT

+

2

VLDOIN

7 R

R

VTT Discharge

VTTREF Discharge

Mode

Selection

15 ?A

19 MODE

VREFIN +8/16 %

VREFIN –8/16 %

+

VDDQ

Discharge V5OK

+

4.4 V/3.9 V

UVP

OVP

G

+

1.8 V

Σ

D-CAP: Open,

D-CAP2: Short

TPS51916

SLUSAE1D – DECEMBER 2010 – REVISED JUNE 2012

www.ti.com

FUNCTIONAL BLOCK DIAGRAM

8

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TPS51916 Datasheet(PDF) 8 Page - Texas Instruments

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