www.ti.com

FEATURES

APPLICATIONS

DESCRIPTION

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

LDRV1

VIN5

SW1

HDRV1

BOOT1

OVSET

VOUT

GSNS

DIFFO

CS1

CSRT1

COMP

VREF

DROOP

FB

PGND

LDRV2

SW2

HDRV2

BOOT2

SS

UVLO

BP5

AGND

CS2

CSRT2

RT

PGOOD

ILIM

EN/SYNC

DBT PACKAGE

(TOP VIEW)

RHB PACKAGE

(TOP VIEW)

32 31 30

29 28 27 26 25

24

23

22

21

20

19

18

17

9 10 11 12 13

15 16

BOOT1

OVSET

VOUT

GSNS

DIFFO

CS1

CSRT1

NC

NC

BOOT2

SS

UVLO

BP5

AGND

CS2

CSRT2

14

1

2

3

4

5

6

7

8

TPS40130

SLUS602B – JUNE 2004 – REVISED SEPTEMBER 2005

TWO-PHASE, SYNCHRONOUS BUCK CONTROLLER WITH INTEGRATED MOSFET

DRIVERS

• Graphic Cards

• Two-Phase Interleaved Operation

• Internet Servers

• 3-V to 40-V Power Stage Operation Range

• Networking Equipment

• Supports Up to 6-V V

• Telecommunications Equipment

• Requires VIN5 @ 50 mA, Typical, Depending

• DC Power Distributed Systems

on External MOSFETs and Switching

Frequency

• 1-µA Shutdown Current

The TPS40130 is a two-phase synchronous buck

• Programmable Switching Frequency up to 1

controller that is optimized for low-output voltage,

MHz/Phase

high-output current applications powered from a

• Current Mode Control with Forced Current

supply between 3 V and 40 V. A multi-phase

Sharing

converter offers several advantages over a single

power stage including lower current ripple on the

• Better than 1% Internal 0.7-V Reference

input and output capacitors, faster transient response

• Resistive Divider Sets Direct Output Over

to load steps, improved power handling capabilities,

Voltage Threshold and Sets Input

and higher system efficiency.

Undervoltage Lockout

Each

phase

can

be

operated

at

a

switching

• True Remote Sensing Differential Amplifier

frequency up to 1 MHz, resulting in an effective

• Resistive or Inductor’s DCR Current Sensing

ripple frequency of up to 2 MHz at the input and the

• 30-pin TSSOP or 32-Pin QFN Packages

output. The two phases operates 180 degrees

out-of-phase.

• Can Be Used with TPS40120 to Provide a 6-Bit

Digitally Controlled Output

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.