IN 1

IN 2

IN 3

EN 1

SS1

EN 2

SS2

EN 3

IS 1

SW 1

FB 1

IS 2

SW 2

FB 2

OU T3

FB 3

DG ND

3A

BU CK 1

3A

BU CK 2

300m A

LD O

SS3

DGND

AG ND

DGND

TPS75003

+

+

2.5Vat300mA

3.3Vat3A

1.2Vat3A

5V _Input

TPS75003

www.ti.com

SBVS052I – OCTOBER 2004 – REVISED AUGUST 2010

Triple-Supply Power Management IC

for Powering FPGAs and DSPs

Check for Samples: TPS75003

1

FEATURES

DESCRIPTION

23

•

Two 95% Efficient, 3A Buck Controllers and

The TPS75003 is a complete power management

One 300mA LDO

solution for FPGA, DSP and other multi-supply

applications. The device has been tested with and

•

Tested and Endorsed by Xilinx for Powering

meets all of the Xilinx Spartan-3, Spartan-3E and

the Spartan™-3, Spartan-3E and Spartan-3L

Spartan-3L start-up profile requirements, including

FPGAs

monotonic voltage ramp and minimum voltage rail

•

Adjustable (1.2V to 6.5V for Bucks, 1.0V to

rise time. Independent Enables for each output allow

6.5V for LDO) Output Voltages on All Channels

sequencing to minimize demand on the power supply

at start-up. Soft-start on each supply limits inrush

•

Input Voltage Range: 2.2V to 6.5V

current

during

start-up.

Two

integrated

buck

•

Independent Soft-Start for Each Supply

controllers

allow

efficient,

cost-effective

voltage

•

Independent Enable for Each Supply for

conversion for both low and high current supplies

Flexible Sequencing

such as core and I/O. A 300mA LDO is integrated to

•

LDO Stable with 2.2mF Ceramic Output Cap

Spartan-3 FPGA. All three supply voltages are

•

Small, Low-Profile 4.5mm x 3.5mm x 0.9mm

offered in user-programmable options for maximum

QFN Package

flexibility.

The TPS75003 is fully specified from –40°C to +85°C

APPLICATIONS

and is offered in a QFN package, yielding a highly

•

FPGA/DSP/ASIC Supplies

compact

total

solution

size

with

high

power

•

Set-Top Boxes

dissipation capability.

•

DSL Modems

•

Plasma TV Display Panels

1

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.

2

Spartan is a trademark of Xilinx, Inc.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2004–2010, 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.