60

70

80

90

100

0

2

4

6

8

10

12

Output Current (A)

Vout = 0.6 V

Vout = 1 V

Vout = 1.2 V

Vout = 1.5 V

Vout = 1.8 V

Vout = 2.5 V

Vout = 3.3 V

Vout = 5 V

C003

f

T

V

V

V

V

V

V

V

V

TPS53515

1

2

3

4

5

6

7

8

9

22

21

20

19

18

17

16

15

PGND

10

EN

11

12

13

14

PGND

PGND

PGND

PGND

PGOOD

23

28

GND2

27

GND1

26

DNC

25

TRIP

24

VO

Thermal Pad

VREG

TPS53515

www.ti.com

SLUSBN5A – AUGUST 2013 – REVISED DECEMBER 2013

1.5 to 18 V (4.5 to 25 V bias) Input, 12-A Single Synchronous Step-Down SWIFT™

Converter

1

FEATURES

APPLICATIONS

2

•

Integrated 13.8 and 5.9 m

Ω MOSFETs With

•

Server and Cloud-Computing POLs

12-A Continuous Output Current

•

Broadband, Networking, and Optical

•

Supports All Ceramic Output Capacitors

Communications Infrastructure

•

Reference Voltage 600 mV ±0.5% Tolerance

•

I/O Supplies

•

Output Voltage Range: 0.6 V to 5.5 V

•

Supported at the WEBENCH™ Design Center

•

D-CAP3™ Control Mode With Fast Load-Step

DESCRIPTION

Response

The TPS53515 is a small-sized, synchronous buck

•

Auto-Skipping Eco-mode™ for High Light-

converter with an adaptive on-time D-CAP3™ control

Load Efficiency

mode.

The

device

offers

ease-of-use

and

low

•

FCCM for Tight Output Ripple and Voltage

external-component count for space-conscious power

Requirements

systems.

•

Eight Selectable Frequency Settings from

This device features high-performance integrated

200 kHz to 1 MHz

MOSFETs, accurate 0.5% 0.6-V reference, and an

•

Pre-Charged Startup Capability

integrated boost switch. Competitive features include

very-low

external-component

count,

fast

load-

•

Built-in Output Discharge Circuit

transient

response,

auto-skip

mode

operation,

•

Open-Drain Power-Good Output

internal soft-start control, and no requirement for

•

3.5 mm × 4.5 mm , 28-Pin, QFN Package

compensation

A forced continuous conduction mode helps meet

tight voltage regulation accuracy requirements for

performance DSPs and FPGAs. The TPS53515 is

available in a 28-pin QFN package and is specified

from –40°C to +85°C ambient temperature.

.

.

EFFICIENCY

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

SWIFT, D-CAP3, Eco-mode, WEBENCH are trademarks of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2013, 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.