TPS62177

VIN

EN

SLEEP

AGND

PGND

SW

VOS

PG

FB

NC

4.75 to 28V

3.3V/0.5A

10uH

22uF

2.2uF

100k

TPS62175, TPS62177

www.ti.com

SLVSB35A – OCTOBER 2012 – REVISED NOVEMBER 2012

28V, 0.5A Step-Down Converter with Sleep Mode

Check for Samples: TPS62175, TPS62177

1

FEATURES

DESCRIPTION

The TPS62175/7 is a high efficiency synchronous

2

•

DCS-Control™ Topology

step-down DC-DC converter, based on the DCS-

•

Input Voltage Range 4.75 to 28V

Control™ topology.

•

Quiescent Current typ. 4.8µA (Sleep Mode)

With a wide operating input voltage range of 4.75 to

•

100% Duty Cycle Mode

28V, the device is ideally suited for systems powered

•

Active Output Discharge

from multi cell Li-Ion as well as 12V and even higher

intermediate supply rails, providing up to 500mA

•

Power Good Output

output current.

•

Output Current of 500mA

The TPS62175/7 automatically enters Power Save

•

Output Voltage Range 1V to 6V

Mode at light loads, to maintain high efficiency across

•

Switching Frequency of Typically 1MHz

the whole load range. As well, it features a Sleep

•

Seamless Power Save Mode Transition

Mode to supply applications with advanced power

save modes like ultra low power micro controllers.

•

Undervoltage Lockout

The Power Good output may be used for power

•

Short Circuit Protection

sequencing and/or Power On Reset.

•

Over Temperature Protection

The device features a typical quiescent current of

•

Available in 2 x 3 mm 10-pin WSON Package

22uA in normal mode and 4.8uA in Sleep Mode. In

Sleep Mode, the efficiency at very low load currents

APPLICATIONS

can be increased by as much as 20%. In shutdown

mode, the shutdown current is less than 2uA and the

•

General 12V/24V Point Of Load Supply

output is actively discharged.

•

Ultra Mobile PC, Embedded PC

The TPS62175/7, available in an adjustable and a

•

Low Power Supply for Microprocessor

fixed output voltage version, is packaged in a small

•

High Efficiency LDO Alternative

2x3mm 10-pin WSON package.

•

Industrial Sensors

spacingspacing

spacingspacing

spacingspacing

Figure 1. Typical Application and 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

DCS-Control is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date.

Copyright © 2012, 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.