22uF

1.8V / 3A

10uF

1 / 2.2 µH

(3 .. 17)V

3.3nF

TPS62131

PVIN

AVIN

EN

SS/TR

DEF

FSW

SW

VOS

PG

FB

AGND

PGND

100k

0.1uF

TPS62130

TPS62131, TPS62132, TPS62133

www.ti.com

SLVSAG7

– NOVEMBER 2011

3-17V 3A Step-Down Converter in 3x3 QFN Package

Check for Samples: TPS62130, TPS62131, TPS62132, TPS62133

1

FEATURES

DESCRIPTION

The TPS6213X family is an easy to use synchronous

•

step

down

DC-DC

converter

optimized

for

•

Input Voltage Range: 3 to 17V

applications with high power density. A high switching

•

Up to 3A Output Current

frequency of typically 2.5MHz allows the use of small

inductors and provides fast transient response as well

•

Adjustable Output Voltage from 0.9 to 6V

as high output voltage accuracy by utilization of the

•

Pin-Selectable Output Voltage (nominal, + 5%)

DCS-Control

™ topology.

•

Programmable Soft Start and Tracking

With its wide operating input voltage range of 3V to

•

Seamless Power Save Mode Transition

17V, the devices are ideally suited for systems

•

Quiescent Current of 17

µA (typ.)

powered from either a Li-Ion or other batteries as well

as from 12V intermediate power rails. It supports up

•

Selectable Operating Frequency

to 3A continuous output current at output voltages

•

Power Good Output

between 0.9V and 6V (with 100% duty cycle mode).

•

100% Duty Cycle Mode

The output voltage startup ramp is controlled by the

•

Short Circuit Protection

soft-start pin, which allows operation as either a

•

Over Temperature Protection

standalone power supply or in tracking configurations.

Power sequencing is also possible by configuring the

•

Available in a 3

× 3 mm, QFN-16 Package

Enable and open-drain Power Good pins.

APPLICATIONS

In Power Save Mode, the devices show quiescent

current of about 17

μA from VIN. Power Save Mode,

•

Standard 12V Rail Supplies

entered automatically and seamlessly if load is small,

•

POL Supply from Single or Multiple Li-Ion

maintains high efficiency over the entire load range.

Battery

In Shutdown Mode, the device is turned off and

•

Solid-State Disk Drives

shutdown current consumption is less than 2

μA.

•

Embedded Systems

The device, available in adjustable and fixed output

voltage versions, is packaged in a 16-pin QFN

•

LDO replacement

package measuring 3

× 3 mm (RGT).

•

Mobile PC's, Tablet, Modems, Cameras

spacing

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.

PRODUCTION DATA information is current as of publication date.

Copyright

© 2011, 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.