Datasheet > TPS62171

TPS62171

更新时间： 2022-04-02 12:03:17

品牌	Logo	应用领域
德州仪器 - TI		转换器分布式控制系统 DCS
页数	文件大小	规格书
33页	1685K
描述
3-17V 0.5A Step-Down Converter with DCS-ControlTM

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TPS62171 数据手册

TPS62170, TPS62171

TPS62172, TPS62173

www.ti.com

SLVSAT8A –NOVEMBER 2011–REVISED APRIL 2012

3-17V 0.5A Step-Down Converter with DCS-Control^TM

Check for Samples: TPS62170, TPS62171, TPS62172, TPS62173

FEATURES

DESCRIPTION

The TPS6217X family is an easy to use synchronous

•

DCS-Control^TMTopology

step down DC-DC converter optimized for

applications with high power density. A high switching

frequency of typically 2.25MHz allows the use of

small inductors and provides fast transient response

as well as high output voltage accuracy by utilization

of the DCS-Control™ topology.

Input Voltage Range: 3 to 17 V

Up to 500 mA Output Current

Adjustable Output Voltage from 0.9 to 6 V

Fixed Output Voltage Versions

Seamless Power Save Mode Transition

Typically 17µA Quiescent Current

Power Good Output

With its wide operating input voltage range of 3V to

17V, the devices are ideally suited for systems

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

as from 12V intermediate power rails. It supports up

to 0.5A continuous output current at output voltages

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

100% Duty Cycle Mode

Short Circuit Protection

Over Temperature Protection

Available in a 2 × 2 mm, WSON-8 Package

Power sequencing is also possible by configuring the

Enable and open-drain Power Good pins.

In Power Save Mode, the devices show quiescent

current of about 17μA from VIN. Power Save Mode,

entered automatically and seamlessly if load is small,

maintains high efficiency over the entire load range.

In Shutdown Mode, the device is turned off and

shutdown current consumption is less than 2μA.

APPLICATIONS

•

Standard 12V Rail Supplies

POL Supply from Single or Multiple Li-Ion

Battery

•

LDO Replacement

The device, available in adjustable and fixed output

voltage versions, is packaged in an 8-pin WSON

package measuring 2 × 2 mm (DSG).

Embedded Systems

Digital Still Camera, Video

Mobile PC's, Tablet, Modems

spacing

(3 .. 17)V

2.2µH

1.8V / 0.5A

VIN

VOS

100k

10uF

TPS62171

22uF

AGND

PGND

Figure 1. Typical Application and Efficiency

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...33

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