Texas Instruments TPS62171

Description

The TPS6217X family is an easy to use synchronous 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.

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).

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.

The device, available in adjustable and fixed output voltage versions, is packaged in an 8-pin WSON package measuring 2 × 2 mm (DSG).

Features

• DCS-ControlTM 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
• 100% Duty Cycle Mode
• Short Circuit Protection
• Over Temperature Protection
• Available in a 2 × 2 mm, WSON-8 Package

REMARKS:-Refer table 2. list of inductorspage no.18

Typical applications

• Digital Still Camera, Video
• POL Supply from Single or Multiple Li-Ion Battery
• Embedded Systems, Mobile PC's, Tablet, Modems
• LDO Replacement
• Standard 12V Rail Supplies

More information

• Datasheet
• IC product information