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TPS62273 Datasheet 2.25 Mhz 400-ma Step Down Converter

Manufacturer: Texas Instruments

Overview: TPS62270, TPS62272 TPS62273 www.ti.com ........................................................................................................................................... SLVS799C – NOVEMBER 2007 – REVISED JANUARY 2009 2.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The TPS62270 device is a high efficiency synchronous step down DC-DC converter optimized for battery powered portable applications.

It provides up to 400 mA output current from a single Li-Ion cell.

With an input voltage range of 2 V to 6 V the device supports Li-Ion batteries with extended voltage range, and is ideal to power portable applications like mobile phones and other portable equipment.

Key Features

  • 1.
  • 2 High Efficiency Step Down Converter.
  • Output Current up to 400 mA.
  • VIN Range From 2V to 6V for Li-Ion Batteries With Extended Voltage Range.
  • 2.25 MHz Fixed Frequency Operation.
  • Pin-Selectable Fixed Output Voltage.
  • Power Save Mode for Highest Efficiency.
  • Automatic transition between PFM and PWM Mode.
  • Voltage Positioning in PFM Mode.
  • Typical 15-µA Quiescent Current.
  • 100% Duty Cycle for Lowest Dropout.

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