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TPS61122 Datasheet Synchronous Boost Converter

Manufacturer: Texas Instruments

Overview: Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS61120, TPS61121, TPS61122 SLVS427D – JUNE 2002 – REVISED MAY 2015 TPS6112x Synchronous Boost Converter With 1.

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

General Description

The TPS6112x devices provide a complete power supply solution for products powered by either a onecell Li-Ion or Li-Polymer by either a one-cell Li-Ion or Li-Polymer battery, or a two- to four-cell Alkaline, NiCd, or NiMH battery.

The devices can generate two stable output voltages that are either adjusted by an external resistor divider or are fixed internally on the chip.

The device also provides a simple solution for generating 3.3 V out of a one-cell Li-Ion or Li-Polymer battery at a maximum output current of at least 200 mA with supply voltages down to 1.8 V.

Key Features

  • 1 Synchronous, 95% Efficient, Boost Converter With 500-mA Output Current From 1.8-V Input.
  • Integrated 200-mA Reverse Voltage Protected LDO for DC-DC Output Voltage Post Regulation or Second Output Voltage.
  • 40-µA (Typical) Total Device Quiescent Current.
  • Input Voltage Range: 1.8 V to 5.5 V.
  • Fixed and Adjustable Output Voltage Options up to 5.5 V.
  • Power Save Mode for Improved Efficiency at Low Output Power.
  • Low Battery Comparator.

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