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LTC3400-1 - 1.2MHz Micropower Synchronous Boost Converter

Description

of the three distinct operating modes follow.

Operation can be best understood by referring to the Block Diagram.

The LTC3400-1 will start up at a typical VIN voltage of 0.85V or higher.

Features

  • Up to 92% Efficiency.
  • Generates 3.3V at 100mA from a Single AA Cell.
  • Low Start-Up Voltage: 0.85V.
  • VOUT Connected to VIN in Shutdown.
  • Internal Synchronous Rectifier.
  • 2.5V to 5V Output Range.
  • Automatic Burst Mode® Operation.
  • Logic Controlled Shutdown (< 1µA).
  • Antiringing Control Minimizes EMI.
  • Tiny External Components.
  • Low Profile (1mm) SOT-23 Package U.

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Full PDF Text Transcription

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U U LTC3400-1 600mA, 1.2MHz Micropower Synchronous Boost Converter in ThinSOT FEATURES ■ Up to 92% Efficiency ■ Generates 3.3V at 100mA from a Single AA Cell ■ Low Start-Up Voltage: 0.85V ■ VOUT Connected to VIN in Shutdown ■ Internal Synchronous Rectifier ■ 2.5V to 5V Output Range ■ Automatic Burst Mode® Operation ■ Logic Controlled Shutdown (< 1µA) ■ Antiringing Control Minimizes EMI ■ Tiny External Components ■ Low Profile (1mm) SOT-23 Package U APPLICATIO S ■ Pagers ■ MP3 Players ■ Digital Cameras ■ LCD Bias Supplies ■ Handheld Instruments ■ Wireless Handsets ■ GPS Receivers DESCRIPTIO The LTC®3400-1 is a synchronous, fixed frequency, stepup DC/DC converter delivering high efficiency in a 6-lead ThinSOT™ package. Capable of supplying 3.
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