Features and Benefits

  • 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

Product Details

The LTC3400-1 is a synchronous, fixed frequency, stepup DC/DC converter delivering high efficiency in a 6-lead ThinSOT package. Capable of supplying 3.3V at 100mA from a single AA cell input, the device contains an internal NMOS switch and PMOS synchronous rectifier.

A switching frequency of 1.2MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. The LTC3400-1 features automatic shifting to power saving Burst Mode operation at light loads. In shutdown, VOUT and VIN are connected, which allows the input battery to be used for backup power. The LTC3400-1 features low shutdown current of under 1µA.

The LTC3400-1 is offered in the low profile (1mm)SOT-23 package.

US Patent Numbers 5,481,178; 6,580,258; 6,304,066; 6,127,815; 6,498,466; 6,611,131.

LTC3400 Burst Mode
LTC3400B Burst Mode Disabled
LTC3400-1 Connects Vin to Vout In Shutdown


  • Pagers
  • MP3 Players
  • Digital Cameras
  • LCD Bias Supplies
  • Handheld Instruments
  • Wireless Handsets
  • GPS Receivers

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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Design Resources

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