600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.63
  • Up to 92% Efficiency
  • Generates 3.3V at 100mA from a Single AA Cell
  • Low Start-Up Voltage: 0.85V
  • 1.2MHz Fixed Frequency Switching
  • Internal Synchronous Rectifier
  • 2.5V to 5V Output Range
  • Automatic Burst Mode® Operation (LTC3400)
  • Continuous Switching at Light Loads (LTC3400B)
  • Logic Controlled Shutdown (<1µA)
  • Antiringing Control Minimizes EMI
  • Tiny External Components
  • Low Profile (1mm) SOT-23 Package
Additional Details
show more Icon

The LTC3400/LTC3400B are synchronous, fixed frequency, step-up DC/DC converters delivering high efficiency in a 6-lead ThinSOT package. Capable of supplying 3.3V at 100mA from a single AA cell input, the devices contain 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 features automatic shifting to power saving Burst Mode operation at light loads, while the LTC3400B features continuous switching at light loads. Antiringing control circuitry reduces EMI concerns by damping the inductor in discontinuous mode, and the devices feature low shutdown current of under 1µA.

Both devices are available in the low profile (1mm) SOT-23 package.

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
Part Models 2
1ku List Price Starting From $2.63

close icon


Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
  • HTML
  • HTML
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image


LTC3400BES6 | 1.2MHz, High Efficiency Synchronous Boost Converter, VIN = 1V to 3V, VOUT = 3.3V @ 90mA

Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Recently Viewed