LTC3525L-3
Info : RECOMMENDED FOR NEW DESIGNS
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LTC3525L-3

400mA Micropower Synchronous Step-Up DC/DC Converter with Output Disconnect

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $2.30
Features
  • Start-Up at 0.7V Typical, 0.88V Guaranteed
  • Up to 95% Efficiency
  • Output Disconnect and Inrush Current Limit
  • 3V Fixed Output Voltage
  • Delivers 65mA at 3V from a 1V Input or 160mA from a 1.8V Input
  • Burst Mode® Operation: IQ = 7μA
  • VIN: 0.5V to 4.5V
  • Only Three External Components
  • VIN > VOUT Operation
  • <1μA Shutdown Current
  • Anti-Ringing Control
  • Short-Circuit and Overtemperature Protection
  • Tiny 6-Pin SC70 Package
Additional Details
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The LTC3525L-3 is a high efficiency synchronous step-up DC/DC converter with output disconnect that can start up with an input as low as 0.7V. It offers a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline applications. Only three small external components are required. The LTC3525L-3 generates a fixed 3V output voltage.

The device includes a 0.5Ω N-channel MOSFET switch and a 0.85Ω P-channel synchronous rectifier. Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency. Quiescent current is an ultralow 7μA, maximizing battery life in portable applications.

Other features include <1μA shutdown current, anti-ringing control and thermal shutdown. The LTC3525L-3 is available in a tiny 6-pin SC70 package.

Vout Min Startup Voltage Features
LTC3525-3/3.3/5 3V/3.3V/5V 1V Output Disconnect
LTC3525D-3.3 3.3V 0.85V Pass Through Mode
LTC3525L-3 3V 0.85V Output Disconnect

Applications

  • MP3 Players
  • Portable Instruments
  • Glucose Meters
  • Digital Cameras
Part Models 2
1ku List Price Starting From $2.30

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC3525LESC6-3#TRMPBF
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LTC3525LESC6-3#TRPBF
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Software & Part Ecosystem

Software & Part Ecosystem

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.

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