LTC3552

PRODUCTION

Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter

Part Details

  • Programmable Charge Current Up to 950mA
  • Complete Linear Charger and Dual DC/DC Regulator
  • Buck Converter Output Voltage from 0.6V to 5V
  • No MOSFET, Sense Resistor or Blocking Diode Required
  • Thermal Regulation Maximizes Charge Rate Without Risk of Overheating*
  • Charges Directly from a USB Port
  • Programmable Charge Current Termination
  • Preset 4.2V Charge Voltage with ±1% Accuracy
  • Charge Current Monitor Output for Gas Gauging*
  • Automatic Recharge
  • Charge Status Output
  • “Power Present” Output
  • 2.9V Trickle Charge Threshold
  • Soft-Start Limits Inrush Current
  • Low Quiescent Current Buck Converter (40µA)
  • Current Mode Operation, Constant Frequency (2.25MHz)
  • Low Profile (5mm × 3mm × 0.75mm) DFN Package
LTC3552
Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • LTC3552
  • LTC3552-1
LTspice

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.


Evaluation Kits

eval board
DC1061A

LTC3552EDHC Demo Board

Product Details

DC1061A: Demo Board for the LTC3552 Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter.

DC1061A
LTC3552EDHC Demo Board

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