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LTC3552 - Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter

Features

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

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Full PDF Text Transcription

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U U LTC3552 FEATURES Standalone Linear Li-Ion Battery Charger and Dual Synchronous Buck Converter DESCRIPTIO ■ 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.
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