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LTC4080 - 500mA Standalone Li-Ion Charger

General Description

The LTC®4080 is a complete constant-current/constantvoltage linear battery charger for a single-cell 4.2V lithium-ion battery with an integrated 300mA synchronous buck converter.

The small packages and low external component count make the LTC4080 especially suitable for portable applications.

Key Features

  • nn Complete Linear Battery Charger with Integrated Buck Converter Battery Charger: nn Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charge Rate without Risk of Overheating nn Internal 4.5-Hour Safety Timer for Termination nn Charge Current Programmable Up to 500mA with 5% Accuracy nn C/10 Charge Current Detection Output nn 5µA Supply Current in Shutdown Mode Switching Regulator: nn High Efficiency Synchronous Buck Converter nn 300mA Output Current nn 2.7V to 4.5V.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FEATURES nn Complete Linear Battery Charger with Integrated Buck Converter Battery Charger: nn Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charge Rate without Risk of Overheating nn Internal 4.5-Hour Safety Timer for Termination nn Charge Current Programmable Up to 500mA with 5% Accuracy nn C/10 Charge Current Detection Output nn 5µA Supply Current in Shutdown Mode Switching Regulator: nn High Efficiency Synchronous Buck Converter nn 300mA Output Current nn 2.7V to 4.5V Input Range (Powered from BAT Pin) nn 0.8V to VBAT Output Range nn MODE Pin Selects Fixed (2.