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LTC4126 - 7.5mA Wireless Li-Ion Charger

General Description

The LTC®4126 is a low-power wireless single-cell Li-Ion battery charger with an integrated step-down DC/DC regulator.

The step-down regulator is a low-noise multi-mode charge pump which is powered from the battery and provides a regulated 1.2V at the output.

Key Features

  • n Wireless Li-Ion Battery Charger Plus High Efficiency Multi-Mode Charge Pump DC/DC n Wideband Rx Frequency: DC to >10MHz n Integrated Rectifier with Overvoltage Limit n Pin Selectable Charge Voltage: 4.2V or 4.35V n Charge Current: 7.5mA (Fixed) n Low Battery Disconnect: 3.0V n NTC Pin for Temperature Qualified Charging n DC/DC Regulated Output: 1.2V n DC/DC Output Current: Up to 60mA n 50kHz/75kHz Switching, No Audible Noise n Pushbutton and/or Digital on/off Control for DC/DC n Thermally Enha.

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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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LTC4126 7.5mA Wireless Li-Ion Charger with 1.2V Step-Down DC/DC Converter FEATURES n Wireless Li-Ion Battery Charger Plus High Efficiency Multi-Mode Charge Pump DC/DC n Wideband Rx Frequency: DC to >10MHz n Integrated Rectifier with Overvoltage Limit n Pin Selectable Charge Voltage: 4.2V or 4.35V n Charge Current: 7.5mA (Fixed) n Low Battery Disconnect: 3.0V n NTC Pin for Temperature Qualified Charging n DC/DC Regulated Output: 1.