LTC4121/LTC4121-4.2 – 40V 400mA Synchronous Step-Down Battery Charger

Features Wide Input Voltage Range: 4.4V to 40V Temperature Compensated Input Voltage Regulation for Maximum Power Point Tracking (MPPT) Adjustable Float Voltage 3.5V to 18V (LTC4121) Fixed 4.2V Float Voltage Option (LTC4121-4.2) High Efficiency: Up to 95% 50mA to 400mA Programmable Charge Current ±1% Feedback Voltage Accuracy Programmable 5% Accurate Charge Current Thermally Enhanced, Low Profile (0.75mm) 1 ...

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