LTC4121 Datasheet | Linear Technology

LTC4121/LTC4121-4.2 40V 400mA Synchronous Step-Down Battery Charger Features nn Wide Input Voltage Range: 4.4V to 40V nn Temperature pensated Input Voltage Regulation for Maximum Power Point Tracking (MPPT) nn Adjustable Float Voltage 3.5V to 18V (LTC4121) nn Fixed 4.2V Float Voltage Option (LTC4121-4.2) nn High Efficiency: Up to 95% nn 50mA to 400mA Programmable Charge Current nn ±1% Feedback Voltage Accuracy nn Programmable 5% Accurate Charge Current nn Thermally Enhanced, Low Profile (0.75mm) 16-Lead (3mm × 3mm) QFN Package APPLICATIONS nn Handheld Instruments nn Solar Powered Devices nn Industrial/Military Sensors and Devices L, LT, LTC, LTM, Linear Technology, the Linear logo and...