LTC4121
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 50m A to 400m A 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
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DESCRIPTION
The LTC®4121 is a 400m A constant-current/constantvoltage (CC/CV) synchronous step-down battery charger. In addition to CC/CV operation, the LTC4121 regulates its input voltage to a programmable percentage of the input...
