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

Product Overview

Linear Technology

Part number	LTC4121-4.2
Manufacturer	Linear Technology
File Size	373.79 KB
Description	40V 400mA Synchronous Step-Down Battery Charger
Datasheet	LTC4121-4.2 Datasheet
Note	This datasheet PDF includes multiple part numbers: LTC4121-4.2, LTC4121. Please refer to the document for exact specifications by model.
Additional preview pages of the LTC4121-4.2 datasheet.

The LTC®4121 is a 400mA 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 open-circuit voltage.

nn Wide Input Voltage Range: 4.4V to 40V nn Temperature Compensated 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.

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Published: Mar 21, 2016 |