MPS > Switching Chargers > MP2623  



Product Info

Stand-Alone, 2A, 1- or2-Cell Switching LiFePO4 Battery Charger


The MP2623 is a monolithic, DC-DC, step-down, switching charger for a 1-or-2-cell serial LiFePO4 battery. It has an integrated high-side power MOSFET that can output up to a 2A charge current. It also has peak-current–mode control for fast loop response and easy compensation.  The MP2623 uses a sense resistor to control a programmable charge current, and accurately regulates the charge current and the charge voltage using two control loops.  The MP2623 has multiple fault-condition protections that include cycle-by-cycle current limiting and thermal shutdown. Other safety features include battery temperature monitoring and protection, charge status indication and a programmable timer to halt charging after a set time period.  The MP2623 requires a minimal number of readily-available external components.  The MP2623 is available in a 4mm×4mm 16-pin QFN package.


• Charges 1- and 2-Cell LiFePO4 Battery Packs
• Wide Operating-Input Range
• Programmable Charging Current of up to 2A
• ±0.75% VBATT Accuracy
• 0.2Ω Integrated Power MOSFET
• Up to 90% Efficiency
• Fixed 1.1MHz Frequency
• Preconditioning for Fully-Depleted Batteries
• Charging Status Indicator
• Input Supply Fault Indicator
• Thermal Shutdown
• Cycle-by-Cycle Over-Current Protection
• Battery Temperature Monitor and Protection

Typical Application


Efficiency Curve


Vin (Min) (V)


Vin (Max) (V)


# of Cells


Icharge (A)

Up to 2.0 

Trickle Charge


Charge Status


Charge Type

CV/CC Switching 

Switching Freq (kHz)


Package 1


Datasheet Download

Click here to download datasheet 

Eval Board Download



Click here to buy 
©2010 Monolithic Power Systems, Inc. All Rights Reserved