Switching Charger(FastCharger)

LP28400A-Switching Charger
2000Charge Current(mA):
3.0-12Input Voltage(V):
8.4/8.7/8.8Battery Voltage (V) :
YesTemperature Monitor:
1State Monitor:
USB Boost charge 2/3cellsSpecial Features:

2 cell Li-ion Battery Charge from 3V~12V Input

General Description

The LP28400A is a complete constant-current/ constant voltage switching charger for multi cell lithium-ion batteries. Boost+Linear charger work with a USB 2.0 compliant power IC assuring 2 cell LiIon battery charging. When the battery voltage is low, the charger works in linear operation mode. Along with the charging the battery voltage is higher the charger will transfer to Boost operation mode smoothly. When the battery voltage <6V, switch to wake-up current charging. Other features include charge current monitor, under voltage lockout, automatic recharge and a status pin to indicate charge termination.


 2 cell Li-Ion handheld devices
 POS device
 Bluetooth speaker
 USB powered devices



 Adapter Adaptive
 Input voltage range 3V~12V
 Integrated low side power mosfet
 Simple structure and perfect transition between
 Linear and Boost operation
 Programmable charge current and CV voltage
 Dynamic input current allocation for maximum charging rate
 Automatically switches to wake-up current when charging over-discharged batteries
 Over Current Protection
 Over Temperature Protection
 Consumption Available in ESOP8 & QFN16(3mm*3mm) Package
 RoHS Compliant and 100% Lead (Pb)-Free


Marking Information

Please see specification. 
Please ask our service mailbox for what you want which is marketing@lowpowersemi.com.
We will send a copy to you as fast as we can.


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