LP28303A-Fast Charger

产品型号 充电电流(mA) 输入电压(V) 电池电压(V) 电池节数 工作模式 温度检测 状态指示 特征 封装 规格书
LP28303A 2500 4.5-5.5 4.2 1 Switching Yes 2 2.5A Large Current,Low Size,OTP,OCP ESOP8/DFN-10

2.5A Synchronous Buck Li-ion Charger

General Description

The LP28303A is a 2.5A Li-Ion battery charger. It utilizes a 600KHz synchronous buck converter topology to reduce power dissipation during charging. Low power dissipation and internal MOSFET allow a physically small charger that can be embedded in a wide range of handheld applications. The LP28303A includes complete charge termination circuitry, automatic recharge and ±1% 4.2V float voltage. Battery charge current, charge timeout and end-of-charge indication parameters are set with external components. Additional features include shorted cell detection; temperature qualified charging and overvoltage protection. The LP28303A is available in a low profile ESOP8&TDFN-10 and package.


 Portable Media Players
 Cellular and Smart mobile phone
 Handheld Battery-Powered Devices
 Handheld Computers
 Charging Docks and Cradles



 Input voltage range 4.5V~5.5V
 Dynamic input current allocation for maximum
charging rate
 2.5A Maximum Charge Current
 No External MOSFETs and Blocking Diode
 Efficiency up to 90%
 Constant-Current/Constant-Voltage Operation
with Thermal Regulation to Maximize Charge
Rate Without Risk of Overheating
 Optional Battery Temperature Monitoring Before
and During Charge Automatic Sleep Mode for
 Over Current Protection
 Consumption Available in ESOP8 &
TDFN-10 3*3mm
 RoHS Compliant and 100% Lead (Pb)-Free

Marking Information

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