Single-Cell 150mA Linear Li-Ion Battery Charger



The MP2603 is a low cost single cell Li-ion battery charger IC suitable for low charge current applications. It features constant current (CC) and constant voltage (CV) charging modes with programmable charge current (50mA-150mA), trickle charge and charge status indication. The MP2603 is enabled with an input supply voltage greater than 3.5V. The charger IC is disabled when unplugged from the AC adaptor. To minimize the charger?s total solution cost, the MP2603 does not need an external reverse blocking diode, a precision current-sense resistor or a compensation capacitor at the output. MP2603 is available in a 5-pin TSOT23 package.


  • VIN Surge Up to 25V
  • 0.75% VBATT Accuracy
  • Low Battery Reverse Current, (< 1uA)
  • Programmable Charge Current
  • Over Temperature Protection
  • Over Current Protection
  • Charge Status Indication
  • Over Charge Protection
  • No External Sense Resistor Required
  • No External Reverse Blocking Diode Required
  • No Output Capacitor Required for Stability


  • Icharge (max) (A)0.15
  • Vbatt (max) (V)4.2
  • Operating Vin (max) (V)5.25
  • Absolute Vin (max) (V)25
  • Vbatt (min) (V)4.2
  • NTC MonitoringNo
  • Operating Vin (min) (V)2.8
  • Special FeaturesThermal Regulation, USB Compatible
  • GradeCatalog
  • Charge typeCC/CV Linear
  • Charge TerminationLDO Mode
  • Battery TypeLi-Ion, Li-Polymer
  • Control InterfaceStandalone
  • Trickle ChargeNo
  • Charge Status Yes
  • TimerNo
  • Power PathNo
  • USB ModeNo
  • PackageTSOT23-5