Li-Ion Battery Charger Protection IC with 5V LDO Mode



The MP2678 is a high performance single cell Li-Ion/Li-Polymer battery charger protection IC. By integrating the high voltage input protection, the MP2678 can tolerate an input surge up to +30V.?The device operates like a linear regulator, maintaining a 5V output with the input voltage up to the over voltage protection threshold.?MP2678 features input over voltage protection (OVP), battery over voltage protection (BOVP) and over charge current protection (OCP). When any fault condition happens, the IC will immediately turn off the internal N-MOSFET to disconnect the charging circuit from the input. The device also provides fault indications to the system when any of the protection events happens.?For guaranteed safe operation, the MP2678 monitors its own internal temperature and turns off the internal N-MOSFET bridging IN and OUT when the die temperature exceeds 140oC.? The MP2678 is available in an 8-pin 2x2mm QFN package.


  • Input Surge up to 30V
  • Input Over Voltage Protection
  • Proprietary Battery Over-Voltage Protection
  • Output Short-Circuit Protection
  • Soft-Stop to Prevent Voltage Spikes
  • Support up to 1.7A Load Current
  • Thermal Monitoring and Protection
  • Enable Function
  • Fault Indication
  • 2?mm QFN Package


  • EN ControlYes
  • Charging MOSFET IntegratedNo
  • Fault IndicationYes
  • Number of Series Cells1
  • GradeCatalog
  • PackageQFN-8 (2x2)
  • Vbatt_ovp (V)4.35
  • Operating Vin (min) (V)2.8
  • Absolute Vin (max) (V)30
  • Operating Vin (max) (V)9.9
  • Iin_lmt (A)1.7