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Li-ion Charge and Protection circuit 2100mA with DC-DC converter

Li-ion Charge and Protection circuit 2100mA with DC-DC converter

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Model: MH-CD42
SKU: 002157
Availability: In Stock
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€4.00 Ex Tax: €3.31
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This module has a built-in li-ion charge, 5V boost and protection circuit against over and under voltage, over temperature (chip) and short-circuit protection.


  • Input voltage (Vin): DC 4.5V - 5.5V (5V recommended)
  • Input current: max 2100mA
  • Battery charging voltage: 4.2V ± 1%
  • Output voltage: 5.0V 
  • Efficiency (max): 96%
  • Output current (max): 2100mA
  • Standby current (charging): ~ 100μA
  • Standby current (discharging): ~ 50μA
  • Input: solder pads (VIN and GND)
  • Output: solder pads (OUT-5V and GND)
  • Li-ion connection: Solder pads (BAT and GND)
  • Automatically switches off if the load is lower than ~50mA and switches on automatically if the load is higher than ~50mA
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