DIY USB Charger DC 4.75~22V to 1~20V 3A Adjustable USB Power Supply Module USB Charging Board for mobile Phone/Laptop/Tablet PC/MP3

  • Item ID #200116

List Price: $9.50 Our Price: $2.50Save 74%

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It is a Adjustable USB Power Supply Module/USB Charger/Adapter, Input Voltage: DC 4.75~22V, Output Voltage:DC 1~20V(default 5V, continuously adjustable), Output Current: 0~3A, It has small size, high efficiency, long term stable and reliable quality,easy installation and use, Suitable for mobile Phone/ipad/iphone/Laptop/Tablet PC/MP3

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  • Module Property: 3A non-isolated buck synchronous rectification module
  • Input Voltage: DC 4.75~22V
  • Output Voltage: DC 1~20V(default 5V), continuously adjustable
  • Output Current: 0~3A(please enhance heat dissipation when over 2A)
  • Operating Temperature: -40°c to + 85°c
  • Operating Frequency: 340KHz
  • Conversion Efficiency: up to 96% (efficiency is related with input voltage, output voltage, current and voltage difference)
  • Over Current Protection: Yes
  • Over Temperature Protection: Yes (automatically shut off the output when over temperature)
  • Input Reverse Polarity Protection: None (if necessary, please add a diode on input)
  • Identification Resistor: for ipad/iphone/tablet PC
  • Installation: 3mm screw(2pcs)
  • Wiring: welding, IN to input, USB as output
  • Size: 20 x 20 x 10 mm(L x W x H)


  • The module can be used to convert two, three, or four series lithium battery to 5V to charge digital products for mobile phone, ipad, MP3, PSP, etc.

Package Includes:

  • 1 x DC Buck Converter (Adjustable USB Charger/Power Supply Module)


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