DC-DC 4A High Efficiency Buck Module Adjustable Fixed Output Optional can be applied in the buck field where the input voltage is higher than the output voltage, such as battery, power transformer, DIY adjustable power supply, 24V car power supply, industrial equipment step-down, DC 12V to 3.3V , 12 in turn at 9V, 12V to 5V, 24V to 5V, 24V to 9V, 24V to 12V, etc.Onboard regulated power supply, the voltage regulator can be adjusted, the output voltage can be adjusted to any 2.5-20v, or you can choose 3.3V, 5V, 9V, 12V output. it is very convenient for charging MP3, MP4PSP and other equipment.
Input voltage range: DC 5-36V (the input voltage must be 2V higher than the output voltage and cannot be increased)
Output voltage range: DC 2.5V-20V voltage continuously variable, and it has high efficiency (maximum 99% or more) (efficiency of AC input, output voltage, current, differential pressure, line loss) output current: 0 -4A, it is recommended to use at long distance, working within 3.5A. This module is designed with high frequency low resistance capacitors and high frequency Q inductors. In order to use efficiently and reduce energy loss, the module can achieve efficiency up to 99%.
Voltage adjustment: Connect voltage (DC 5V-36V) to adjust the potentiometer knob (clockwise to increase, counterclockwise to decrease), and use a multimeter to determine the output voltage.
- Module Nature: Non-isolated step-down module(buck)
- Input voltage: 5-36V(input and output diffrential pressure minimum 2v.
- Output voltage: 2.5-20v (3.3v/5v/9v/12v/ adjustable) five output selectable (issued by default is adjustable ADJ Output)
- Output current: 0.4A,Long run is recommended for use within 3.5A
- Output power: it is reccomended to use within 30w, more then 15w add heat sink.
- Operating temperature: -40degree to +85 degrees.
- Operating frequency: 110Khz
- Conversion efficiency: upto 99% (efficiency is related to input , output voltage,current,differential pressure)
- Load Adjustment rate: S(I)<0.8%
- Voltage Adjustment rate: S(U)<0.8%
- Power Indicator: yes (yellow green)
- Short circuit protection: yes (limited current 4.5A)
- Over temperature protection: yes (automatic shut down output after over temperature)
- Input reverse connection protection: none, (if required , enter a large current diode)
- Wire: 3mm tin wire
- Connection mode: Pin connection, IN is Input , OUT is Output.
- Module size: 40mm*20mm*14mm