DC Buck Step down Adjustable Voltage Regulator Module 5v~24v to 1.8v 3.3v 12v 3A
Mini Adjustable Step-Down Module Buck Converter 97.5% DC-DC 12-24V To 5V 3A
Input Voltage:DC 4.5-24V
Output Voltage:integration adjustable and fixed output,back side can choose fiexd output voltage
Adjustable Range:0.8-17V,fixed voltage 1.8V 2.5V 3.3V 5V 9V 12V
Output Current:3A max, 2.1A sustainable
Transform Efficiency:97.5%(max) 6.5 to 5V 0.7A
Switch Frequency:500KHz
Output Ripple Wave:20mV (12V to 5V 3A) 20m band width
Operating Voltage:-40-85cdentigrade
Output Overvoltage Protection:no
Static Current:0.85MA
Load Adjust Rate:±1%
Voltage Adjust Rate:±0.5%
Dynamic Response Speed:5% 200uS
Output Short Circuit Protection:yes
Soldering Hole Space:2.54mm
Connections:
GND: Ground, common to input and output
IN+: Input voltage positive
VO+: Output voltage positive
EN: Ignore, not connected
The easiest way to use these is to make the input voltage connections and supply power, then adjust the trim pot and measure the output voltage with a multimeter to set the required level. Double, or preferably triple check the output voltage. Then connect the load and check the voltage again.
To use the set voltages, the trace to the trim pot needs to be cut, and then solder across the jumper for the required output voltage. Then check as above.