Parameters: Input
voltage: 4-40VOutput
voltage: 1.25
-37VOutput current: 2A rated current and 3A
MaxInternal vibration frequency: 150KHzAdjustable
buck converter: Turn the potentiometer counterclockwise with a mini screwdriver and to step down output voltage, clockwise to step up.
Calibration Mode (Long-press >4s): Adjust input voltage measurement ( 0.5V ) while IN LED is lit. Long-press >2s switch to output calibration (OUT LED lit). Long-press >2s again to save settings (stored permanently).
Power Off (Long-press 1-4s): Turns off the voltmeter. Short-press to power back on.
Protection: Reverse Connection ProtectionOverheating ProtectionShort Circuit ProtectionNote: 1. Please add heatsink when the output current is over 2A or output power is over 15W. 2. Please make sure the input voltage is at least 1.5V higher than output voltage to ensure stable output.
Package includes: 20 x LED display LM2596 buck converter