WDPS2303 3A Adjustable DC-DC Step Down Power Supply Module DC Buck Converter + Shell Unassembled

WDPS2303 3A Adjustable DC-DC Step Down Power Supply Module DC Buck Converter + Shell Unassembled

Attention:
Please read introductions carefully before use. The module has passed tests before delivery. After receiving the goods, please browse its wiring method first, and then power on to test before soldering.

Calibration Instructions:
The module has a calibration function, so don't worry about inaccurate measurement display. If you find that the display is inaccurate, the voltage cannot be adjusted by left and right buttons, and no-load current is not zero, you can use the following method to calibrate. After receiving the product, it is recommended to perform a calibration according to the following method.

Calibration Method:
When the power is off, press and hold the left button, connect to power supply. Release the left button and the display starts to flash. Use a multimeter to measure the voltage of output terminal. Press the left and right keys to adjust, make the voltage of the multimeter consistent with the displayed voltage! For example, if the multimeter is 5.88V, adjust the module and it will display 5.88V. It is automatically saved two seconds after adjustment. Turn off the power supply and reconnect the power supply to complete the calibration. The error can be calibrated within plus or minus 0.01V. If the error is greater, you can try to calibrate it again.


Product Parameters:
- Input voltage: 5-23V, please keep a margin, it is recommended to use within 20V.
- Output voltage: 0.01V-18V continuously adjustable. Automatically save the last set voltage (The input voltage must be 1V higher than the output voltage).
- Output current: maximum 3A, it is recommended to use within 2A. When the heat generated is too much, please solve the heat dissipation problem by yourself. Note: The current is adaptive according to the load, not adjustable.
- Maximum power: 18W
- Input anti-reverse connection: Yes
- Backflow prevention: Yes
- Short-circuit protection: none (Please not short-circuit)
- Accuracy: 0.01V±1-digit, 0.001A±2-digit, three-digit voltage display, four-digit current display, and the current unit is A.
- Conversion efficiency: up to 95% (Efficiency is related to input, output voltage, current, and pressure difference).
- Size: 62mm*44mm*18mm
- Weight: 45g

Package Included:
- 1 x Set of Step Down Power Supply Module

Note:
- It is needed to assemble the shell by yourself.
- Cables pictured are not included, for demonstration purposes only.

Install Shell: