User’s Guide: USB Adjustable DC-DC Power Supply Module (XY-UP, 1.2V–24V Output)
User’s Guide: USB Adjustable DC-DC Power Supply Module (XY-UP, 1.2V–24V Output)
Overview
The XY-UP module is a compact buck-boost converter that transforms a USB 5V input into a user-adjustable output voltage ranging from 1.2V to 24V. It’s perfect for prototyping, powering sensors, microcontrollers, and testing circuits.
| Feature | Specification |
|---|---|
| Input Voltage | 5V via USB (standard or micro USB) |
| Output Voltage | Adjustable 1.2V to 24V DC |
| Max Output Power | Input 1.2-2V: within 2W, Input 2-20V: within 3W, Input 20-24V: within 2.5W |
| Display | Digital voltmeter (shows output voltage) |
| Adjustment Method | Rotary potentiometer |
| Conversion Type | Buck-boost (step-up & step-down) |
| Size | ~80 x 20 x 14 mm |
** Supports low power and sleep mode.
Wiring Instructions
Input Side
- USB-A or Micro USB port: Connect to a 5V USB power source (e.g., power bank, laptop, USB wall adapter).
- Pad inputs: Some versions include solder pads for direct 5V input from other sources.
Output Side
- VOUT+ and VOUT− pads: Connect to your load (e.g., microcontroller, sensor, LED strip).
- Voltage Display: Shows the current output voltage.
How to Use
- Connect USB power to the input port.
- Turn the potentiometer clockwise to increase voltage, counterclockwise to decrease.
- Monitor the display to set your desired output voltage.
- Connect your device to the output pads once voltage is set.
Example Applications
- Powering ESP32 or Arduino boards at 3.3V or 5V
- Driving 12V fans or LED strips from USB
- Simulating battery voltages for testing
- Bench power supply for prototyping
Usage Tips
- Always set voltage before connecting your device to avoid overvoltage damage.
- Check current draw: Drawing >2A may cause voltage drop or overheating.
- Use heat sinks or airflow if operating at high current or voltage.
- Avoid reverse polarity on output pads.
Troubleshooting
| Symptom | Solution |
|---|---|
| No output voltage | Check USB source and potentiometer setting |
| Display flickers | USB source may be unstable or overloaded |
| Output voltage unstable | Load may exceed module’s capacity |
| Module heats up | Reduce current or improve cooling |