DC-DC USB Adjustable Buck-Boost Power Supply Module 5V to 1-24V 3W Voltage Display Power Supply

DC-DC USB Adjustable Buck-Boost Power Supply Module Product Overview

This product is a USB 5V input, 1-24V adjustable output DC-DC buck-boost power module with a maximum output power of 3W. Simply connect a phone charger, USB 5V adapter, or power bank to easily obtain any adjustable voltage from 1V to 24V for various electronic devices. The module features a multi-turn precision long-handle potentiometer for manual voltage adjustment without the need for a screwdriver. Equipped with a high-brightness digital tube voltage display (red/green optional) showing real-time output voltage. With compact dimensions of only 70×26×22mm (including knob), it is an ideal portable power tool for engineers, technicians, field维修, and electronics enthusiasts.

DC-DC USB Adjustable Buck-Boost Power Supply Module Key Features

USB 5V Input: Supports standard USB male input, with optional microUSB adapter board input, compatible with phone chargers, power banks, computer USB ports, and other common 5V power sources.

1-24V Wide Adjustable Output: Continuously adjustable output voltage from 1V to 24V, covering commonly used voltages such as 3.3V, 5V, 9V, 12V, and 24V.

3W Output Power: Maximum output power of 3W, suitable for small-power devices, sensor testing, circuit debugging, and more.

Multi-Turn Precision Long-Handle Potentiometer: Features a multi-turn precision potentiometer with a long-handle knob for fine manual voltage adjustment without tools – clockwise to increase.

Real-Time Voltage Display: Built-in high-brightness digital tube voltmeter displaying real-time output voltage, available in red or green.

Protective Enclosure: Comes with an attractive enclosure that protects the internal circuitry.

Compact and Portable: Dimensions of only 70×26×22mm (including knob), lightweight and easy to carry.

DC-DC USB Adjustable Buck-Boost Power Supply Module Applications

This product is widely used in R&D and debugging: providing adjustable power for circuit prototypes in labs or field environments; after-sales maintenance: powering instruments temporarily during on-site service calls; outdoor operations: powering devices in environments without AC power using a power bank; electronics DIY: for makers and hobbyists to freely adjust voltage in projects; sensor and module testing: providing different voltages for sensors, small fans, LEDs, etc.; educational experiments: voltage adjustment demonstration tool in STEM teaching.

DC-DC USB Adjustable Buck-Boost Power Supply Module Key Advantages

Plug and Play, No External Power Needed: With just a phone charger or power bank, plug in USB to get 1-24V adjustable voltage – eliminating bulky traditional power supplies. Manual Knob Adjustment, Precise and Convenient: Multi-turn precision long-handle potentiometer for tool-free fine adjustment. Real-Time Voltage Display at a Glance: Built-in digital tube voltmeter (red/green optional) for实时 monitoring. Protective Enclosure for Safety and Aesthetics: Compared to bare boards, the enclosed design is safer and more attractive – ideal for desktop use and portability. Compact and Portable for Anytime Use: 70×26×22mm ultra-compact size fits easily in a tool bag or pocket. Flexible Dual Input Options: Standard USB male connector or optional microUSB adapter. Ideal Power for Daily Needs: 3W is sufficient for sensors, small fans, LEDs, microcontrollers, and other low-power devices.

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FAQ

1. What is this DC-DC USB Adjustable Power Supply Module?

It is a compact DC voltage converter module that converts a 5V USB input into an adjustable DC output voltage ranging from 1V to 24V. It is also known as a "desk power" module for R&D and debugging.

2. What are its key specifications?

Input Voltage: DC 5V (via USB-A or MicroUSB adapter).

Output Voltage: Continuously adjustable from 1V to 24V.

Maximum Output Power: 3W. For example, at 12V output, the maximum current is approximately 250mA.

Output Display: Features a 3-digit LED display showing the real-time output voltage.

Display Color: Typically available in red and green.

Dimensions: Approximately 70mm × 26mm × 14mm (excluding the potentiometer knob).

3. What package and interface does it use?

It features an integrated design with a transparent case. The input is a male USB-A connector that plugs directly into a USB power source, and the output is a small 2-way screw terminal block.

4. What applications is this module suitable for?

It is ideal for powering or testing low-power devices that require a DC voltage from 1V to 24V, such as:

Electronics R&D and debugging: Providing an adjustable power source for circuit prototypes.

Field service and repairs: Temporarily powering instruments, small fans, sensors, etc..

DIY projects: Providing different operating voltages for microcontroller projects like Arduino or small motors.

5. How do I adjust the output voltage?

Simply rotate the multi-turn precision potentiometer on the module. It features a long knob for easy manual adjustment without tools.

6. Does it have an output voltage display?

Yes. The module has a 3-digit LED display that shows the current output voltage in real-time for easy reading and setting.

7. Is this module powerful enough for my needs?

This is a low-power device with a maximum output of only 3W. It cannot power high-consumption devices like laptops or routers. Please check your device's power consumption is under 3W before purchasing.

8. Does it support both step-down and step-up modes?

Yes. Since the input is fixed at 5V, it operates in step-down mode when outputting 1V to 5V, and in step-up (boost) mode when outputting 5V to 24V.

9. What are the alternative models?

Any functionally similar low-power USB adjustable power module can be an alternative, for example:

Zk-DP: The common model name for this module.

Other similar DC-DC USB buck-boost modules from different brands or sellers.

10. What are the precautions when using it?

Power Limitation: Do not overload; total power must not exceed 3W.

Load Type: Avoid connecting components like LDOs that can introduce interference, as this may increase output ripple or damage the IC.

Input Power: Ensure you use a 5V USB power adapter or power bank.