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The USB DC-DC Buck Converter is a compact step-down power supply module designed to convert a 6V–24V DC input into a regulated 5V USB output. It provides a convenient solution for powering or charging compatible USB devices from 12V and 24V DC power sources.
Featuring a USB Type-A output port, this module is suitable for automotive electronics, DIY USB charging projects, embedded systems and other applications requiring a 5V power supply.
Wide Input Voltage: Supports DC input from 6V to 24V.
5V USB Output: Provides approximately 5.1V–5.2V output according to the matching product specifications.
Maximum Output Current: Up to 3A maximum; 2.1A is specified for extended operation.
USB Type-A Interface: Convenient connection for compatible USB devices.
Synchronous Buck Conversion: Designed for efficient step-down voltage conversion.
Protection Features: Input reverse-polarity protection, output overvoltage protection and output short-circuit protection are specified.
Compact Design: Small circuit-board module suitable for space-constrained projects.
| Parameter | Specification |
|---|---|
| Module Type | DC-DC Buck Converter |
| Input Voltage | 6–24V DC |
| Output Voltage | 5.1–5.2V DC |
| Maximum Output Current | 3A |
| Extended Operation Current | 2.1A |
| Switching Frequency | 500kHz |
| Conversion Efficiency | Up to 97.5% (under specified test conditions) |
| Static Current | 0.85mA |
| Load Regulation | ±1% |
| Voltage Regulation | ±0.5% |
| Output Interface | USB Type-A |
| Dimensions | 26.4 × 15 × 7.4mm |
Automotive USB charging projects
12V and 24V DC power systems
DIY USB power supply projects
Embedded electronics
USB-powered development boards
Compatible 5V electronic devices
Identify the positive and negative DC input connections.
Connect a regulated DC source within the 6–24V input range.
Check input polarity before powering the module.
Connect your compatible USB device to the USB output.
Verify the output voltage and current requirements before use.
Do not exceed the specified input voltage.
Observe correct input polarity.
Do not exceed the module's maximum output current.
Provide suitable ventilation when operating under higher loads.
Avoid prolonged output short circuits.
Confirm that the connected device supports the module's USB output voltage.
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Package Includes: 1 × USB DC-DC Buck Converter Module (6–24V to 5V).