DC 6-24V to 5V USB Step Down Power Module Mini Buck
DC 6-24V to 5V USB Step Down Power Module Mini Buck
DC 6-24V to 5V USB Step Down Power Module Mini
Keep your devices powered anywhere with this compact DC Step Down Power Module. Designed to convert a wide input range of 6–24V (including 12V and 24V systems) down to a stable 5V USB output, this mini buck converter module is an essential component for DIY electronics projects, automotive setups, solar systems, and custom power supply builds.
With an impressive conversion efficiency of up to 97.5%, a switching frequency of 500KHz, and industrial-grade operating temperature tolerance (-40°C to +85°C), this module delivers reliable, consistent performance in demanding environments. Its ultra-low output ripple (~10mV) and fast dynamic response make it ideal for powering sensitive electronics via USB.
Key Features
- Input Voltage: DC 6V–24V (compatible with 12V and 24V systems)
- Output Voltage: Stable 5V USB output
- Conversion Efficiency: Up to 97.5% (6.5V to 5V @ 0.7A)
- Switching Frequency: 500KHz for smooth, stable output
- Output Ripple: ~10mV (12V to 5V @ 3A), 20MHz bandwidth
- Quiescent Current: 0.85mA — minimal standby draw
- Load Regulation: ±1% | Voltage Regulation: ±0.5%
- Dynamic Response: 5% within 200µs
- Full Load Temperature Rise: 30°C
- Working Temperature: Industrial grade -40°C to +85°C
- Output Overvoltage Protection: Yes — 300W TVS tube clamp on 5V output
- Input Protection: 1.5A fuse + reverse connection protection diode
- Short-Circuit Protection: Yes (avoid prolonged short-circuit conditions)
- Output Indicator: Red LED voltage indicator light
- Connection Method: Solder pads for input; short-head crimping USB for output
- Compact Mini Form Factor — easy to integrate into enclosures and custom builds
Ideal Applications
- Automotive and marine USB charging from 12V/24V systems
- Solar panel power management projects
- DIY electronics and prototyping
- Custom power supply modules for embedded systems
- Powering microcontrollers, sensors, and IoT devices via USB
Technical Specifications at a Glance
| Parameter | Value |
|---|---|
| Input Voltage | DC 6V – 24V |
| Output Voltage | 5V USB |
| Max Efficiency | 97.5% |
| Switching Frequency | 500KHz |
| Output Ripple | ~10mV @ 12V→5V 3A |
| Quiescent Current | 0.85mA |
| Operating Temp | -40°C to +85°C |
| Input Protection | 1.5A Fuse + Reverse Polarity Diode |
| Output Protection | 300W TVS + Short-Circuit Protection |
For general guidance on safe electrical component handling and best practices, visit OSHA's Electrical Safety Guidelines.
Frequently Asked Questions
Q: What input voltages are compatible with this DC step down USB power module?
A: This mini buck converter module accepts a wide input range of DC 6V to 24V, making it fully compatible with common 12V and 24V power sources such as car batteries, lead-acid batteries, and solar panels. It reliably converts the input down to a steady 5V USB output regardless of the input voltage within that range.
Q: How efficient is this step down power module and what protection features does it include?
A: The module achieves up to 97.5% conversion efficiency at 6.5V to 5V @ 0.7A. It features multiple layers of protection: a 1.5A input fuse, a reverse polarity protection diode, a 300W TVS tube for output overvoltage clamping, and short-circuit protection — making it safe and reliable for continuous use in real-world electronics projects.
Q: How do I connect this module to my circuit?
A: Input connections are made via solder pads — simply solder your positive and negative wires from your 6–24V DC source to the corresponding pads. The output is provided through a short-head crimping USB port, allowing you to plug in any standard USB device or cable for 5V power delivery. Always observe correct polarity before powering the module.
Q: Is this module suitable for industrial or outdoor use?
A: Yes. This step down power module is rated to industrial grade operating temperatures from -40°C to +85°C, making it suitable for use in automotive, outdoor, and industrial environments where temperature extremes may be encountered. Note that output power capacity decreases at higher ambient temperatures.