**6-24V DC to 5V 2A USB Car Charger Converter Module**
Transform any 6V-24V DC power source into a reliable 5V USB charger with our compact 2A Buck Converter. This DC-DC module delivers stable, regulated output perfect for charging smartphones, tablets, and other USB devices. With efficiency up to 97.5% and built-in protections against reverse polarity and short circuits, this converter ensures safe, effective operation in vehicles, solar applications, and portable projects.
**Key Features:**
- **Stable 5V Output:** Ideal for various devices without adjustment.
- **High Efficiency (up to 97.5%):** Minimizes energy waste, perfect for battery use.
- **Comprehensive Protection:** Safeguards against overload and reverse polarity.
- **Compact Design:** Dimensions of 26 × 14 × 8 mm fit seamlessly into enclosures.
**Specifications:**
- Input Voltage: 6V-24V DC
- Output Current: 2A max (1A below 10V)
- Operating Temperature: -40°C to +85°C
**What You Need:**
- DC Power Source (6V–24V), USB cable, and soldering tools for installation.
**Applications:** Perfect for cars, RVs, boats, solar power setups, and powering microcontrollers like Arduino.
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Upgrade your power solutions with this essential USB charger module today!
6-24V to 5V USB 2A DC-DC Buck Step-Down Converter -- Car USB Charger Power Supply Module with Reverse Polarity & Short-Circuit Protection
This ultra-compact DC-DC buck converter module converts 6V–24V DC input to a fixed, regulated 5V USB output at up to 2A continuous current. With synchronous rectification achieving up to 97.5% efficiency and built-in protections for reverse polarity, overvoltage, and short circuit, it's the perfect way to add a reliable USB charging port to any 6V–24V DC power source -- from car batteries and solar panels to bench power supplies.
⚠️ Important: Input voltage must be between 6V and 24V DC. With input below 10V, maximum output current is limited to ~1A. Soldering is required to connect input power wires.
⚡ Key Features
- Fixed 5V USB Output -- Stable, regulated 5.0–5.2V through a standard USB-A connector, no adjustment needed
- Up to 2A Continuous Output -- Charge most smartphones, tablets, and USB-powered devices (with input voltage above 10V)
- Wide Input Range (6V–24V DC) -- Works with car/motorcycle batteries, solar panels, battery packs, and bench power supplies
- Ultra-High Efficiency (up to 97.5%) -- Synchronous rectification minimizes wasted energy and heat, ideal for battery-powered applications
- Ultra-Compact (26 × 14 × 8 mm) -- Small enough to embed inside enclosures, dashboards, or project housings
- Comprehensive Protection -- Input reverse polarity diode, 1.5A input fuse, 300W TVS output overvoltage clamp, and short-circuit protection
- Low Output Ripple (10mV) -- Clean, stable power suitable for sensitive electronics like microcontrollers and sensors
- Red LED Power Indicator -- Confirms the module is powered and producing output
- Industrial Temperature Range -- Rated for −40°C to +85°C operation
📐 Specifications
| Topology |
Non-isolated Buck (Step-Down) Synchronous Rectification |
| Input Voltage |
6V to 24V DC |
| Input Connectors |
Solder pads (+ and −) |
| Output Voltage |
Fixed 5.0–5.2V |
| Output Connector |
USB-A |
| Output Current |
2A continuous max (1A max with input below 10V) |
| Efficiency |
Up to 97.5% (at 6.5V in, 0.7A); 94% (at 12V in, 1A) |
| Switching Frequency |
500 kHz |
| Output Ripple |
10mV (at 12V input, 2A) |
| Load Regulation |
±1% |
| Voltage Regulation |
±0.5% |
| Static Current |
0.85 mA |
| Input Protection |
Reverse polarity diode |
| Output Protection |
300W TVS overvoltage clamp, short-circuit protection |
| Output Indicator |
Red LED |
| Operating Temperature |
−40°C to +85°C (industrial grade) |
| Dimensions |
Approx. 26 × 14 × 8 mm (1.0 × 0.55 × 0.31 inches) L × W × H |
📦 What's in the Box
- 1x 6-24V to 5V USB 2A DC-DC Buck Converter Module
Input power source, input wiring, USB cable, and solder are not included.
🛒 What You'll Need
- DC Power Source (6V–24V) -- Car battery, solar panel, battery pack, bench power supply, etc.
- Wire (2 conductors) -- Rated for at least 2A (e.g., 22–20 AWG for short runs)
- Soldering Iron & Solder -- Input connections are solder pads (not screw terminals)
- USB Cable -- USB-A to Micro-USB, USB-C, or Lightning for your device
🎯 Typical Applications
- Car, motorcycle, boat, or RV USB charger for phones, tablets, and dashcams
- Solar-powered USB charger for off-grid and camping use
- Powering Arduino, ESP8266, Raspberry Pi, or other USB-powered microcontrollers
- Portable battery pack projects requiring a stable 5V USB output
- Embedded USB charging port inside enclosures, dashboards, or equipment
- Marine or RV onboard USB charging from 12V or 24V battery systems
- Replacing inefficient linear regulators in 5V USB power applications
⚠️ Important Notes
- Input voltage must be between 6V and 24V DC -- do not exceed 24V or connect to AC mains power
- With input voltage below 10V, maximum output current is limited to approximately 1A
- Soldering is required -- input connections are solder pads, not screw terminals
- Output is fixed at 5.0–5.2V and is not adjustable
- Do not leave the output short-circuited for extended periods -- protection is for brief accidental shorts only
- At input voltages above 12V with 2A continuous output, add heatsinking or forced-air cooling
- Does not support USB Quick Charge, USB-PD, or other fast-charging protocols -- devices charge at standard 5V rate
- Observe correct polarity when wiring -- while reverse polarity protection is included, always wire positive to + and negative to −
💡 Tip: Visit our Envistia Mall support website for a complete User Guide with wiring diagrams, power and current limitation details, protection feature explanations, and troubleshooting tips.
🏪 About Envistia Mall
Envistia Mall is a US-based electronics retailer specializing in development boards, sensors, modules, and components for makers, engineers, and educators. We ship from the United States with fast handling times. Product documentation and technical support are available at our dedicated support site.
📦 Fast Free US Shipping | 🔄 Hassle-Free Returns | 📧 Responsive Customer Support
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