LTC3780 Buck-Boost DC Regulator Module 4V–36V to 12V Output
LTC3780 Buck-Boost DC Regulator Module 4V–36V to 12V Output
LTC3780 Automatic Buck-Boost DC Power Regulator Module
Upgrade your electronics projects with this compact and highly efficient LTC3780 Buck-Boost Power Supply Module. Designed for versatility, it accepts a wide DC input range of 4V to 35V and delivers a stable, regulated 12V DC output — whether your input voltage is above or below the output. Perfect for automotive systems, DIY electronics, solar power setups, battery-powered projects, and more.
Key Features
- Wide Input Range: Accepts DC 4V–35V, making it compatible with a broad array of power sources
- Stable 12V Output: Delivers a consistent DC 12V output regardless of input fluctuation
- Automatic Buck-Boost Operation: Seamlessly switches between step-up (boost) and step-down (buck) modes as needed
- High Efficiency: Built around the LTC3780 IC for reliable, low-loss power conversion
- Compact & Lightweight: Measures just 84 × 30 × 16.5 mm and weighs only 24g — easy to integrate into tight spaces
- Max Input Current: 6A for robust performance in demanding applications
Technical Specifications
| Input Voltage | DC 4V – 35V |
| Input Current (Max) | 6A |
| Output Voltage | DC 12V (fixed) |
| Dimensions | 84 × 30 × 16.5 mm |
| Weight | 24g |
| Country of Origin | Made in China |
Ideal Use Cases
- Automotive 12V power conversion from variable battery sources
- Solar panel power regulation and battery charging systems
- DIY electronics and hobbyist projects requiring stable 12V DC
- Portable power banks and mobile equipment power supply
- Robotics and microcontroller power regulation
What's in the Box?
- 1× LTC3780 Buck-Boost Power Supply Module
Please Note: Due to lighting and screen calibration differences, the item's color may appear slightly different from the pictures. Please allow 1–3 cm tolerance due to manual measurement.
For guidance on electrical safety standards and best practices when working with low-voltage DC power electronics, visit OSHA Electrical Safety and CPSC Consumer Product Safety.
Frequently Asked Questions
Q: What is the difference between a buck-boost converter and a standard buck or boost converter?
A: A standard buck (step-down) converter only reduces voltage, and a boost (step-up) converter only raises it. A buck-boost converter like this LTC3780 module automatically handles both — it steps voltage up when the input is below 12V and steps it down when the input exceeds 12V, providing a consistently stable 12V output across a wide 4V–35V input range.
Q: Can this module be used in a car or vehicle with a 12V battery?
A: Yes. Vehicle battery voltages can vary from around 9V (during cranking) to over 14V (when the alternator is charging). This module's 4V–35V input range covers all typical automotive voltage conditions and maintains a steady 12V output throughout.
Q: Is the output voltage adjustable, or is it fixed at 12V?
A: This particular module is configured for a fixed 12V DC output. It is optimized and pre-set for applications that require a stable 12V supply without manual adjustment.
Q: What is the maximum power output of this module?
A: The module supports up to 6A of input current. Actual output power will depend on input voltage and efficiency, but it is well-suited for moderate-load electronics applications up to several tens of watts.