The LTC3780 Adjustable Step Up/Down Voltage Regulator Module is a versatile buck-boost converter that maintains a stable output voltage regardless of input fluctuations. Supporting a wide input range of 5–32V and an adjustable output of 1–30V, it delivers up to 10A current and 130W peak power, making it suitable for demanding applications. Designed with built-in protections such as under-voltage, over-current, short circuit, and fault indication, this module ensures reliable and safe operation. Featuring a high-quality IC, efficient heat dissipation with an oxidized heatsink, and robust double-sided PCB design, it is an excellent choice for powering batteries, high-power LED drivers, automotive electronics, and industrial control systems. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Automatic buck-boost regulator: step-up or step-down as needed.
Wide input range: DC 5–32V (recommended above 10V).
Adjustable output: DC 1–30V, constant voltage/current supported.
Output current: up to 10A (7A continuous), peak power 130W.
Built-in under-voltage, over-current, and short-circuit protection.
Output ripple as low as 50mV under load (12V/5A).
Fault indicator light for error status.
High-quality IC with efficient cooling via oxidized heatsink.
Compact design, suitable for integration into DIY and industrial systems.
Ideal for battery charging, LED drivers, and automotive power supply.
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Applications:
Battery charging systems with adjustable current control.
High-power LED drivers with stable constant current output.
Automotive 12V/24V power regulation for accessories.
Robotics and automation requiring stable DC power.
Industrial control systems with wide input supply variations.
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| General Specifications |
| Product Type | Step-Up/Down Voltage Regulator Module |
| Model | LTC3780 |
| Input Voltage | 5–32V DC (recommended >10V) |
| Output Voltage | 1–30V DC adjustable |
| Output Current | 10A max, 7A continuous |
| Output Power | 80W continuous, 130W peak |
| Output Ripple | ~50mV (12V to 12V, 5A load) |
| Efficiency | High (IC-based design with low resistance) |
| Protections | Under-voltage, over-current, short circuit |
| Cooling | Oxidized heatsink for heat dissipation |
| Dimensions | 77.6 × 46.5 × 15 mm |
| Weight | ~45g |
| Shipment Weight | 0.0403 kg |
| Shipment Dimensions | 8 × 5 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
Adjustment Method:
- Battery under Voltage Protection Adjustment Method:
- (Take 12V Lead-Acid Battery, for example, set 10V under-voltage protection, Set of the item).
- Adjust the input power from 10V to 10V, adjust the under-voltage protection potentiometer (counterclockwise to reduce, counterclockwise to decrease) until the failure indicator (red) light up. Then when the battery is discharged to 10V, then it will automatically cut the power supply to prevent damage to the battery.
Note: If you do not have battery operated, you can skip this setting.
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Output voltage adjustment methods:
- Input is connected to a power source (voltage is higher than under-voltage protection value), red light is turned off while blue light is turned on.
- The output is connected to the multimeter, the output voltage adjusts the potentiometer (Clockwise to reduce the counterclockwise until necessary).
Note: Usually the red light is turned off, the blue light is turned on, otherwise the fault, input under-voltage protection, output over-current protection, output short circuit protection, please troubleshoot and power again.
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Output Current Adjustment Methods:
- (Charging 12V Lead-Acid Battery to charge 12V input, for example, charging is current 5A)
- Input is connected to 12V power supply, change the multimeter to the current position, the output is connected to the multimeter in parallel (output positive from the red pen, negative to the black pen, short circuit output directly.
- It has been suggested to use more than 15A current conditions, in case of burning fuse), adjust the constant current potentiometer (reducing clockwise to reduce, counterclockwise to decrease), as long as it requires current 5A Displays, then delete multimeter
- Connect to the battery to charge normally. If you use the ammeter to adjust the output current, connect and debug the current meter related circuit correctly.
Note: If continuous voltage is used for the equipment, then only need to set maximum output current.
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Package Includes:
1 x LTC3780 Adjustable Step Up Down Voltage Regulator Module
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