
LTC1871 boost DC-DC converter module — 100W, adjustable step-up, LED digital voltmeter
The LTC1871-based 100W boost DC-DC converter module is a high-power step-up power supply designed for applications requiring a stable, adjustable output voltage higher than the input. Built around the LTC1871 current-mode PWM controller from Analog Devices (formerly Linear Technology), it delivers efficient, regulated power conversion with a built-in LED digital voltmeter for real-time output voltage monitoring.
With its wide input voltage range, adjustable output, and robust 100W power handling, this module is well-suited for battery-powered systems, LED driver supplies, solar charge boosters, and lab bench power applications where a compact, high-power step-up converter is needed.
Key Specifications:
- Controller IC: LTC1871 (current-mode PWM boost controller)
- Topology: Boost (step-up) DC-DC converter
- Maximum output power: 100W
- Input voltage range: adjustable (refer to module labelling)
- Output voltage: adjustable via onboard potentiometer
- Display: LED digital voltmeter (real-time output voltage readout)
- Conversion efficiency: high (LTC1871 current-mode control)
- Protection: over-voltage, over-current (refer to module spec)
Key Features:
- LTC1871 PWM controller — precision current-mode control for stable, efficient step-up conversion
- 100W power handling — suitable for high-current LED arrays, motor pre-drivers, and power tools
- Adjustable output voltage — set via onboard potentiometer to match your load requirements
- Built-in LED digital voltmeter — monitor output voltage in real time without external test equipment
- Compact module design — easy to integrate into enclosures and project builds
Applications:
- High-power LED driver supply (100W LED arrays)
- Battery-powered boost supply for portable electronics
- Solar panel output boosting
- Lab bench adjustable step-up power supply
- Motor and actuator pre-driver supply
- DIY power electronics projects
Note: Ensure input wiring and heatsinking are adequate for 100W operation. Use appropriate gauge wire for high-current connections. Refer to the LTC1871 datasheet for controller specifications and the module schematic for component ratings.



