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Small green circuit board with components and a digital display, 67 by 43 by 12 mm

sakose

sakose LTC1871 DC-DC Boost Converter 3.5-35V 75W Power Strip

SKU CH-YQ67-GFV5P

A DC-DC boost step-up module based on the LTC1871 converts 3.5 V to 35 V input into an adjustable 3.5 V to 35 V output at up to 75 W with 96.4 % efficiency and a built-in voltmeter

  • TypeAccessories
  • Adjustable 3.5–35 V output powers diverse DIY projects
  • Up to 96.4 % conversion efficiency reduces energy waste
  • Built-in voltmeter with ±0.1 V accuracy simplifies monitoring
  • 75 W continuous output handles demanding loads reliably
  • Compact 67 × 43 × 12 mm module fits tight enclosures

DC-DC Boost Converter with Integrated VoltMeter

The sakose LTC1871 module steps input voltages from 3.5 to 35 V up to a regulated 3.5 to 35 V DC output. It delivers up to 75 W continuous power and peaks at 128 W when both input and output exceed 20 V. Conversion efficiency reaches 96.4 percent, and a built-in voltmeter reads 4 to 40 V with ±0.1 V accuracy.

Makers needing adjustable step-up regulation

Suits hobbyists building variable bench supplies, boosting 3.7 V lithium cells to 5 V, or raising 7.4 V and 12 V sources to 19 V for laptop charging. The 6 A output current limit and 14 A short-circuit protection cover moderate loads. Not for designs requiring input reverse-polarity protection or sustained currents above 6 A without additional external circuitry.

75 W rated output power

This single figure defines whether the module can drive the intended load. At 75 W it handles typical DIY power-supply projects and laptop-rate charging; loads demanding more continuous power will need a higher-rated converter.

Highlights

  • Adjustable 3.5–35 V output powers diverse DIY projects
  • Up to 96.4 % conversion efficiency reduces energy waste
  • Built-in voltmeter with ±0.1 V accuracy simplifies monitoring
  • 75 W continuous output handles demanding loads reliably
  • Compact 67 × 43 × 12 mm module fits tight enclosures

Specifications

BrandSAKOSE
TypeAccessories

Questions about this item

What power source do I need to supply the sakose LTC1871 boost converter?

You need a DC source between 3 and 35 V that can deliver up to 9 A; the module has no reverse-polarity protection, so observe correct polarity.

Will the sakose LTC1871 module work with a 12 V lead-acid battery I already use?

Yes — 12 V is within the 3–35 V input range and the converter can boost it up to 35 V at up to 6 A output.

How can I confirm the sakose LTC1871 is regulating voltage correctly after wiring it?

The on-board voltmeter shows 4–40 V with ±0.1 V accuracy; compare its reading to your target output (for example 19 V for a laptop supply).

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