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Five small green circuit boards with components and pins

Ruth's sister

Ruth's sister Mini DC-DC Boost Step Up Converter 5PCS

SKU CH-9G8N-ZYAHQ

Five-step-up modules convert 2.5 V–9 V inputs to selectable 5 V, 8 V or 12 V outputs with up to 1 A at 5 V

  • Five boards per pack simplify multi-project builds
  • Adjustable 5 V, 8 V or 12 V output fits varied voltage needs
  • Wide 2.5 V minimum input works with low-voltage sources
  • Delivers up to 1 A at 5 V from a 3.7 V cell
  • LED draws only 1 mA and can be disabled to save power

Mini DC-DC Boost Converter Pack

This pack contains five identical step-up modules that raise a low DC input to a selectable 5 V, 8 V or 12 V output. They suit hobbyists and engineers who need a compact, adjustable regulator for battery-powered prototypes or sensor nodes. Each board arrives new and ready to solder into a custom circuit. The default output ships at 12 V.

Thermals Noise and Power Draw

Quiescent draw is about 1 mA with the LED disabled and rises to roughly 1 mA extra when the indicator runs at the default 12 V setting. Under load the boards deliver 5 V at 1 A, 8 V at 0.7 A, 9 V at 0.7 A or 12 V at 0.5 A from a 5 V source, and 5 V at 1 A, 8 V at 0.5 A, 9 V at .45 A or 12 V at .3 A from a 3.7 V lithium cell. Input must stay below the chosen output voltage and above 2.5 V.

Build Integration

The modules accept any DC source between 2.5 V and the set output level, so they pair with single lithium cells, twin alkaline cells or a regulated 5 V rail. Output pins provide the selected fixed voltage for microcontrollers, wireless modules or small actuators. No heatsink, fan or large enclosure is included; the bare PCB fits tight spaces but offers no reverse-polarity or short-circuit protection. Builders needing isolation, higher current or a wider input range should look elsewhere.

Highlights

  • Five boards per pack simplify multi-project builds
  • Adjustable 5 V, 8 V or 12 V output fits varied voltage needs
  • Wide 2.5 V minimum input works with low-voltage sources
  • Delivers up to 1 A at 5 V from a 3.7 V cell
  • LED draws only 1 mA and can be disabled to save power

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the LYR0057 boost converter and what step is often missed?

Connect the input voltage between 2.5V and the chosen output level, then bridge the onboard pads to select 5V, 8V or 12V; the step often missed is verifying the input stays below the set output voltage.

What maintenance or replacement will the LYR0057 module need over time?

No scheduled maintenance is required; if the LED indicator is left on it draws about 1mA at 12V output, so disabling the LED reduces quiescent current to 1mA and prolongs battery life.

What is the first limit reached when the LYR0057 runs continuously at 12V from a 3.7V lithium cell?

The output current caps at 0.3A when boosting 3.7V to 12V, so sustained loads above 0.3A will hit the current limit before any thermal constraint appears.

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