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Ten small green circuit boards with USB ports and electronic components

KEHIPI

KEHIPI 10 PCS PFM Control DC-DC Boost Module 0.9V-5V to 5V 600mA Power Adapter

SKU CH-HFE0-7KP71

Pack of ten PFM-controlled boost modules that step 0.9–5 V input to a stable 5 V USB output at up to 600 mA with 96 % efficiency

  • Product typeDigital
  • Stable 5 V output from inputs as low as 0.9 V
  • Up to 96 % conversion efficiency reduces energy waste
  • Delivers 500-600 mA from two AA batteries
  • Single AA battery provides about 200 mA for low-power devices
  • USB connector powers phones, cameras and microcontrollers directly

Ten-piece boost module kit

This pack contains ten identical DC-DC step-up modules that convert any input between 0.9 V and 5 V into a steady 5 V output. Each board integrates a miniature PFM controller chip and a USB connector for direct device power. The kit suits hobbyists building portable USB chargers from single or dual AA cells.

Solder-ready USB output

The modules arrive as bare PCBs with through-hole pads, so a soldering iron and basic wiring are required before use. Polarity must be observed on the low-voltage input side; reversing the cells will prevent operation. No firmware or configuration is involved, and the onboard USB socket accepts standard cables once the board is powered.

Efficiency under continuous draw

Conversion efficiency reaches up to 96 percent, limiting heat rise during extended operation. With two AA cells the board sustains 500 to 600 mA, while a single cell delivers roughly 200 mA before voltage sag. The PFM controller maintains regulation across the full input range without external components.

How it compares

Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 70% of the 3,875 comparable items (median $23.99).

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Specifications

Product
Brand nameAITRIP
Model name0701715464773
Product typeDigital

Questions about this item

How can I verify the boost module is working correctly after wiring it up?

Apply a DC source between 0.9 V and 5 V to the input pins, then measure the USB output with a multimeter; it should read a steady 5 V DC, and the converter will deliver 500–600 mA with two AA cells or about 200 mA with a single AA cell.

What does the 10-piece pack contain and is anything else required?

The package includes ten 0.9–5 V to 5 V boost modules, each with an onboard USB connector and PFM control chip; you only need to supply a suitable DC input such as AA batteries or another 0.9–5 V source.

Which version should I choose for a project needing the highest possible efficiency?

All ten modules share the same specification, reaching up to 96 % conversion efficiency, so any unit from the pack will provide the maximum efficiency available.

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