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Small green circuit board with components and solder pads

Adafruit

Adafruit MiniBoost 5V 100mA Charge Pump AP3602A engineering development tool

SKU CH-HS33-RPDTY

A compact charge-pump booster delivering 5 V at 100 mA from 3 V input for battery-powered projects

  • TypePrototyping Products
  • Delivers 5 V from low-voltage batteries
  • charge-pump topology doubles input then regulates down
  • 100 mA output suits low-current projects
  • 0 mm by 10.0 mm footprint fits tight spaces
  • Weighs 0.6 g for minimal payload impact

Compact 5V charge pump for low-power prototypes

The Adafruit MiniBoost AP3602A is a tiny boost board that fits the footprint of a linear regulator. It targets hobbyists and engineers who need a small 5V rail from low-voltage batteries in space-constrained projects.

100mA maximum output current

The charge-pump topology doubles the input voltage and regulates down to 5V, but can only supply up to 100mA. Designs that require more current must choose an inductor-based converter instead.

Breadboard-friendly module for 2-3 alkaline

The board measures 15.0mm x 10.0mm x 3.0mm and weighs 0.6g, with 0.1in pin spacing for direct prototyping. It accepts inputs around 3V from two or three alkaline cells or one lithium cell, freeing the builder from bulky regulator packages.

Highlights

  • Delivers 5 V from low-voltage batteries
  • charge-pump topology doubles input then regulates down
  • 100 mA output suits low-current projects
  • 0 mm by 10.0 mm footprint fits tight spaces
  • Weighs 0.6 g for minimal payload impact

Specifications

TypePrototyping Products

Questions about this item

What does the 100mA output mean for my battery-powered project?

The board delivers up to 100mA at 5V from inputs such as 2 or 3 Alkaline cells or a single Lithium cell, making it suitable for low-current microcontroller or sensor circuits.

How does the charge-pump topology affect the input voltage range?

The AP3602A doubles the incoming voltage then regulates down to 5V, so it works with inputs around 3V but is less efficient than inductor-based boost converters.

Will the 15.0mm x 10.0mm board fit on a standard breadboard or protoboard?

At 15.0mm by 10.0mm and 3.0mm thick, the module occupies roughly the same footprint as a typical linear regulator and can be soldered to 0.1-inch header pins for breadboard use.

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