SparkFun 3.3V Step-Up Breakout - NCP1402

The SparkFun 3.3 V Step-Up Breakout is a DC-DC boost converter based on the NCP1402. It accepts input voltages between 1 V and 3 V (such as one or two AA batteries) and outputs a constant, low-ripple 3.3 V capable of sourcing up to 200 mA. All necessary peripheral components are included on-board.

Input, output, and ground pins are broken out on a 2.54 mm (0.1″) grid for direct breadboard use.

Key Features

• NCP1402 Boost Converter – Steps up low voltages to a stable 3.3 V output
• Wide Input Range – Accepts 1–3 V DC (1× or 2× AA batteries)
• 200 mA Output – Sufficient for 3.3 V sensors and microcontrollers
• Low Ripple – Clean output for sensitive circuits
• Breadboard Friendly – 2.54 mm pitch breakout pins

Specifications

• IC – NCP1402
• Input Voltage – 1–3 V DC
• Output Voltage – 3.3 V DC
• Max Output Current – 200 mA
• Pin Pitch – 2.54 mm (0.1″)

Ideal For

• Powering 3.3 V sensors from AA batteries
• Battery-powered microcontroller projects
• Low-voltage boost applications

Package Contents

• 1× SparkFun 3.3 V Step-Up Breakout – NCP1402

Resources

• NCP1402 Datasheet (PDF)
• Schematic (PDF)
• Design Files (GitHub)