The 3V–5V USB Mini DC-DC Boost Converter is a compact, high-efficiency voltage step-up module designed to convert low input voltages into a stable 5V USB output. This module is ideal for powering small electronics, microcontroller boards, DIY projects, battery-powered systems, and portable devices. Its efficient boost circuitry allows you to generate regulated 5V power from sources as low as 0.9V, making it perfect for emergency power applications and low-voltage battery packs.

This mini boost converter is widely used in electronics prototyping, hobby projects, embedded systems, and portable USB-powered gadgets. Whether you are building a custom power bank with single-cell batteries, powering sensors or microcontrollers in the field, or supplying 5V to USB devices, this module ensures stable output with up to 94% conversion efficiency. The small footprint makes it easy to integrate onto breadboards, development boards, IoT nodes, and DIY electronics setups.

Features:

• Compact DC-DC step-up module delivering a regulated 5V USB output

• Operates from extremely low input voltages starting at just 0.9V

• Supports input range up to 5V for flexible battery and power source options

• Output current up to 800mA–1000mA depending on input voltage

• High-efficiency boost converter with up to 94% conversion efficiency

• Integrated USB port for directly powering USB-compatible devices

• Ideal for powering microcontrollers, development boards, sensors, and portable circuits

• Suitable for AA/AAA battery packs, lithium batteries, solar panels, and low-voltage supplies

• Stable voltage output for sensitive electronics and embedded systems

• Lightweight, durable, and easy to integrate into custom circuits and prototypes

Specifications:

• Input Voltage: 0.9V – 5V

• Output Voltage: 5V

• Output Current: up to 800mA – 1000mA (depending on input voltage)

• Efficiency: up to 94%

• Port Type: Standard USB output

• Module Type: DC-DC Boost Converter

• Application: Low-voltage to 5V power conversion

How to Use:

• Connect the input terminals to a low-voltage power source such as AA/AAA batteries, lithium cells, or solar panels

• Ensure input polarity is correct to avoid module damage

• Plug USB-powered devices directly into the onboard USB port

• Use for powering development boards, LED strips, portable circuits, and low-power electronics

• For best performance, use quality batteries or stable power sources for higher output current

• Do not exceed the maximum current rating to prevent overheating

• Mount the module onto breadboards or custom PCBs for project integration

• Use heat dissipation methods if running near maximum load for extended periods

Package Included:

• 1 × DC-DC Boost Converter

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