Mini PFM Step-Up DC-DC USB 0.9V to 5V Boost Converter Module(Blue)

Product Description: This compact DC-DC step-up converter module is designed to boost input voltages as low as 0.9V up to a stable 5V output via USB. Using Pulse Frequency Modulation (PFM) technology, it is highly efficient at low input voltages, making it ideal for portable and battery-powered projects. With its USB-A output port, it can power small 5V devices like microcontrollers, sensors, and low-power USB gadgets from single-cell batteries or other low-voltage sources. Great for prototyping, DIY electronics, and power supply applications where space is limited. Key Features: Boosts input voltage (0.9V–5V) to a regulated 5V output USB-A output for direct connection to USB-powered devices High efficiency with low input voltage (starts from a single AA battery) Compact, lightweight design suitable for small enclosures or breadboards Built-in protection features for safe

Technical Specifications:

• Input Voltage Range: 0.9V to 5V DC
• Output Voltage: Fixed 5V DC (regulated)
• Output Interface: USB-A Female port
• Maximum Output Current: Up to 500mA (depends on input voltage and load)
• Start-up Voltage: Requires at least 0.9V with light load
• Conversion Efficiency: Up to 96% (typical under optimal conditions)
• Regulation Mode: Pulse Frequency Modulation (PFM)
• Module Dimensions: Approximately 34mm (L) × 16mm (W) × 7mm (H)
• Weight per Module: Around 3 grams

Applications:

• Powering 5V microcontrollers (Arduino, ESP8266, etc.) from 1.5V or 3.7V batteries
• Emergency USB power from AA or AAA batteries
• Portable electronics and DIY projects
• Educational kits and low-power electronics