How to Use Module Mini PFM Boost Converter 5V: Examples, Pinouts, and Specs

The Module Mini PFM Boost Converter 5V is a compact and efficient power module designed to step up a lower input voltage to a stable 5V output. Utilizing Pulse Frequency Modulation (PFM) technology, this module ensures high efficiency in energy conversion, making it ideal for battery-powered applications. Its small size and lightweight design make it suitable for portable devices, DIY electronics projects, and low-power IoT systems.

• Powering 5V devices from lower voltage sources (e.g., 1.5V or 3.7V batteries)
• DIY electronics and prototyping
• Portable power supplies for microcontrollers and sensors
• IoT devices and wearable technology
• Emergency power solutions for USB-powered devices

Below are the key technical details of the Module Mini PFM Boost Converter 5V:

The module has three main pins for connection:

1. Connect the Input Voltage:

   • Attach the VIN pin to the positive terminal of your power source (e.g., a battery).
   • Connect the GND pin to the negative terminal of the power source.

2. Connect the Output Load:

   • Connect the VOUT pin to the positive terminal of the device or circuit you want to power.
   • Ensure the GND pin is also connected to the ground of the load.

3. Verify Connections:

   • Double-check all connections to ensure proper polarity and avoid short circuits.

4. Power On:

   • Turn on the power source. The module will automatically boost the input voltage to a stable 5V output.

• Input Voltage Range: Ensure the input voltage is within the specified range (0.9V to 5V). Exceeding this range may damage the module.
• Output Current Limit: The maximum output current depends on the input voltage. For example:
  • At 1.5V input, the maximum output current is approximately 200mA.
  • At 3.7V input, the maximum output current can reach up to 500mA.
• Heat Dissipation: Avoid overloading the module, as excessive current draw may cause overheating.
• Filtering Capacitors: For improved stability, you can add a capacitor (e.g., 10µF) across the VOUT and GND pins.

The Module Mini PFM Boost Converter 5V can be used to power an Arduino UNO from a 3.7V Li-ion battery. Below is an example circuit and code:

• Connect the VIN pin of the module to the positive terminal of the 3.7V battery.
• Connect the GND pin of the module to the negative terminal of the battery.
• Connect the VOUT pin of the module to the 5V pin of the Arduino UNO.
• Connect the GND pin of the module to the GND pin of the Arduino UNO.

// Example code to blink an LED using Arduino UNO powered by the PFM Boost Converter

const int ledPin = 13; // Pin connected to the onboard LED

void setup() {
  pinMode(ledPin, OUTPUT); // Set the LED pin as an output
}

void loop() {
  digitalWrite(ledPin, HIGH); // Turn the LED on
  delay(1000);               // Wait for 1 second
  digitalWrite(ledPin, LOW);  // Turn the LED off
  delay(1000);               // Wait for 1 second
}

1. No Output Voltage:

   • Cause: Incorrect wiring or insufficient input voltage.
   • Solution: Verify the connections and ensure the input voltage is within the specified range.

2. Output Voltage Drops Under Load:

   • Cause: Excessive current draw or low input voltage.
   • Solution: Reduce the load current or increase the input voltage.

3. Module Overheating:

   • Cause: Prolonged operation at high current or insufficient ventilation.
   • Solution: Reduce the load or improve heat dissipation by adding a heatsink or airflow.

4. Output Voltage Not Stable:

   • Cause: Insufficient filtering or noisy input power.
   • Solution: Add a capacitor (e.g., 10µF to 100µF) across the VOUT and GND pins.

• Q: Can this module power a Raspberry Pi?
  A: No, the module cannot provide sufficient current for a Raspberry Pi, which typically requires 2.5A or more.

• Q: Can I use this module with a solar panel?
  A: Yes, as long as the solar panel's output voltage is within the module's input range (0.9V to 5V).

• Q: What happens if the input voltage exceeds 5V?
  A: Exceeding the input voltage range may permanently damage the module. Always use a regulated power source.

• Q: Is reverse polarity protection included?
  A: No, the module does not have reverse polarity protection. Ensure correct polarity when connecting the power source.

This concludes the documentation for the Module Mini PFM Boost Converter 5V.