MP2307 Step-Down Buck Adjustable Power Supply

The MP2307 is a monolithic synchronous buck regulator commonly found on small, adjustable step-down power supply modules. This compact and efficient module converts a higher input voltage to a lower, stable output voltage, making it suitable for a variety of electronic projects.

Key Features and Specifications:

• Module type: Non-isolated step-down (buck) converter with synchronous rectification.
• Input voltage: Typically accepts a DC input voltage between 4.75V and 23V.
• Adjustable output voltage: The output can be adjusted between 1.0V and 17V (some versions support up to 20V) using an on-board potentiometer. The output voltage must be less than the input voltage.
• Output current: The rated continuous output current is typically 1.8A, with a maximum peak current of 3A. For sustained high currents, extra cooling may be required.
• High efficiency: The module boasts a high conversion efficiency of up to 96%.
• High switching frequency: The MP2307 operates at a fixed switching frequency of 340 kHz.
• Compact size: The modules are very small, often measuring around 17 x 11 x 4 mm, making them ideal for space-constrained applications. 

• Powering microcontrollers: Provides a stable voltage supply for devices like Arduino, ESP32, and Raspberry Pi.
• Battery-powered devices: Steps down the voltage from battery packs to power various electronic circuits.
• DIY projects: Used in a wide range of hobbyist electronics, such as custom-built USB chargers or other DC power distribution needs. 

• No short-circuit protection: Many MP2307 modules lack internal short-circuit protection, so it is crucial to avoid shorting the output.
• No input reverse polarity protection: The input terminals do not have reverse polarity protection, and connecting them incorrectly can damage the module.