MP2307 Mini DC-DC Converter Step Down Buck Converter

MP2307 Mini DC-DC Converter Step Down Buck Converter efficiently transforms a higher DC voltage to a lower, regulated DC voltage. Utilizing the highly integrated MP2307 synchronous rectified step-down regulator chip, this module achieves impressive efficiency, often exceeding 90%. Its compact size and robust performance make it an ideal solution for shrinking the power supply section of your electronic projects. You can easily power microcontrollers, sensors, and low-voltage circuits directly from a 12V battery or adapter while ensuring stable and clean power delivery. This module handles higher input voltages and delivers a steady, adjustable output current, making it essential for portable devices, automotive applications, and battery-powered systems that demand both efficiency and reliability.

Key Features:

• High Efficiency: Features synchronous rectification, significantly boosting efficiency (typically over 90%) compared to older buck converters, reducing heat waste.
• Wide Input Voltage Range: Accepts a broad input from 4.75 V up to 23 V, accommodating various common power sources like 12V batteries and 9V adapters.
• Adjustable Output Voltage: A multi-turn potentiometer allows you to precisely set the output voltage from 1 V to 17 V.
• High Output Current: Delivers a sustained output current of up to 1.8 A, with a peak capability of 3 A, handling demanding loads effortlessly.
• High Switching Frequency: Operates at a high frequency of 340 kHz, allowing the use of small-sized external components, which contributes to the module’s mini footprint.

Technical Specifications:

• Input Voltage (V_IN): 4.75 V to 23 V DC
• Output Voltage (V_OUT): 1 V to 17 V (Adjustable)
• Output Current (I_OUT): 1.8 A (Continuous); 3 A (Peak)
• Conversion Efficiency: Up to 96% (Maximum)
• Switching Frequency: 340 kHz
• Output Ripple: ≤ 30 mV

Mechanical Specifications:

• Chipset: MP2307DN (Monolithic Power Systems)
• Regulation Method: Synchronous Rectified Step-Down (Buck)
• Adjustment: On-board multi-turn trim potentiometer (Trimmer)
• Thermal Shutdown: Built-in over-temperature protection.

Dimensions:

• Length: ≈ 17 mm
• Width: ≈ 11 mm
• Height: ≈ 4 mm
• Weight: ≈ 2 g

Pinout and Wiring:

• VIN+ (Input Positive): Connect your higher DC voltage source here (4.75V to 23V).
• VIN- (Input Negative/GND): Connect the ground or negative terminal of your input power supply.
• VOUT+ (Output Positive): Provides the regulated step-down DC voltage (1V to 17V).
• VOUT- (Output Negative/GND): Connect the ground or negative terminal of your load.
• Adjustment: Rotate the on-board potentiometer clockwise to increase the output voltage.

Datasheet Reference:

• Download MP2307 Regulator Chip Datasheet

Commonly Used in:

• DIY Electronics: Powering 3.3V or 5V microcontrollers from 12V supply rails.
• RC and Drone Projects: Regulating flight battery voltage for powering various electronic accessories.
• Automotive and Vehicle Electrics: Creating stable, lower voltage rails from the car’s 12V system.

Applications:

• Battery Charging Systems: Providing precise charging voltages for various battery chemistries.
• LED Lighting Drivers: Delivering constant voltage for driving high-power LED strips and arrays.
• Portable Instrumentation: Efficiently managing power consumption in handheld measuring devices.

Equivalent Models:

• LM2596 Module: A classic, but less efficient, step-down module with similar voltage ranges.
• XL4015 Module: A higher-power buck converter, typically larger, offering currents up to 5A.
• AMS1117 Linear Regulator: A simple, low-dropout option but significantly less efficient for large voltage differences.

Package Includes:

• 1 x MP2307 Mini DC-DC Converter Step Down Buck Converter Module