Mini DC DC Step Down Module (12-24V To 5V ) Voltage 3A

From the shop's description

DC-DC Step Down Adjustable Voltage Regulator Module (Mini Buck Converter) Description The DC-DC Step Down (Buck) Converter Module is a high-efficiency adjustable voltage regulator designed to convert a higher DC input voltage into a stable lower output voltage. It features a compact design, high conversion efficiency, and an onboard precision potentiometer for easy voltage adjustment. This module is widely used in power supply projects, Arduino systems, battery powered devices, and embedded electronics applications. Technical Specifications Input Voltage: 4.5V – 28V DC Output Voltage: 0.8V – 20V DC (Adjustable) Maximum Output Current: 3A (Recommended ≤ 2A for stable operation) Conversion Efficiency: Up to 96% Switching Frequency: 1.5 MHz Voltage Regulation: ±1% Operating Temperature: -40°C to +85°C Adjustment Method: Multi-turn precision potentiometer Module Type: Step-Down (Buck Converter) Output Ripple: < 30mV Pin Configuration Pin Description IN+ Input Positive IN- Input Negative OUT+ Output Positive OUT- Output Negative Features High efficiency up to 96% Small compact size Adjustable output voltage Built-in precision potentiometer Over-temperature protection High switching frequency design Suitable for DIY and embedded systems Typical Applications Arduino power supply Battery powered devices Robotics projects LED power supply DIY electronics projects Portable electronics Input Pins (Power Supply) VIN+ → Positive input voltage VIN− → Negative input (GND) These pins connect to the power source such as a battery, power adapter, or solar system. Battery +12V → VIN+ Battery GND → VIN− Output Pins (Regulated Voltage) B1 → Battery + B2 → Battery - P1 → Output + P2 → Output - VOUT+ → Positive output voltage VOUT− → Negative output (GND) These pins connect to the device you want to power . Example: VOUT+ → Arduino / Motor / LED + VOUT− → Device GND Voltage Adjustment The module includes a multi-turn potentiometer to adjust the output voltage. Turn clockwise → Increase voltage Turn counter-clockwise → Decrease voltage ⚠ Always measure the output using a multimeter when adjusting the voltage. Simple Connection Diagram Input Power → VIN+ / VIN− Output to Device → VOUT+ / VOUT−