Adjustable Buck Converter 3A – 3.2–40V to 1.25–35V

The DC-DC Adjustable Buck Converter 3A (3.2–40 V to 1.25–35 V) is a step-down voltage regulation module based on the LM2596 switching controller. It converts a higher DC input voltage into a lower adjustable DC output using an onboard potentiometer for precise voltage setting. The module supports up to 3 A output current and operates with high conversion efficiency up to approximately 92% under optimal load conditions. It is designed for stable low-ripple power delivery, making it suitable for embedded systems, prototyping, and regulated DC power supply applications. The compact module is compatible with a wide range of electronic and industrial low-voltage systems. Features - Switching Controller IC: LM2596-based step-down regulation - Input Voltage Range: 3.2–40 V DC - Output Voltage Adjustment: 1.25–35 V DC via onboard potentiometer - Output Current Capability: Up to 3 A - Conversion Efficiency: Up to 92% under optimal load conditions - Switching Frequency: 65 kHz fixed-frequency operation - Output Ripple Level: <30 mV for stabilized DC output - Module Construction: PCB-mounted DC-DC buck converter board Specifications Input Voltage Range | 3.2–40 V DC Output Voltage Range | 1.25–35 V DC (adjustable via potentiometer) Output Current | Up to 3 A Conversion Efficiency | Up to 92% under optimal load conditions Switching Frequency | 65 kHz fixed-frequency operation Output Ripple Voltage | <30 mV Regulator Type | LM2596-based DC-DC buck converter Module Type | PCB-mounted step-down voltage regulator Adjustment Method | Onboard potentiometer control Application Area | Embedded systems, DIY electronics, and regulated DC power supplies Links - LM2596 Datasheet