LM2596S DC-DC Buck Converter Adjustable Power Supply

LM2596S DC-DC Buck Converter Adjustable Power Supply is a high-efficiency step-down voltage regulator module capable of converting a wide input voltage range to a lower, stable output. It’s widely used in DIY electronics, embedded systems, and battery-powered devices to provide regulated power for microcontrollers, sensors, and peripherals.

Key Features:

• Step-Down Conversion: Efficiently converts higher DC voltage to a lower regulated output.
• Wide Input Range: Operates between 4V to 40V DC input.
• Adjustable Output: Output voltage can be set from 1.25V to 35V using onboard potentiometer.
• High Efficiency: Efficiency up to 92% depending on input/output levels.
• Compact Size: Small footprint allows easy integration into compact circuits.

Technical Specifications:

• Input Voltage Range: 4V – 40V DC
• Output Voltage Range: 1.25V – 35V DC (adjustable via trimpot)
• Output Current: Rated up to 2A, maximum 3A (with heatsink)
• Conversion Efficiency: Up to 92% (depending on input/output voltage and load)
• Switching Frequency: 150kHz
• Output Ripple: Approximately 30mV (typical)
• Load Regulation: ±0.5%
• Voltage Regulation: ±0.5%

Mechanical Specifications:

• Module Dimensions: Approx. 45mm × 20mm × 14mm
• Adjustable Potentiometer: For tuning output voltage
• Heatsink Compatible: IC has pad for passive cooling or heatsink attachment
• Connectors: IN+, IN−, OUT+, OUT− labeled screw terminals

Dimensions:

• Length: 43mm
• Width: 21mm
• Height: 14mm (with components)

Wiring and Connections:

• IN+ : Positive input voltage
• IN- : Ground input
• OUT+ : Positive regulated output
• OUT- : Ground output
• Adjustment: Use potentiometer to fine-tune output voltage

Datasheet and Documentation:

• Download LM2596S Module Datasheet (PDF)

Applications:

• Battery-Powered Devices: Step down voltage to required level
• Arduino/Raspberry Pi Projects: Provide stable supply for boards
• LED Drivers: Power high-brightness LEDs with regulated current
• Solar Power Systems: Step down solar panel voltage
• DIY Electronics: General-purpose voltage regulator for custom circuits

Equivalent Modules:

• MP1584: Compact DC-DC converter with 3A output and 1MHz switching
• XL4015: High-power buck converter with up to 5A output
• LM2576: Similar switching regulator with slightly lower frequency
• AMS1117: Linear voltage regulator (low efficiency but compact)

Package Includes:

• 1 x LM2596S DC-DC Buck Converter Adjustable Power Supply Module