LM2596S DC-DC Buck Converter Adjustable Power Supply

The LM2596S DC-DC Buck Converter Adjustable Power Supply is a step-down voltage regulator module that enables efficient voltage conversion from a higher input voltage to a lower, regulated output. Based on the LM2596S switching regulator IC, this module is widely used in battery-powered systems, DIY electronics, and power management applications due to its high efficiency, compact design, and adjustable output range.

Key Features of LM2596S DC-DC Buck Converter:

• Wide Input Voltage Range: Operates between 4V to 40V DC input.
• Adjustable Output Voltage: Output voltage can be set from 1.25V to 35V.
• High Efficiency: Up to 92% efficiency with low heat generation.
• Built-in Output Short Protection: Protects circuit from overload conditions.
• Compact Size: Suitable for space-constrained embedded applications.

Technical Specifications of LM2596S DC-DC Buck Converter:

• 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 of LM2596S Module:

• Module Dimensions: 43mm x 21mm x 14mm (LxWxH)
• Weight: Approx. 12 grams
• Heatsink Provision: Yes, for higher current applications
• Mounting Holes: No mounting holes on standard module

Dimensions:

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

Mounting Options:

• Soldered Mount: Directly solderable to PCB or perf board
• Inline Wiring: Can be wired using screw terminals or header pins

Schematic Diagram, Connection, Wiring and Pinout of LM2596S Module:

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

Datasheet of LM2596S Buck Converter IC:

• Download LM2596S Datasheet (PDF)

Applications of LM2596S DC-DC Buck Converter Module:

• 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 of LM2596S Buck Converter Module:

• 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