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LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply Module

LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply Module

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  • The output voltage is DC 1.5V to 35V continuously adjustable, high-efficiency maximum output current of 3A.
  • A DC-DC Buck steps down module with a 1.5V to 35V Voltage continuously adjustable.
  • High efficiency with a maximum output current of 3A. (Additional heatsink is required)
  • Rectification: non-synchronous rectification
  • The module features a short circuit protection which helps current limiting, since the recovery

LM2596 DC-DC Buck Module

The LM2596 DC-DC Buck Converter Step-Down Power Supply Module is a step-down(buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. The LM2596 series operates at a switching frequency of 150kHz, thus allowing smaller-sized filter components than what would be required with lower-frequency switching regulators.

This buck converter is internally compensated to minimize the number of external components to simplify the power supply design.

Since the LM2596 converter is a switch-mode power supply, its efficiency is significantly higher than popular three-terminal linear regulators, especially with higher input voltages. The LM2596 operates at a switching frequency of 150 kHz thus allowing smaller-sized filter components than what would be needed with lower-frequency switching regulators.


  • Switching Frequency: 150KHz
  • Rectification: Non-synchronous rectification
  • Internally Compensated for minimized external components
  • Efficient operation with higher input voltages compared to three-terminal linear regulators
  • Short circuit protection for current limiting and recovery.


Pinout Of LM2596 DC-DC Buck Module


  • Used for USB on the go.
  • Used for Point of load converters for PCs and laptops.
  • Used for Battery Chargers.
  • Used for Quad Copters.
  • Used for Power audio amplifiers.

Package Includes:

  • 1 x LM2596 DC-DC Buck Module


Material PCB 
Model  LM2596
Output Voltage  1.5-35V
Switching Frequency 150KHz
Output current Rated current is 2A, maximum 3A(Additional heatsink is required)
Dimensions 3 x 2 x 1cms 
Weight 5 grams

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

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1. What is LM2596 DC-to-DC Buck Module?

This LM2596 DC-DC buck converter step-down power module can drive a load up to 3A with high efficiency. It has a high-precision potentiometer for adjusting the output voltage.

2. What are buck converters used for?

The buck converter is a ubiquitous DC-DC converter that efficiently converts a high voltage to a low voltage efficiently. Efficient power conversion extends battery life, reduces heat, and allows for the creation of smaller gadgets. The buck converter can be used in a variety of interesting applications.

3. Are DC to DC converters efficient?

Yes, DC-DC converters are common in battery-driven, portable, and other high-efficiency systems that can deliver efficiencies greater than 95% while boosting, reducing, or inverting supply voltages.

4. How does a buck converter reduce voltage?

The buck converter can reduce the voltage from the input to the output by constantly switching between on and off states. The converter is said to be in continuous mode if the current through the inductor never drops to zero during the entire process. Otherwise, it is in discontinuous mode.

5. What is the adjustable voltage of LM2596?

The LM2596 DC-DC Buck Converter is capable of providing a continuously adjustable output voltage ranging from 1.5V to 35V.