LM2596S DC-DC Converter 3A Step Down Module

LM2596S DC-DC Converter 3A Step Down Module

The LM2596S step-down module is based on the monolithic integrated circuit family designed for 3 A continuous load current. It serves as a high-efficiency buck converter, taking a higher input DC voltage and converting it to a lower regulated output voltage using switch-mode technology with an internal 150 kHz oscillator.

Thanks to its fixed-frequency switcher design, the module allows for smaller external inductors and capacitors compared to lower-frequency linear regulators. The module form factors typically include an adjustable output version, enabling versatile use across a range of output voltages. It’s ideal when space is constrained and efficiency is important.

In its typical module form, this converter includes the LM2596S IC, mounting pad/board, potentiometer for adjustment (in adjustable versions), and input/output terminals. Provided the input is sufficiently above the output, and thermal/heat-sinking is considered, the module provides a compact, adjustable, efficient solution for many power-supply tasks.

Features:

• Capable of driving up to 3 A load current (in ideal conditions).
• Wide input voltage range (e.g., 3.2-40 V in module form) for flexible operation.
• Adjustable output voltage version available (approx. 1.2-35 V in module form).
• High switching frequency (~150 kHz) for smaller external components.
• Built-in protection features: e.g., short-circuit/current-limit, thermal shutdown in the IC version.
• Low external-component count due to internal compensation and oscillator.

Specifications:

Applications:

• On-board power supply modules for electronics projects.
• Battery-powered system voltage regulation.
• Step-down power for logic/microcontroller peripherals.
• General purpose buck conversion for hobby/DIY electronics.

Package Contents:

• 1x LM2596S DC-DC Converter 3A Step Down Module

Datasheet:

• System documentation LM2596