Name: M2596S DC-DC Step Down Variable Voltage Regulator Power Supply Module - UNIVERSAL CIRCUIT SYSTEM
SKU: UCS-0179
Price: 80.00 BDT
Availability: InStock

Product Overview

The LM2596S DC-DC Step-Down Buck Converter Module is an industry-standard, high-efficiency adjustable voltage regulator designed to step down a higher DC input voltage into a stable, lower DC output voltage [context]. It operates as a highly reliable switching power regulator, offering significantly better thermal performance and energy efficiency than old-school linear regulators (like the LM78XX series). This module serves as a versatile power-matching block for electronics enthusiasts, allowing various system components with different voltage requirements to draw clean power safely from a single high-voltage master power rail [context].

High-Performance Power Engineering

Advanced LM2596S Regulator IC: At the heart of the board is the rugged LM2596S monolithic switching regulator chip [context]. It features an internal fixed-frequency oscillator running at 150 kHz, which allows the board to regulate voltage dynamically while keeping the overall PCB footprint compact.
Precision Multi-Turn Potentiometer: The prominent blue trimmer screw (W103 potentiometer) provides smooth, fine-grained control over your output voltage. Because it is a multi-turn resistor, you can dial in target voltages down to fractions of a volt without erratic jumps.
Robust Magnetic and Diode Filtering: The circuit layout is heavily optimized using a high-current 470 closed-magnetic core inductor alongside a heavy-duty SS34 Schottky barrier rectifier diode. This ensures high power throughput, fast switching responses, and low electrical noise.
Premium Electrolytic Smoothing Capacitors: The board incorporates dual high-voltage filtering capacitors (a 100µF 50V tank on the input lane and a 220µF 35V tank on the output lane). These work together to iron out incoming ripples and deliver clean, rock-solid direct current to your load.

Electrical & Operational Specifications

Flexible Input Envelope: Accepts any direct current input voltage spanning from 3.2V up to 40V DC [context]. (Note: The input voltage must be at least 1.5V higher than the desired output voltage to maintain proper regulation).
Adjustable Output Window: Smoothly steps down to deliver a user-defined output voltage anywhere from 1.25V to 35V DC [context].
High Output Current Capacity: Supports a continuous, daily output current of 2.0A under normal convection cooling. With an added external aluminum heatsink or active fan cooling, the module can safely peak at a full 3.0A of output load.
Thermal and Over-Current Safety: Built with internal safety nets including thermal shutdown mechanisms and full current-limit protection to protect the module from permanent failure during accidental overloads.

Clean 4-Pad Solder Terminal Layout

The compact circuit board features oversized, clearly labeled corner solder pads to handle heavy-gauge wire leads or standard pin headers:

IN+: Positive Input Power Rail (from your main power adapter, battery bank, or solar array).
IN-: Negative Input Power Rail / Common Ground.
OUT+: Regulated Positive Output Rail (plugs directly into your sensitive target equipment).
OUT-: Regulated Negative Output Rail / Common Ground.

Common Field Applications

Microcontroller & Robotics Power Conversion: Stepping down a standard 12V or 24V industrial power brick or 4S LiPo battery down to a clean 5V or 3.3V rail to safely run Arduinos, Raspberry Pis, and servo controllers.
DIY Benchtop Power Supplies: Wiring the board to an old laptop charger to build a portable, fully adjustable multi-voltage power station for testing components.
LED Driver Infrastructure: Dropping fluctuating DC inputs down to the exact fixed forward-voltage limits required by high-power LED arrays.
Automotive Tech Installs: Converting 12V car battery systems to clean 5V USB power lines to run dash cams, GPS units, and interior accent lighting safely without electrical spikes.