Description
Product Overview
The LM2596 DC-DC Buck Converter Module is a high-performance, fixed-output step-down switching regulator designed to convert higher DC voltages (such as 24V) into a stable 12V output. Based on the industry-standard LM2596-12 chip from Texas Instruments, this module provides a simple, reliable, and efficient solution for powering 12V devices from higher voltage sources like 24V industrial power supplies, 36V battery banks, or 48V solar systems .
Unlike traditional linear voltage regulators that dissipate excess energy as heat, this switching regulator utilizes Pulse Width Modulation (PWM) technology to achieve conversion efficiencies of up to 92%. This means it runs much cooler and wastes significantly less power, making it ideal for battery-powered or enclosed applications . The module is capable of delivering up to 3A of continuous output current, enough to power 12V LED strips, fans, pumps, relays, sensors, and other 12V equipment.
The fixed 12V output version eliminates the need for manual voltage adjustment—simply connect your input power and the module provides a precise, regulated 12V output. This makes it a perfect choice for applications where a stable, preset voltage is required without the risk of accidental misadjustment .
Key Features
-
Fixed 12V Output: Factory-preset to deliver a precise 12V output, eliminating the need for manual voltage adjustment and potential misconfiguration
-
High-Efficiency Step-Down Conversion: Utilizes the LM2596 switching regulator to achieve up to 92% efficiency, minimizing power loss and heat generation compared to linear regulators
-
Wide Input Voltage Range: Accepts DC input from 4.5V to 40V (some variants support up to 60V), making it compatible with 12V, 24V, 36V, and 48V systems
-
3A High Output Current: Capable of delivering up to 3A of continuous output current. For loads above 2A, a heatsink is recommended
-
Fixed 150kHz Switching Frequency: Allows for smaller-sized filter components and lower output ripple compared to older regulator designs
-
Comprehensive Protection: Includes built-in thermal shutdown and current-limit protection to safeguard the module and your connected devices under fault conditions
-
Low Output Ripple: Delivers clean power with output ripple typically less than 30mV, suitable for sensitive electronics
-
Requires Only 4 External Components: Simple design with minimal external components, making the module compact and reliable
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Input Voltage | DC 4.5V – 40V (12V, 24V, 36V typical) |
| Output Voltage | Fixed 12V DC (±4% tolerance) |
| Output Current | 3A (Max), 2A – 2.5A Recommended (with heatsink >2A) |
| Switching Frequency | 150 kHz |
| Conversion Efficiency | Up to 92% (Typical) |
| Output Ripple | ≤ 30mV (Typical) |
| Line and Load Regulation | Excellent (Fixed output version) |
| Quiescent Current | Typically 5mA – 10mA (Standby: 80µA) |
| Protection Features | Thermal Shutdown, Current Limit |
| Operating Temperature | -40°C to +85°C |
| Module Dimensions | Approx. 43mm × 21mm × 14mm |
| Weight | Approx. 10g – 15g |
Reviews
There are no reviews yet.