Name: LM2596 DC-DC Step-Down Module with Voltmeter | Buy Online
Brand: Sun Cheong Computer Company Limited
SKU: 21PA000482
Price: 35.0 HKD
Availability: InStock

Short Product Description

Need precise voltage control for your next electronics project? The LM2596 DC-DC Step-Down Module features an integrated LED voltmeter for real-time monitoring, eliminating the guesswork from your power management. Easily convert a 4.5V-40V input to a highly stable 1.25V-37V output. Backed by decades of electronic component expertise, this module is perfect for DIYers, STEM students, and professional engineers demanding reliable power conversion.

Key Features

Wide Voltage Range: Converts 4.5V-40V input down to a highly adjustable 1.25V-37V output, ensuring compatibility with a massive variety of power sources and devices.
Built-in LED Voltmeter: Features a clear digital display for instant voltage readings, saving you time and the need for external testing equipment.
High Conversion Efficiency: Operates at up to 90% efficiency, which means less energy is wasted as heat, ensuring longer lifespan and stable operation.
Robust 3A Output: Delivers a steady maximum output current of 3A, providing ample power for microcontrollers, sensors, and small motors.
Industrial-Grade Materials: Constructed with premium FR4 material and high-quality electronic components for maximum durability and reliability.
Easy to Tune: Features a precision potentiometer, allowing you to dial in the exact voltage required with a simple turn of a screwdriver.

Full Product Description

Reliable Power Conversion for Every Project

Fluctuating voltage is the enemy of sensitive electronics. Whether you are building a custom robotic arm, prototyping a new circuit, or modifying your vehicle's power supply, delivering the exact voltage required is critical. The LM2596 DC-DC Buck Converter is designed to solve exactly this problem, offering a robust and highly stable power supply solution. Sourced with the rigorous standards of Sun Cheong Computer Co. Ltd.'s 20+ years of hardware expertise, you can trust this component to keep your devices running safely.

Real-Time Voltage Monitoring at a Glance

Forget the hassle of constantly probing your circuit with an external multimeter. This module features a built-in, bright LED voltmeter that displays your voltage in real-time. This allows for rapid, on-the-fly adjustments during testing and ensures your connected components are receiving the precise power they need to function optimally.

Versatile and Built to Last

Designed on a high-quality FR4 PCB, this step-down module is built to withstand rigorous use in both hobbyist workshops and industrial environments. It efficiently handles up to 3A of output current with a maximum conversion efficiency of 90%, minimizing heat generation and maximizing performance. It seamlessly handles common conversions like 24V to 12V, 12V to 5V, or 12V to 3.3V, making it an indispensable tool in any engineer's kit.

Technical Specifications

Model: LM2596S (with LED display)
Input Voltage: 4.5V ~ 40V DC
Output Voltage: 1.25V ~ 37V DC (adjustable)
Maximum Output Current: 3A
Conversion Efficiency: up to 90%
Operating Temperature: -45°C to +85°C
Board Material: FR4 PCB + electronic components
Dimensions: approx. 66 × 36 × 14 mm
Weight: approx. 23 g

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q: How do I adjust the output voltage?
A: Simply use a small flathead screwdriver to turn the brass screw on the blue potentiometer. Turn it clockwise to increase the voltage and counter-clockwise to decrease it. Keep an eye on the LED display to hit your target voltage.

Q: Can this module step up the voltage (e.g., 5V to 12V)?
A: No, this is strictly a "buck" (step-down) converter. The input voltage must always be higher than your desired output voltage by at least 1.5V to operate correctly.

Q: Do I need to add a heatsink to this module?
A: If you are drawing continuous current above 2A or operating in a high-temperature environment, we highly recommend adding a small heatsink to the LM2596 chip to maintain thermal stability and ensure longevity.

Target Users / Applications

DIY Electronics Hobbyists: Perfect for powering Arduino, Raspberry Pi, and custom breadboard projects.
STEM Education: An excellent, visual learning tool for students understanding voltage regulation.
Automotive/Marine Modifications: Safely step down 24V or 12V battery power to 5V for USB charging or dashcams.
Enterprise/Engineering Procurement: Reliable component for product prototyping and testing jigs.