LM317 DC to DC Converter (Step Down Power Supply)

LM317 DC to DC Converter is a high-performance adjustable voltage regulator module designed to deliver precise, stable, and reliable DC output for a wide range of electronic applications. Built around the industry-proven LM317 voltage regulator IC, this module allows users to easily configure output voltages from 1.25V to 37V, making it ideal for DIY electronics projects, embedded systems, robotics, IoT devices, and industrial power supplies.

Engineered for efficiency, durability, and flexibility, the LM317 DC to DC Converter provides smooth voltage regulation with excellent load and line regulation characteristics. Whether you are stepping down voltage for sensitive microcontrollers or powering analog circuits that require noise-free operation, this converter ensures consistent performance under varying load conditions. Its compact design and screw terminal connections make installation quick and convenient for both beginners and professionals.

Key Specifications

• Input Voltage Range: 4.5V – 40V DC

• Output Voltage Range: 1.25V – 37V DC (adjustable via onboard potentiometer)

• Maximum Output Current: Up to 1.5A (with proper heat sinking)

• Voltage Regulation Accuracy: ±1% typical

• Load Regulation: 0.1% – 0.5%

• Ripple Rejection: Up to 80 dB

• Efficiency: High efficiency depending on voltage differential and load

• Operating Temperature Range: -40°C to +125°C

• Protection Features: Thermal shutdown, current limiting, short-circuit protection

• Mounting Type: PCB mount / module-based

• Dimensions: Compact and lightweight for space-constrained designs

Key Features

1. Adjustable Output Voltage

The LM317 DC to DC Converter offers a wide adjustable output range from 1.25V to 37V using a simple potentiometer or resistor network. This eliminates the need for multiple fixed-voltage regulators and makes the module ideal for prototyping and experimental setups.

2. Stable and Low-Noise Performance

Designed for sensitive electronic circuits, the module delivers excellent ripple rejection and output stability. It ensures clean DC power for microcontrollers, sensors, RF modules, and analog signal processing circuits.

3. Built-in Protection Mechanisms

With integrated thermal shutdown, short-circuit protection, and current limiting, the LM317 module protects both the converter and connected devices from damage due to overheating or overload conditions.

4. High Output Current Capability

Capable of delivering up to 1.5A with proper heat dissipation, this DC to DC converter is suitable for powering motors, LED drivers, development boards, and communication modules.

5. Compact and Easy to Use Design

The module features screw terminals and onboard adjustment trimmer, making voltage configuration and wiring simple. Its compact footprint fits easily into embedded systems, power banks, control panels, and custom electronics enclosures.

6. Wide Application Compatibility

Compatible with a broad range of input sources including batteries, solar panels, adapters, and unregulated DC power supplies, this converter is ideal for both portable and stationary applications.

Applications

The LM317 DC to DC Converter is widely used across academic, commercial, and industrial electronics applications:

• DIY Electronics Projects: Ideal for breadboard prototyping and hobby electronics where adjustable voltage is required.

• Microcontroller Power Supplies: Powers Arduino, Raspberry Pi peripherals, ESP32 boards, and development kits safely and reliably.

• Battery Charging Circuits: Used in custom battery chargers and power conditioning modules.

• LED Drivers: Suitable for powering LEDs with controlled voltage output in lighting systems and display panels.

• Robotics and Automation: Provides stable voltage rails for sensors, motors, and control circuits.

• Test and Measurement Equipment: Useful in laboratory benches for adjustable voltage experiments and testing environments.

• Industrial Control Systems: Powers PLC modules, instrumentation amplifiers, and communication interfaces.

• Telecommunication Equipment: Delivers regulated voltage to RF modules, transceivers, and networking devices.

Why Choose the LM317 DC to DC Converter?

• Highly reliable and proven LM317 architecture

• Wide adjustable output voltage range

• Built-in safety protections

• Compact, lightweight, and easy installation

• Ideal for both beginners and professionals

• Cost-effective power regulation solution

The LM317 DC to DC Converter Module is a must-have component for engineers, students, makers, and system integrators looking for a dependable, adjustable voltage regulation solution. Its robust design, precision output, and versatile application support make it a trusted choice for modern electronics development and industrial power management systems.

Package Includes:

1 x LM317 DC to DC Converter

FAQ

1. Where can we buy this LM317 DC to DC Converter?

This product is available online https://aiiottech.in/product/lm317-dc-to-dc-converter/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this LM317 DC to DC Converter after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: LM317 voltage regulator tutorial