CA-1235 Adjustable Buck Converter Module

The CA-1235 Adjustable Buck Converter Module (Model CA1235) is a compact and powerful DC-DC step-down converter that efficiently converts higher voltage (up to 35V DC) into a stable lower voltage output. This module is perfect for electronics hobbyists, engineers, and DIY enthusiasts who need to regulate and power various Arduino, microcontroller, or LED circuits safely and reliably.

It features adjustable output voltage via a precision multi-turn potentiometer, allowing for accurate control from 1.25V to 30V, depending on input voltage. With up to 3A output current and 95% conversion efficiency, it ensures stable power delivery with minimal heat generation.

This makes it ideal for battery-powered systems, robotics, solar panels, automated devices, and industrial control systems requiring efficient voltage regulation.

Key Features

✅ Adjustable Output Voltage: 1.25V–30V DC (depending on input).
✅ High Efficiency: Up to 95% for reliable, low-heat performance.
✅ High Output Current: Supports up to 3A continuous load.
✅ Input Voltage Range: 4V–35V DC.
✅ Compact Design: Perfect for embedded and portable electronics.
✅ Overcurrent and Overheat Protection: Ensures module safety and durability.
✅ Integrated LED Power Indicator: Visual status indication for quick diagnostics.
✅ Screw Terminals: Easy connection for input/output wiring.

Technical Specifications

• Model: CA-1235

• Input Voltage: 4V to 35V DC

• Output Voltage: Adjustable 1.25V to 30V DC

• Output Current: Up to 3A (recommended continuous 2A for safety)

• Efficiency: 92% – 95%

• Output Ripple: <30mV

• Switching Frequency: 150kHz

• Module Type: Step-down (Buck) Converter

• Operating Temperature: -40°C to +85°C

• Dimensions: Approx. 43mm x 21mm x 14mm

Applications

• ⚡ Arduino and Raspberry Pi Power Supply

• 🔋 Battery Charging Circuits

• 💡 LED Drivers and Light Controllers

• ⚙️ Robotics and Automation Projects

• 🔧 DC Motor Speed Controllers

• 🧠 DIY Electronic Kits and Educational Projects

• ☀️ Solar Panel Power Systems

Precautions

⚠️ Always ensure the input voltage is higher than the desired output voltage.
⚠️ Avoid overloading beyond the maximum rated current (3A).
⚠️ Use a heatsink if drawing near full load continuously.
⚠️ Double-check polarity connections before powering.
⚠️ For safety, measure the output voltage before connecting to sensitive devices.

Internal Links

• Arduino Boards & Accessories

• Power Supply Modules

• Sensors & Modules

• Electronic Components

YouTube Tutorial

🎥 Watch: How to Use a CA-1235 Adjustable Buck Converter Module

Summary

The CA-1235 Adjustable Buck Converter Module (CA1235) is a must-have voltage regulator for any DIY electronics or embedded project. With its wide voltage range, excellent efficiency, and easy adjustment, it ensures safe and stable power for sensitive devices. Whether you’re building a custom power supply, charging circuit, or Arduino-based automation project, this module offers professional performance in a compact design.