Adjustable Buck Converter Overview
The CA1235 Adjustable Buck Converter Power Module is a compact, high-efficiency voltage step-down converter that gives you precise control over output voltage from 1.25 V to 30 V. Designed for hobbyists, makers, and engineers, this variable output converter is ideal for powering LEDs, microcontrollers, sensors, small motors, and more.
Key Features of the CA1235 Converter
- Adjustable output range: 1.25 V to 30 V
- Maximum output current: up to 3 A (depends on cooling and input voltage)
- High efficiency: typically over 90% under normal load
- Near-silent operation using CA1235 converter technology
- Compact form factor: smaller than a business card for tight enclosures
- Durable power module circuit with quality PCB components and aluminum heat sink
- Safety features: over-current protection and thermal shutdown
Technical Specifications
- Input voltage: typical range 4.5 V to 40 V (check device limits before use)
- Output voltage: adjustable 1.25 V to 30 V
- Output current: up to 3 A (continuous rating depends on heat dissipation)
- Efficiency: >90% typical
- Core chip: CA1235 converter
- Cooling: aluminum heat sink mounted on PCB
- Protection: over-current and thermal protection
Benefits – Why Use This Voltage Step-Down Converter
- Energy efficient power conversion that reduces heat and extends battery life
- Precise voltage control for sensitive electronics and experiments
- Compact size saves space in enclosures and portable builds
- Robust build quality reduces failures due to vibration and heat
Applications and Use Cases
- Powering microcontrollers (Arduino, ESP32, STM32) with stable voltages
- Driving LED arrays, strips, and single high-power LEDs
- Supplying sensors, modules, and communication boards in prototypes
- Small motor and actuator power when controlled current is required
- Bench power supply projects and DIY test rigs
Installation and Tuning Tips
Basic Setup
- Connect input power to VIN and ground to GND. Ensure input voltage is within recommended range.
- Connect the load to VOUT and GND.
- Turn the adjustment potentiometer slowly while measuring the output with a multimeter until the desired voltage is reached.
Thermal and Current Management
- Keep the module ventilated. The aluminum heat sink improves thermal performance but allow airflow in confined enclosures.
- For sustained high-current loads near 3 A, add external heat sinking or forced air cooling.
- Observe the module’s over-current and thermal protection behavior during testing to understand trip points in your setup.
Protection and Reliability
The built-in over-current and thermal protection safeguards the module and attached devices. The power module circuit uses robust components mounted on a reinforced PCB to resist heat and vibration. The internal CA1235 converter chip provides smooth current adjustment to prevent voltage oscillation and audible noise.
Why Choose the CA1235 Buck Converter Module
- Reliable regulation using proven CA1235 technology
- High efficiency reduces power loss and heat generation
- Small size and straightforward tuning for fast prototyping
- Safety features deliver peace of mind in both hobby and professional projects
About This Power Module Circuit
Born from hands-on prototyping needs, this customizable power module is crafted for creators who demand reliable, repeatable voltage regulation. Slip it into your project and get consistent results on the first try.
Note: Pictures are for illustration purposes only.
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