Features
High-Efficiency Switching Regulation. The defining characteristic of the CA-1235 is its ability to achieve high conversion efficiency.
Input Voltage: DC 5 - 16V
Current:
- up-to 1.5A continues
- max 3A (Need heatsink)
Traditional linear regulators convert excess voltage into heat. For example, reducing 12V to 5V at 1A through a linear regulator wastes approximately 7 watts of power as heat. In contrast, the CA-1235 performs the same conversion with efficiencies often exceeding 90%, significantly reducing thermal losses.
This efficiency advantage results in:
- Lower operating temperatures
- Longer battery runtime
- Reduced cooling requirements
- Improved system reliability
Wide Input Voltage Range
The module accommodates a broad range of input voltages.
Common input sources include:
- 5V USB supplies
- 7.4V lithium battery packs
- 12V automotive systems
- Solar charging systems
This flexibility enables a single module design to serve multiple applications.
Adjustable Output Voltage
One of the most useful characteristics of the CA-1235 is its adjustable output.
Supported output levels include:
| Common Output | Typical Use |
| 1.25V | Reference circuits |
| 1.5V | Legacy logic systems |
| 1.8V | Modern processors |
| 2.5V | FPGA and DSP rails |
| 3.3V | IoT and wireless modules |
| 5V | Microcontrollers and USB devices |
- Compact Physical DesignThe module is exceptionally small relative to its power-handling capability.Its miniature size makes it suitable for:
- Portable devices
- Wearable systems
- Embedded electronics
- UAV platforms
- Space-constrained enclosures
- Despite its size, it can deliver substantial current for many embedded applications.
Low Output Ripple
- Switching regulators inherently generate ripple, but the CA-1235 maintains relatively low output noise.Typical ripple levels remain below: 30mVThis performance makes the module suitable for powering:
- Digital circuits
- Communication modules
- Sensors
- Embedded processors
- without causing instability or significant interference.
3A Output Capability
The CA-1235 supports output currents up to 3A under favorable thermal conditions.
Practical recommendations include:
- Up to 1.5A continuous without additional cooling
- Up to 2A with adequate airflow
- Up to 3A with enhanced thermal management
- This capability allows the module to power relatively demanding loads while maintaining compact dimensions.
Simple Integration
- The module exposes straightforward power connections:
- VIN+
- VIN–
- VOUT+
- VOUT–
- No specialized programming or configuration is required.
Installation generally involves:
- Connecting the input supply.
- Adjusting the output voltage.
- Verifying voltage with a multimeter.
- Connecting the target load.
- This simplicity contributes to the module’s widespread adoption.
CA-1235 DC-DC Step Down Buck Converter Module, Adjustable Voltage Regulator Power Supply Board
- Product Code: POWER-STEP-DOWN-CA-1235
- Availability: 25
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RM5.99