Regulators
Boardoza NCP3334A 5V Low Dropout Voltage Regulator Breakout Board
The Boardoza NCP3334A 5V Low Dropout Voltage Regulator Breakout Board is a high-precision, low-noise linear voltage regulator designed around the onsemi NCP3334A chip. It provides a stable 5V regulated output with ±0.9% accuracy and can supply up to 500 mA continuous current. Its low dropout voltage and compact form factor make it ideal for embedded systems, automation projects, and battery-powered designs. This board ensures reliable operation for Arduino, Raspberry Pi, ESP32, and other microcontroller-based systems, supporting a variety of IoT, sensor, and control applications that require a clean and precise 5V power source.

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Key Features
- Stable 5V Output: Provides a clean and regulated voltage supply with ±0.9% accuracy.
- Low Dropout Operation: Efficient performance even with minimal voltage difference between input and output.
- Low Noise Design: Ensures optimal power quality for analog and communication circuits.
- Reverse Bias Protection: Protects against reverse current conditions.
- Low Shutdown Current: Reduces power draw during inactive operation.
- No Minimum Load Required: Operates stably across all load conditions.
- 500 mA Output Capability: Suitable for powering microcontrollers, sensors, and logic circuits.
- Perfect for Embedded Systems: Reliable 5V source for Arduino, Raspberry Pi, ESP32, and other digital platforms.
Technical Specifications
- Manufacturer
- onsemi
- Model
- NCP3334A
- Type
- Linear LDO Regulator
- Input Voltage
- 5.3V – 12V
- Output Voltage
- 5V (Fixed)
- Max Output Voltage
- 500 mA
- Accuracy
- ±0.9% at 25°C
- Functions
- 5V Low Dropout Regulator
- Protections
- Reverse Bias, Thermal Shutdown Operating
- Operating Temperature
- –40°C ~ +150°C
- Board Dimensions
- 20mm × 40mm
Board Pinout
( J1 ) Power Input Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VIN | Power Input (5.3V – 12V) |
| 2 | GND | Ground |
( J2 ) Power Output Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | VOUT | Regulated Output Voltage 5V |
| 2 | GND | Ground |
Datasheet
Download (PDF)Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.



