Overview
The NCP330, produced by onsemi, is a low RDS(on) N-channel MOSFET controlled load switch designed for mobile and other power-sensitive applications. It features a soft-start sequence of 2 ms, which helps in reducing inrush current and preventing voltage droops during startup. The device is automatically enabled when a power supply is connected to the Vin pin (active high) and remains off if no Vin is present due to an internal pull-down mechanism.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage Range | 1.8 V to 5.5 V |
| RDS(on) | 30 mΩ |
| Maximum DC Current | Up to 3 A |
| Soft-Start Time | 2 ms |
| Enable Pin | Active High with Integrated Pull-Down |
| Reverse Voltage Protection | Yes |
Key Features
- Low RDS(on) of 30 mΩ for minimal power loss.
- Soft-start sequence of 2 ms to manage inrush current.
- Automatic enable with active high Vin pin and internal pull-down.
- Reverse voltage protection to safeguard the device.
- Operating voltage range from 1.8 V to 5.5 V, suitable for various mobile applications.
Applications
- Mobile phones and other handheld devices.
- Load management in battery-powered systems.
- System power supply and battery charging circuits.
Q & A
- What is the operating voltage range of the NCP330?
The operating voltage range of the NCP330 is from 1.8 V to 5.5 V.
- What is the maximum DC current the NCP330 can handle?
The NCP330 can handle up to 3 A of DC current.
- What is the soft-start time of the NCP330?
The soft-start time of the NCP330 is 2 ms.
- Does the NCP330 have reverse voltage protection?
Yes, the NCP330 has built-in reverse voltage protection.
- How is the enable pin of the NCP330 configured?
The enable pin of the NCP330 is active high with an integrated pull-down mechanism.
- What is the typical RDS(on) of the NCP330?
The typical RDS(on) of the NCP330 is 30 mΩ.
- In which applications is the NCP330 commonly used?
The NCP330 is commonly used in mobile phones, load management, and system power supply and battery charging circuits.
- Is the NCP330 suitable for high-current applications?
Yes, the NCP330 is suitable for high-current applications up to 3 A.
- Does the NCP330 require external components for soft-start?
No, the NCP330 has a built-in soft-start sequence.
- How does the NCP330 manage inrush current during startup?
The NCP330 manages inrush current through its built-in 2 ms soft-start sequence.
