Overview
The NCP333, produced by onsemi, is a high-side P-channel MOSFET power distribution switch designed to optimize battery life and enhance portable device autonomy. This component allows for the isolation of ICs connected to the battery, thereby reducing energy consumption. It operates within a wide input voltage range of 1.2 V to 5.5 V and is packaged in a compact WLCSP4 (0.76 x 0.76 mm) format, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Power Supply | VIN | 1.2 | 5.5 | V | |
| Enable Voltage | VEN | 0 | 5.5 | V | |
| Ambient Temperature Range | TA | -40 | 25 | 85 | °C |
| Maximum DC Current | IOUT | 1.5 | A | ||
| Maximum Peak Current | Ipeak | 2 | A | ||
| Static Drain-Source On-State Resistance | RDSON | 45 | 55 | 74 | mΩ |
| Output Discharge Path Resistance | Rdis | 70 | 110 | Ω | |
| Output Rise Time | TR | 95 | μs | ||
| Output Fall Time | TF | 11 | μs | ||
| Enable Time | Ten | 100 | μs | ||
| High-Level Input Voltage | VIH | 0.9 | V | ||
| Low-Level Input Voltage | VIL | 0.5 | V | ||
| Quiescent Current | Iq | 1 | μA |
Key Features
- Operating voltage range: 1.2 V to 5.5 V
- Low RDS(on) of 55 mΩ at 3.3 V
- DC current up to 1.5 A
- Output auto-discharge path to eliminate residual voltages
- Active high enable pin (EN)
- Compact WLCSP4 package (0.76 x 0.76 mm)
- Pb-free, halogen-free/BFR-free, and RoHS compliant
- Soft start control to limit voltage ringing
- ESD protection: Human Body Model (HBM) ±2.0 kV, Machine Model (MM) ±200 V
Applications
- Mobile Phones
- Tablets
- Digital Cameras
- GPS Devices
- Portable Devices
Q & A
- What is the operating voltage range of the NCP333?
The NCP333 operates within a voltage range of 1.2 V to 5.5 V.
- What is the maximum DC current the NCP333 can handle?
The NCP333 can handle a maximum DC current of 1.5 A.
- What is the purpose of the auto-discharge path in the NCP333?
The auto-discharge path is designed to eliminate residual voltages on the output rail when the device is disabled.
- How does the enable pin (EN) function in the NCP333?
The enable pin (EN) is an active high input, meaning the device is turned on when the EN pin is set to a high logic level.
- What is the thermal resistance (RJA) of the WLCSP4 package?
The thermal resistance (RJA) of the WLCSP4 package is 150°C/W, dependent on PCB heat dissipation and thermal vias.
- Is the NCP333 compliant with RoHS standards?
Yes, the NCP333 is Pb-free, halogen-free/BFR-free, and RoHS compliant.
- What is the typical quiescent current of the NCP333?
The typical quiescent current of the NCP333 is 1 μA when the device is enabled or disabled with no load.
- What type of ESD protection does the NCP333 have?
The NCP333 has ESD protection according to Human Body Model (HBM) ±2.0 kV and Machine Model (MM) ±200 V.
- What are the recommended decoupling capacitors for the NCP333?
0.1 μF ceramic capacitors are recommended for both the input (IN) and output (OUT) pins, placed as close as possible to the IC.
- How does the soft start control function in the NCP333?
The soft start control limits voltage ringing when the device is enabled, helping to stabilize the output voltage.
