Overview
The NCP333, specifically the NCP333FCT2G, is a low RDS(on) MOSFET-controlled load switch designed by onsemi. This component is optimized for battery life and autonomy in portable devices. It features a PMOS structure that eliminates leakage currents by isolating connected ICs from the battery when not in use. The device includes an output discharge path to eliminate residual voltages on the output rail, enhancing overall efficiency and reliability.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Voltage Range | VIN | 1.2 | 5.5 | V | |
| Static Drain-Source On-State Resistance | RDS(on) | 45 | 55 | 74 | mΩ (at VIN = 3.3 V, IOUT = 200 mA, TA = 25°C) |
| Maximum DC Current | IOUT | 1.5 | A | ||
| Maximum Peak Current | Ipeak | 2 | A (1 ms pulse) | ||
| Enable Voltage | VEN | 0 | 5.5 | V | |
| Ambient Temperature Range | TA | -40 | 85 | °C | |
| Thermal Resistance Junction to Air | RθJA | 150 | °C/W | ||
| Package Type | WLCSP4 0.76 x 0.76 mm |
Key Features
- Operating voltage range from 1.2 V to 5.5 V
- Low RDS(on) PMOS FET (55 mΩ at 3.3 V)
- DC current up to 1.5 A
- Output auto-discharge path to eliminate residual voltages
- Active high enable (EN) pin
- Ultra-small 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 (HBM ±2.0 kV, 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 used to eliminate residual voltages on the output rail when the device is disabled.
- How does the soft start control function in the NCP333?
The soft start control limits voltage ringing when the part is enabled on a load.
- What type of package does the NCP333 come in?
The NCP333 comes in an ultra-small WLCSP4 package measuring 0.76 x 0.76 mm.
- Is the NCP333 compliant with RoHS standards?
- What is the thermal resistance junction to air for the WLCSP package?
The thermal resistance junction to air (RθJA) for the WLCSP package is 150°C/W.
- What is the maximum junction temperature for the NCP333?
The maximum junction temperature (TJ) for the NCP333 is -40°C to +125°C.
- Does the NCP333 have ESD protection?
- What capacitors are recommended for stability improvement?
0.1 μF capacitors are recommended for both the input (IN) and output (OUT) pins, placed as close as possible to the IC.
