Overview
The NX30P0121UKZ is an advanced 3A unidirectional power switch IC designed by NXP USA Inc. This device is optimized for high-speed and low-voltage operations, making it suitable for a variety of applications, including analog and digital signal switching. It features a compact WLCSP-12 package, measuring 1.65 x 1.25 x 0.525 mm, which is ideal for space-constrained designs.
The NX30P0121UKZ includes several protection circuits such as Undervoltage Lockout (UVLO), Overvoltage Lockout (OVLO) in VOUT, and over-temperature protection. It also has an adjustable OVLO threshold and built-in slew rate control for inrush current limiting. The device is enabled via an external EN pin and has a current sensing feature through the ISNS pin.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| VIN | Supply Voltage | 2.5 | - | 20 | V |
| VOUT | Output Voltage | 2.5 | - | 20 | V |
| IOUT | Continuous Switch Current | - | - | 3 | A |
| IOUT (Peak) | Peak Switch Current (130μs pulse, 5% duty cycle at 85°C) | - | - | 10 | A |
| Rds(on) | On Resistance | - | 54mΩ | - | mΩ |
| Tamb | Ambient Temperature | -40 | - | 85 | °C |
| Tj(max) | Maximum Junction Temperature | - | - | 125 | °C |
| Package | Package Type | - | - | WLCSP-12 (1.65x1.25mm) | - |
Key Features
- Wide supply voltage range from 2.5V to 20V
- Maximum continuous current of 3A and peak current of 10A (130μs pulse, 5% duty cycle at 85°C)
- Low ON resistance of 54mΩ (typical)
- Adjustable overvoltage protection threshold with an internal default of 14.5V
- Built-in slew rate control for inrush current limiting
- Current sensing through the ISNS pin
- Protection circuits including over-temperature protection, overvoltage protection, and undervoltage lockout
- ESD protection (HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 2 kV, CDM JESD22-C101E)
Applications
- Portable electronics: smartphones, tablets, laptops
- Consumer electronics: TVs, stereos, gaming consoles
- Semiconductor manufacturing equipment
- Aerospace and defense applications where high reliability and low power consumption are critical
- Typically used in single input switching mode charger applications to bridge wireless charger output to the switching mode charger, protecting the wireless charger from high voltages
Q & A
- Q: What is the maximum voltage rating of the NX30P0121UKZ?
A: The maximum voltage rating of the NX30P0121UKZ is 20V for both VIN and VOUT pins.
- Q: Can the NX30P0121UKZ handle high currents?
A: Yes, the NX30P0121UKZ can handle a continuous current of 3A and a peak current of 10A (130μs pulse, 5% duty cycle at 85°C).
- Q: What is the Rds(on) of the NX30P0121UKZ?
A: The Rds(on) of the NX30P0121UKZ is 54mΩ (typical).
- Q: What protection circuits does the NX30P0121UKZ include?
A: The NX30P0121UKZ includes over-temperature protection, overvoltage protection, undervoltage lockout, and ESD protection.
- Q: How is the NX30P0121UKZ enabled?
A: The NX30P0121UKZ is enabled via an external EN pin. When the EN pin is driven HIGH and VIN is valid, the device is enabled.
- Q: What is the purpose of the ISNS pin?
A: The ISNS pin provides a current source output proportional to the input current from VIN to VOUT when the device is enabled.
- Q: What is the operating temperature range of the NX30P0121UKZ?
A: The operating temperature range of the NX30P0121UKZ is from -40°C to +85°C.
- Q: What package type does the NX30P0121UKZ use?
A: The NX30P0121UKZ is offered in a WLCSP-12 package, measuring 1.65 x 1.25 x 0.525 mm.
- Q: Is the NX30P0121UKZ suitable for aerospace and defense applications?
A: Yes, the NX30P0121UKZ is suitable for aerospace and defense applications due to its high reliability and low power consumption features.
- Q: How does the NX30P0121UKZ protect against inrush current?
A: The NX30P0121UKZ has built-in slew rate control to limit inrush current.
