NCP163AFCT290T2G

Product Overview

The NCP163AFCT290T2G from onsemi is a positive, fixed-output linear voltage regulator in a 4-WLCSP surface-mount package. It provides a 2.9V output from a maximum input voltage of 5.5V and delivers 250mA output current. The device includes an enable control and protection features such as over-current, over-temperature, and soft-start. Its 20µA quiescent current and PSRR of 91dB to 60dB from 100Hz to 100kHz are relevant to compact power-supply designs that require a fixed 2.9V rail.

Key Features

• Positive fixed-output regulator with one output set to 2.9V
• Supports a maximum input voltage of 5.5V and provides 250mA output current
• Includes enable control for output state management
• Integrates over-current, over-temperature, and soft-start protection features
• Quiescent current of 20µA and PSRR of 91dB to 60dB from 100Hz to 100kHz
• Housed in a 4-WLCSP (0.64 x 0.64) surface-mount package

Applications

• Portable electronic assemblies that need a fixed 2.9V output at 250mA for digital or sensor loads
• Embedded systems using an enable control to manage a 2.9V power domain during operation or standby
• Compact PCB designs where a 4-WLCSP regulator provides local linear regulation for noise-sensitive loads within the specified temperature range

Design & Procurement Notes

When selecting this regulator, verify that the system input voltage does not exceed 5.5V and that the load requires a fixed 2.9V output at no more than 250mA. The enable control should be considered in power-sequencing or state-control designs, while over-current, over-temperature, and soft-start features support controlled startup and fault conditions. The 4-WLCSP (0.64 x 0.64) surface-mount package requires layout and soldering suitable for WLCSP assemblies. The -40°C to 125°C ambient operating range and 20µA quiescent current should be matched to thermal and power-budget requirements.