NCP457FCT2G

Overview

The NCP457FCT2G is a single-channel, low-side power distribution switch manufactured by onsemi. It integrates an N-channel MOSFET capable of handling a continuous output current of 2A with a typical on-resistance of 120 milliohms. The device operates within a load voltage range of 0.75V to 5.5V and features a non-inverting input interface. Packaged in a compact 6-WLCSP (1.25x0.85mm) format, it supports surface-mount installation and functions across an ambient temperature range of -40°C to 85°C.

Feature Summary

• Integrates a low-side N-channel MOSFET for efficient power switching
• Features controlled slew rate to minimize inrush current during turn-on
• Includes built-in thermal protection and overcurrent limiting mechanisms
• Provides load discharge capability to rapidly remove energy from the load

Applications

• Portable consumer electronics power management
• Embedded systems peripheral power control
• Battery-powered device load switching
• General-purpose low-voltage power distribution

Procurement Notes

Verify the specific suffix 'FCT2G' against the manufacturer's latest datasheet to confirm package dimensions and tape-and-reel specifications. Ensure that the operating voltage requirements align with the 0.75V to 5.5V range documented for this component. Cross-reference the RoHS compliance status using official environmental declarations before finalizing procurement orders.

Selection Notes

Select this component when a compact, low-side switch is required for loads up to 2A. The 120 milliohm on-resistance offers a balance between conduction loss and cost. Consider the 6-WLCSP footprint for space-constrained designs. Verify that the non-inverting logic interface matches the system control signals and that the thermal performance meets the application's dissipation needs.

Part Context

This part belongs to the NCP45x series of load switches designed for portable applications. It shares functional similarities with other members like the NCP456 and NCP457 variants but differs in current rating and package size. The NCP457FCT2G specifically targets applications requiring a small form factor with moderate current capabilities, distinguishing it from higher-current or high-side alternatives in the same product family.

Replacement Considerations

Direct substitutes include the NCP456FCT2G for lower current requirements or the NCP457FCCT2G if reel packaging is preferred. Verify pinout compatibility and electrical parameters such as on-resistance and current limits before swapping components. Ensure that any alternative maintains the same WLCSP footprint and thermal characteristics.