NCP436FCT2G

Overview

The NCP436FCT2G is a single-pole single-throw (SPST) power switch IC from onsemi, designed for ultra-small load auto-discharge applications. It supports an input voltage range of 1.2 V to 5.5 V and delivers a continuous output current of 3 A. The device features a maximum on-resistance of 420 mOhms and operates within a temperature range of -40°C to +125°C. Packaged in a compact WLCSP-4 format, it integrates controlled switching capabilities with low power dissipation characteristics suitable for portable electronics.

Feature Summary

• Ultra-small footprint design utilizing WLCSP packaging for space-constrained layouts
• Integrated auto-discharge functionality to rapidly remove charge from downstream capacitors upon shutdown
• Controlled load switching capability for managing power distribution sequences

Applications

• Portable consumer electronics requiring efficient power management
• Battery-powered devices needing low quiescent current operation
• Systems requiring controlled power sequencing for peripheral components

Procurement Notes

Verify the specific suffix 'FCT2G' against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with your PCB layout regarding the WLCSP-4 footprint. Cross-reference RoHS compliance status directly with official documentation before finalizing procurement orders.

Selection Notes

Select this component when a 3 A current rating is required alongside minimal board space constraints. Compare against the NCP335 series if a 2 A rating suffices, as both share similar packaging. Evaluate thermal performance based on the 420 mOhm on-resistance and expected ambient temperatures within the -40°C to +125°C operational range.

Part Context

This part belongs to the NCP436 family of power switches from onsemi, categorized under Power Management ICs. It serves as a high-current alternative to lower-amperage variants like the NCP335, offering enhanced load handling while maintaining the same ultra-compact WLCSP form factor common across the series.

Replacement Considerations

The NCP335FCT2G is a documented substitute within the same product line, though it offers a reduced 2 A output current compared to the 3 A capacity of the NCP436FCT2G. Verify that the application can tolerate the lower current limit before substituting.