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FPF2108 is listed in the Power Distribution Switches, Load Drivers range at ChipApex. The manufacturer field lists Fairchild Semiconductor. Its product description is FPF2108 - INTELLIMAX ADVANCED LO. Review the specifications below when checking this part for your BOM.
The Fairchild Semiconductor FPF2108 is a load switch from the FPF2108-2110 series designed for systems requiring protection against large current conditions. It integrates a P-channel MOSFET with an on-resistance of 0.125Ω and supports input voltages between 1.8V and 5.5V. The device features a minimum current limit of 400mA, reverse current blocking, and thermal shutdown protection at 140°C. Control is managed via a logic input compatible with low-voltage signals.
Verify the specific suffix code to confirm package type and tape/reel specifications. Ensure the component matches the original Fairchild Semiconductor or onsemi manufacturing source. Confirm RoHS compliance status and operating temperature range requirements against your system design specifications before procurement.
Select this component for applications requiring a 400mA current limit and 0.125Ω on-resistance within a 1.8V to 5.5V range. Consider the SOT23-5 package for space-constrained designs. Evaluate if the fixed current limit meets your load protection needs compared to adjustable alternatives in the same series.
The FPF2108 belongs to the FPF21xx series of smart load switches by Fairchild Semiconductor (now onsemi). This family provides comprehensive protection including overcurrent, thermal, and reverse current blocking. It is part of a broader portfolio of power management solutions aimed at enhancing reliability in consumer and industrial electronic applications.
Check for equivalents like FPF2109 or FPF2110 if different current limits are required. Verify pin compatibility and electrical characteristics with other load switches from onsemi or alternative manufacturers offering similar 400mA limits and SOT23-5 packaging.
The device responds to hard shorts within 20ns.
The switch shuts off when the junction temperature exceeds 140°C and auto-restarts when it drops below 130°C.
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