MIC94051 Series

4-Terminal P-Channel MOSFET High-Side Switch

Catalog

4-Terminal P-Channel MOSFET High-Side Switch

Part	FET Type	Vgs (Max)	Technology	Supplier Device Package	Vgs(th) (Max) @ Id	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Power Dissipation (Max)	Input Capacitance (Ciss) (Max) @ Vds	Current - Continuous Drain (Id) @ 25°C	Mounting Type	Rds On (Max) @ Id, Vgs [Max]	Drive Voltage (Max Rds On, Min Rds On)	Drain to Source Voltage (Vdss)
Microchip Technology MIC94051YM4-TR	P-Channel	6 V	MOSFET (Metal Oxide)	SOT-143	1.2 V	TO-253-4 TO-253AA	150 °C	-40 °C	568 mW	600 pF	1.8 A	Surface Mount	160 mOhm	1.8 V 4.5 V	6 V

Catalog

4-Terminal P-Channel MOSFET High-Side Switch

Key Features

• + 0.125O typical on-resistance at 4.5V gate-to-source voltage

• + Operates with 1.8V gate-to-source voltage

• + Separate substrate connection allows reverse-blocking

Description

The MIC94050 and MIC94051 are 4-terminal silicon gate P-channel MOSFETs that provide low on-resistance in a very small package. Designed for high-side switch applications where space is critical, the MIC94050/1 exhibits an on-resistance of typically 0.125 Ohm at 4.5V gate-to-source voltage. The MIC94050/1 also operates with only 1.8V gate-to-source voltage. The MIC94050 is the basic 4-lead P-channel MOSFET. The MIC94051 is a variation that includes an internal gate pull-up resistor that can reduce the system parts count in many applications. The 4-terminal SOT-143 package permits a substrate connection separate from the source connection. This 4-terminal configuration improves the θJA (improved heat dissipation) and makes reverse-blocking switch applications practical. The small size, low threshold, and low RDS(on) make the MIC94050/1 the ideal choice for PCMCIA, USB, back-up battery-power, and distributed power management applications.