General Description

The MIC94030 and MIC94031 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 MIC94030/1 exhibits an on-resistance of typically 0.75Ωat 4.5V gate-to-source voltage. The MIC94030/1 also operates withonly 2.7V gate-to-source voltage.

The MIC94030 is the basic 4-lead P-channel MOSFET. The MIC94031 is a variation that includes an internal gate pull-up resistor that can reduce the system parts count in many applications.

Features

• 13.5V minimum drain-to-source breakdown

• 0.75Ωtypical on-resistance

– at 4.5V gate-to-source voltage

• 0.45Ωtypical on-resistance

– at 10V gate-to-source voltage

• Operates with 2.7V gate-to-source voltage

• Separate substrate connection for added control

• Industry’s smallest surface mount package

Applications

• Distributed power management

• PCMCIA card power management

• Battery-powered computers, peripherals

• Hand-held bar-code scanners

• Portable communications equipment