MICROCHIP MIC94051YM4-TR

MIC94050 and MIC94051 are four-terminal silicon-gate P-channel MOSFETs offering low on-resistance in an extremely compact package. The MIC94050/1 is designed for space-constrained, high-performance switching applications, with a typical on-resistance of 0.125Ω at a gate-to-source voltage of 4.5V. The devices are also capable of operating at a gate-to-source voltage of 1.8V. The MIC94050 is a basic four-pin P-channel MOSFET. The MIC94051 is a variant with an integrated gate pull-up resistor, which reduces system component count in many applications. The four-terminal SOT-143 package allows the substrate connection to be separated from the source connection. This four-terminal configuration improves θJA (enhanced thermal dissipation) and enables reverse-blocking switch applications. The small size, low threshold voltage, and low RDS(on) make the MIC94050/1 ideal for PCMCIA, USB, backup battery power, and distributed power management applications.

• Typical on-resistance of 0.125Ω at V_GS = 4.5V
• Operable at V_GS = 1.8V
• Separate substrate connection for reverse blocking

• Distributed power management
• PCMCIA card power management
• USB ports
• Battery-powered computers and peripherals
• Handheld barcode scanners
• Portable communications equipment
• Reverse-blocking battery management