MIC94073YMT-TR Microchip

MIC94070/71/72/73 High Side Power Switches General Description Features The MIC94070-73 are high-side load switches designed 1.7V to 5.5V input voltage range for operation between 1.7V to 5.5V. The devices contain 1.2A continuous operating current a low on-resistance P-channel MOSFET that supports 3A pulse current 1.2A of continuous current. The MIC94071 and 120m R (typical) DSON MIC94073 feature an active load discharge circuit which insures capacitive loads retain no charge when the main Built-in level shift for control logic can be operated by switch is in an OFF state. 1.5V logic. MIC94070-71 feature rapid turn on while MIC94072-73 Low 2A quiescent current provide a slew rate controlled Soft-Start turn-on of 800s Soft-Start: MIC94072/73 (typical) to prevent in-rush current from glitching supply Micro-power shutdown <1A rails. Load discharge circuit: MIC94071, MIC94073 An active pull-down on the enable input keeps Space saving 1.2mm 1.6mm Thin MLF package MIC94070-73 in a default OFF state until the EN pin is pulled to a high level. Built-in level shift circuitry allows low voltage logic signals to switch higher supply Applications voltages, or vice versa high level logic signals can Load switch in portable applications: control low level voltages. - Cellular phones MIC94070-73s operating voltage range makes them - PDAs suitable for 1-cell Lithium ion and 2- to 3-cell NiMH/NiCad/Alkaline powered systems, as well as all 5V - MP3 players applications. Their low operating current of 2A and low - Digital Cameras shutdown current of <1A maximize battery life. - Portable instrumentation Data sheets and support documentation can be found on Battery switch-over circuits Micrels web site at: www.micrel.com. Level translator Typical Application MIC94070, 72 MIC94071, 73 Load Switch Application Load Switch with Capacitive Load Discharge MLF and MicroLeadFrame are registered trademarks of Amkor Technologies, Inc. Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel, Inc. MIC94070/71/72/73 Ordering Information (1) Part Number Part Marking Fast Soft- Load Package Turn On Start Discharge Standard Pb-Free Standard Pb-Free MIC94070YC6 70P SC-70-6 71P SC-70-6 MIC94071YC6 72P SC-70-6 MIC94072YC6 73P SC-70-6 MIC94073YC6 P70 MIC94070YMT 1.2mm x 1.6mm Thin MLF P71 MIC94071YMT 1.2mm x 1.6mm Thin MLF P72 MIC94072YMT 1.2mm x 1.6mm Thin MLF P73 MIC94073YMT 1.2mm x 1.6mm Thin MLF Notes 1. Under-bar symbol on SC-70 Pb-free packages may not be to scale. Pin Configuration SC-70-6 (C6) 1.2x1.6 mm Thin MLF (MT) Pin Description Pin Number Pin Name Pin Function SC-70 MLF 1 1 V Drain of P-channel MOSFET. OUT 2,5 2 GND Ground and the backside pad (MLF only) should both be connected to electrical ground. 4 3 V Source of P-channel MOSFET. IN Enable (Input): Active-high CMOS compatible control input for switch A. Do not leave 3 4 EN floating. No Internal Connection. A signal or voltage applied to this pin will have no effect on device 6 -- NIC operation. September 2007 2 M9999-090507