MIC94067YML-TR Microchip

MIC94066-69 Dual High Side Power Switches General Description Features The MIC94066-69 are dual high-side load switches 1.7V to 5.5V input voltage range designed for operation between 1.7V to 5.5V. The 2A continuous operating current devices contain a pair of low on-resistance, 85m (typ) R ON 115m (max) P-channel MOSFETs that support over Built-in level shift for control logic can be 2A of continuous current. The MIC94067 and operated by 1.5V logic. MIC94069 feature an active load discharge circuit which insures capacitive loads retain no charge Low 2A quiescent current when the main switch is in an OFF state. Soft-Start: MIC94068-69 An active pull-down on the enable input keeps Micro-power shutdown <1A MIC94066-69 in a default OFF state until the EN pin Load discharge circuit: MIC94067, MIC94069 is pulled to a high level. The built-in level shift circuitry allows for a logic signal that may be different Space saving 2mm x 2mm MLF from the supply voltage to switch the high-side P- Applications channel MOSFET on or off. Load switch in portable applications: MIC94066-67 feature rapid turn on while MIC94068- 69 provide a slew rate controlled Soft-Start turn-on - Cellular phones of 800s (typical) to prevent in-rush current from - PDAs glitching supply rails. - MP3 players MIC94066-69s voltage range makes them suitable - Digital Cameras for 1-cell Lithium ion and 2- to 3-cell - Portable instrumentation NiMH/NiCad/Alkaline powered systems, as well as all 5V applications. Their low operating current of Battery switch-over circuits 2A and low shutdown current of <1A maximize Level translators battery life. Data sheets and support documentation can be found on Micrels web site at www.micrel.com. Typical Application MIC94067, 69 MIC94066, 68 Load Switch with Capacitive Load Discharge Load Switch Application MLF and MicroLead Frame is a registered trademark of Amkor Technologies Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 Micrel MIC94066-69 Ordering Information Part Number Part Soft-Start Load Discharge Pb-Free Package Marking* MIC94066YML P66 MIC94067YML P67 2x2 mm MLF MIC94068YML P68 MIC94069YML P69 * Note: Over bar symbol may not be to scale Pin Configuration Top View 2x2 mm MLF (code) Pin Description Pin Number Pin Name Pin Function 1 V A Source of P-channel MOSFET. IN 2 ENA Enable (Input): Active-high CMOS compatible control input for switch A. Do not leave floating. 3 V B Source of P-channel MOSFET. IN 4 ENB Enable (Input): Active-high CMOS compatible control input for switch A. Do not leave floating. 5 V B Drain of P-channel MOSFET. OUT 6 GND Ground. Both ground pins must be grounded. 7 V A Drain of P-channel MOSFET. OUT 8 GND Ground. Both ground pins must be grounded. M9999-082406 August 2006 2