MIC94068

MIC94066/7/8/9 Dual High-Side Power Switches Features 1.7V to 5.5V Input Voltage Range 2A Continuous Operating Current 85 mΩ (typ.) ON-Resistance Built-In Level Shift for Control Logic; Can be Operated by 1.5V Logic Low 2 µA Quiescent Current Soft-Start: MIC94068 and MIC94069 Micropower Shutdown <1 µA Load Discharge Circuit: MIC94067 and MIC94069 Space Saving 2 mm x 2 mm 8-Lead VDFN Applications Load Switch in Portable Applications: - Cellular Phones - PDAs - MP3 Players - Digital Cameras - Portable Instruments Battery Switch-Over Circuits Level Translators General Description The MIC94066, MIC94067, MIC94068, and MIC94069 are dual high-side load switches designed for operation between 1.7V to 5.5V. The devices contain a pair of low ON-resistance, 115 mΩ (max.) P-channel MOSFETs that support over 2A of continuous current. The MIC94067 and MIC94069 feature an active load discharge circuit which ensures capacitive loads retain no charge when the main switch is in an OFF state. An active pull-down on the enable input keeps MIC94066/7/8/9 in a default OFF state until the EN pin is pulled to a high level. The built-in level shift circuitry allows for a logic signal that may be different from the supply voltage to switch the high-side P-channel MOSFET on or off. MIC94066 and MIC94067 feature rapid turn-on, while MIC94068 and MIC94069 provide a slew rate controlled soft-start turn-on of 800 µs (typical) to prevent in-rush current from glitching supply rails...