MIC94062/94063

The MIC94062 and MIC94063 are soft start, high-side load switches housed in the SC-70-6 package. The devices contain a low on-resistance, 100m(max) P-channel MOSFET that is driven by built-in level-shift and slew-rate control circuitry. The low on-resistance supports over 2A of continuous current. The MIC94063 features an active load circuit that discharges capacitive loads through a 200 switch when the IC is set to the OFF state.

Pull-down circuitry keeps the MIC94062/3 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. Integrating the level-shift and slew-rate control circuitry saves valuable board space and reduces component placement cost compared to discrete solutions. The 500µs turn-on slew rate control prevents in-rush current from causing glitches on the supply rail.

Battery life is saved in portable applications with the IC's low quiescent current of 2µA and low shutdown current of <1µA. Their 1.8V to 5.5V operating voltage range makes the MIC94062/63 suitable for 1-cell Lithium ion, 2- to 3-cell NiMH/ NiCad/Alkaline, as well as other sub-5V input applications.

The MIC94062 and MIC94063 are housed in the Teeny™ SC-70-6 package and offered in both standard and Pb-free lead finishes.