MIC2566-0BTS datasheet(9/10 Pages) MICREL

Part #	MIC2566-0BTS

Description	Single-Slot PC Card/CardBus Power Controller

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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9 / 10 page

May 2003

9

MIC2566

Micrel

System

Power

Supply

PCMCIA

Card Slot

Controller

MIC2566

PCMCIA

Card Slot

5V

EN0

EN1

VPP1

VCC

VCC5IN

VCC3IN

VCC5_EN

VCC3_EN

VPP2

Figure 3. PC Card Slot Power Control Application Without an Available 3.3V V

CC

Note that V

CC3 IN and VCC5 IN are driven together. The MIC2566 is powered by the VCC3 IN line. In this configuration, VCC OUT will be 5V

when either V

CC3 or VCC5 is enabled from the logic table. Take advantage of the lower switch resistance of the VCC5 switch by using the

V

CC5_EN control as your main VCC switch.

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