PC card power management techniques
Tim Skovmand
Abstract
This chapter describes power switching for a computer PC card via the VCC supply using the LTC1165 inverting triple MOSFET driver. The VPP supply can be switched between four operating states; circuits are illustrated for two different approaches to solving the four state output problem.
Keywords
PC card
VCC supply switching
VPP supply switching
power management
LTC1165
Most portable computers have sockets built in to accept small PC cards for use as extended memories, data/fax modems, network interfaces, wireless communicators, etc. The Personal Computer Memory Card International Association (PCMCIA) has released specifications, 1.0 and 2.0, which outline the general ...
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