Description
The G570 PC Card power-interface switch provides an integrated power-management solution for two PC Cards. All of the discrete power MOSFETs, a logic section, current limiting, and thermal protection for PC Card control are combined on a single integrated circuit (IC). The circuit allows the distribution of 3.3V, 5V, and/or 12V card power by means of the Serial interface. The current-limiting feature eliminates the need for fuses, which reduces component count and improves reliability.

Features
■ Fully Integrated VCC and Vpp Switching for Dual Slot PC CardTM Interface
■ 3-Lead Serial Interface Compatible With CardBusTM Controllers
■ 3.3V Low Voltage Mode
■ Meets PC Card Standards
■ RESET for System Initialization of PC Cards
■ 12V Supply Can Be Disabled Except During 12V Flash Programming
■ Short Circuit and Thermal Protection
■ 28 Pin and 30 Pin SSOP
■ Compatible With 3.3V, 5V and 12V PC Cards
■ Low RDS(on) (225-mΩ 5V VCC Switch; 200 mΩ 3.3V VCC Switch)
■ Break-Before-Make Switching
■ Internal power-On Reset

Application
■ Notebook PC
■ Electronic Dictionary
■ Personal Digital Assistance
■ Digital still Camera