General Description

The MAX1601/MAX1604 DC power-switching ICs contain a network of low-resistance MOSFET switches that deliver selectable VCC and VPP voltages to two CardBus or PC Card host sockets. Key features include ultra-low-resistance switches, small packaging, softswitching action, and compliance with PCMCIA specifications for 3V/5V switching.

Features

♦ Supports Two CardBus Sockets
♦ 1A, 0.08Ω Max VY VCC Switch (MAX1601 only)
1A, 0.14Ω Max VX VCC Switch
♦ Soft Switching for Low Inrush Surge Current
♦ Overcurrent Protection
♦ Overcurrent/Thermal-Fault Flag Output
♦ Thermal Shutdown at Tj = +150°C
♦ Independent Internal Charge Pumps
♦ Break-Before-Make Switching Action
♦ 10µA Max Standby Supply Current
♦ 5V and 12V Not Required for Low-RDS(ON) 3.3V Switching
♦ Complies with PCMCIA 3V/5V Switching Specifications
♦ Super-Small, 28-Pin SSOP Package (0.2in. or 5mm wide)
♦ System Management Bus (SMBus) Serial Interface

Applications

Desktop Computers
Data Loggers
Notebook Computers
Digital Cameras
Docking Stations
Printers
Handy-Terminals
PCMCIA Read/Write Drives