MAX1602 Datasheet | Maxim Integrated

Description The MAX1602 DC power-switching IC contains a network of low-resistance MOSFET switches that deliver selectable VCC and VPP voltages to a single Card Bus or PC Card host socket. Key features include lowresistance switches, small packaging, soft-switching action, and pliance with PCMCIA specifications for 3V/5V switching. 3.3V-only power switching for fast, 32-bit Card Bus applications is supported in two ways: low-resistance 3.3V switches allow high 3.3V load currents (up to 1A); and pletely independent internal charge pumps let the 3.3V switch operate normally, even if the +5V and +12V supplies are disconnected or turned off to conserve power. The internal charge pumps are regulating types that draw reduced input current when the VCC switches are static. Power consumption is automatically reduced to 11µA max when the outputs are high-Z or GND. Other key features include guaranteed specifications for output current limit level, and guaranteed specifications for output rise/fall times (in pliance with PCMCIA specifications). Reliability is enhanced by thermal-overload protection, accurate current limiting, an overcurrent-fault flag output, and undervoltage lockouts. The CMOS/TTL-logic interface is flexible, and can tolerate logic input levels in excess of the positive supply rail. The MAX1602 fits a plete Card Bus/PCMCIA switch into a space-saving, 16-pin QSOP package. ____________________________Features o Supports a Single PC Card/Card Bus Socket o 1A, 0.25Ω Max 3.3V VCC Switch 1A, 0.25Ω Max 5V VCC Switch o Soft Switching for Low Inrush Surge Current o Overcurrent Protection o Overcurrent/Thermal-Fault Flag Output o Thermal Shutdown at Tj = +150°C o Independent Internal Charge Pumps o Break-Before-Make Switching Action o 11µA Max Standby Supply Current o 5V and 12V Not Required for Low-RDS(ON) 3.3V Switching o plies with PCMCIA 3V/5V Switching Specifications o Super-Small 16-Pin QSOP Package o Code patible with: Cirrus CL-PD67XX Family Databook DB86184...