PC Card Power Interface Switch 30-Pin SSOP

The TPS2228 and TPS2221 PC card power interface switches provide an integrated power management solution for both dual and single PC card sockets. The TPS2228 is a dual-slot power interface switch for serial PCMCIA controllers. The TPS2221 is a single-slot power interface switch for parallel PCMCIA controllers. These power interface switches support the distribution of 3.3 V, 5 V and 1.8 V to the PC card slot while providing current-limiting protection with overcurrent reporting.

Provides S-CARD abd M-CARD Power Management for CableCARD™ Applications

Fully Integrated V_CC and V_PP/V_CORE Switching

Meets PC Card Standards

V_PP/V_CORE Output Programmed Independent of V_CC

TTL-Logic Compatible Inputs

Short Circuit and Thermal Protection

20-Pin HTSSOP or 30-Pin SSOP (Dual With Serial Interface) Package

14-pin HTSSOP Package (Single With Parallel Interface)

95 µA Typ Quiescent Current on 3.3 VIN Input (Dual With Serial Interface)

64 µA Typ Quiescent Current on 3.3 VIN Input (Single With Parallel Interface)

Break-Before-Make Switching

Power On Reset

–40°C to 85°C Ambient Operating Temperature Range

APPLICATIONS

• Notebook/Desktop Computers
• Personal Digital Assistants (PDAs)
• Digital Cameras
• Bar-code Scanners