TPS2226A Datasheet | Texas Instruments

FEATURES - 234 Provides S-CARD and M-CARD Power Management for Cable CARD™ Applications - Single-Slot Switch: TPS2220A Dual-Slot Switches: TPS2223A, TPS2224A, TPS2226A - Fast Current Limit Response Time - Fully Integrated VCC and VPP Switching for 3.3 V, 5 V, and 12 V (no 12 V on TPS2223A) - Meets Current PC Card™ Standards - Vpp Output Selection Independent of VCC - 12-V and 5-V Supplies Can Be Disabled - TTL-Logic patible Inputs - Short-Circuit and Thermal Protection - 24-Pin HTSSOP, 24- or 30-Pin SSOP - 140-µA (Typical) Quiescent Current from 3.3-V Input - Break-Before-Make Switching - Power-On Reset - - 40°C to 85°C Operating Ambient Temperature Range APPLICATIONS - Notebook and Desktop puters - Bar Code Scanners - Digital Cameras - Set-Top Boxes - PDAs TPS2223A, TPS2224A DB OR PWP PACKAGE (TOP VIEW) 5V 5V DATA CLOCK LATCH NC 12V† AVPP AVCC AVCC GND RESET 1 2 3 4 5 6 7 8 9 10 11 12 24 5V 23 NC 22 NC 21 SHDN 20 12V† 19 BVPP 18 BVCC 17 BVCC 16 NC 15 OC 14 3.3V 13 3.3V - No internal connection † Pin 7 and 20 are NC for TPS2223A. DESCRIPTION The TPS2223A, TPS2224A, and TPS2226A Card Bus™ power-interface switches provide an integrated power-management solution for two PC Card sockets. The TPS2220A is a single-slot option for this family of devices. These devices allow the controlled distribution of 3.3 V, 5 V, and 12 V to each card slot. The current-limiting and thermal-protection features eliminate the need for fuses. Current-limit reporting helps the user isolate a system fault. The switch r DS(on) and current-limit values have been set for the peak and average current requirements stated in the PC Card specification, and optimized for cost. A faster maximum current limit response time is the only difference between the TPS2223A, TPS2224A, and TPS2226A and the TPS2223, TPS2224, and TPS2226. Like the TPS2214 and TPS2214A and the TPS2216 and TPS2216A, this family of devices supports independent VPP/VCC switching; however, the standby and interface-mode pins...