MIC2563A Micrel MIC2563A Dual-Slot PCMCIA/CardBus Power Controller General Description Features The MIC2563A dual-slot PCMCIA (Personal Computer Single package controls two PC Card slots Memory Card International Association) and CardBus power High-efficiency, low-resistance switches require no controller handles all PC Card slot power supply pins, both 12V bias supply V and V . The MIC2563A switches between the three No external components required CC PP V voltages (0V, 3.3V and 5.0V) and the V voltages (OFF, Output current limit and overtemperature shutdown CC PP 0V, 3.3V, 5V or 12.0V) required by PC Cards. The MIC2563A Ultra-low power consumption switches voltages from the system power supply to V and Complete dual-slot PC Card/CardBus V and V CC CC PP V . Output voltage is selected by two digital inputs each and switch matrix in a single package PP output current ranges up to 1A for V and 250mA for V . Logic compatible with industry standard PC Card logic CC PP controllers The MIC2563A provides power management capability con- No voltage shoot-through or switching transients trolled by the PC Card logic controller. Voltage rise and fall Break-before-make switching times are well controlled. Medium current V and high PP Digital selection of V and V voltages CC PP current V output switches are self-biasing: no +12V sup- CC Over 1A V output current for each section CC ply is required for 3.3V or 5V output. Over 250mA V output current for each section PP Lead-free 28-pin SSOP package The MIC2563A is designed for efficient operation. In standby UL recognized, file 179633 (sleep) mode, the device draws very little quiescent current, typically 0.3 A. The device and PCMCIA port is protected by Applications current limiting and overtemperature shutdown. Full cross- Dual-slot PC card power supply pin voltage switch conduction lockout protects the system power supplies dur- CardBus slot power supply control ing switching operations. Data collection systems The MIC2563A is an improved version of the MIC2563, Machine control data input systems offering lower on-resistances and a V pull-down clamp in Wireless communications CC the OFF mode. It is available in a standard 28-pin SSOP, as Bar code data collection systems well as an environmentally friendly (lead-free) 28-pin SSOP. Instrumentation configuration/datalogging Docking stations (portable and desktop) All support documentation can be found on Micrels web Power supply management site at www.micrel.com. Power analog switching Typical Application 5V (opt) System Power 3.3V Supply 12V (opt) V IN V IN V IN CC3 V PP CC5 PP1 (opt) (opt) A EN0 PCMCIA V PP2 A EN1 Card Slot A A V V CC5 EN CC PCMCIA A V CC3 EN Card Slot Controller MIC2563 V PP1 B EN0 PCMCIA V PP2 PCMCIA Card Slot Card Slot B EN1 B V CC B V CC5 EN B V CC3 EN UL Recognized Component Micrel, Inc. 1849 Fortune Drive San Jose, CA 95131 USA tel + 1 (408) 944-0800 fax + 1 (408) 944-0970 MIC2563A Micrel Ordering Information Part Number Temperature Range Package Lead-Finish MIC2563A-0BSM 40C to +85C 28-pin SSOP Standard MIC2563A-1BSM 40C to +85C 28-pin SSOP Standard MIC2563A-0YSM 40C to +85C 28-pin SSOP Lead-free MIC2563A-1YSM 40C to +85C 28-pin SSOP Lead-free Note: See MIC2563A-0 and MIC2563A-1 Control Logic Table for a description of the differences between the logic options. Pin Configuration A VCC5 IN 1 28 A VCC OUT A VCC OUT 2 27 A VCC3 IN A VCC5 IN 3 26 A VCC OUT GND 4 25 NC A VCC5 EN 5 24 A VPP OUT A VCC3 EN 6 23 A VPP IN A EN0 7 22 B EN1 A EN1 8 21 B EN0 B VPP IN 9 20 B VCC3 EN B VPP OUT 10 19 B VCC5 EN NC 11 18 GND B VCC OUT 12 17 B VCC5 IN B VCC3 IN 13 16 B VCC OUT B VCC OUT 14 15 B VCC5 IN 28-Pin SSOP (SM) Connect all pins with the same name together for proper operation. MIC2563A-1 Redefined Pin Assignment Function Pin Number Slot A Slot B VPP VCC 721 VPP PGM 822 Some pin names for the MIC2563A-1 are different from the MIC2563A-0. This table shows the differences. All other pin names are identical to the MIC2563A-0 as shown in the Pin Configuration, above. M9999-110503 2 March 2004