MIC2559 Datasheet | Micrel Semiconductor

Micrel PCMCIA Dual Card Socket VPP Switching Matrix Not Remended for New Designs General Description The MIC2559 Dual VPP Matrix switches the four voltages required by PCMCIA (Personal puter Memory Card International Association) card VPP1 and VPP2 Pins. The MIC2559 provides selectable 0V, 3.3V, 5.0V, or 12.0V (± 5%) from the system power supply to VPP1 and VPP2. Output voltage is selected by two digital inputs per VPP pin. Output current ranges up to 120m A. Four output states, VPP, VCC, high impedance, and active logic low are available, and VPP1 .. is independent of VPP2. An auxiliary control input determines whether the high impedance (open) state or low logic state is asserted. In standby mode or full operation, the device draws very little quiescent current, typically less than 1µA. The MIC2559 is available in a 14-pin SOIC. Features - - - - - - - - - - plete PCMCIA VPP Switch Matrix in a Single IC Dual Matrix allows independent VPP1 and VPP2 Digital Selection of 0V, VCC, VPP, or High Imped- ance Output No VPPOUT Overshoot or Switching Transients Break-Before-Make Switching Ultra Low Power Consumption 120m A V (12V) Output Current Optional Active Source Clamp for Zero Volt Condition 3.3V or 5V Supply Operation 14-Pin SOIC Package Ordering Information Applications - - PCMCIA VPP Pin Voltage Switch Power Supply Management Part Number MIC2559BM MIC2559BM T&R Temperature Range - 40°C to +85°C - 40°C to +85°C Package 14-pin SOIC 14-SO Tape & Reel- - 2,500 Parts per reel. Typical Application VPP IN VCC +12V +3.3V or +5V VDD +5V Pin Configuration VPP OUT1 NC +VCC1 VPP IN +VCC2 GND VPP OUT2 14 2 13 0.1µF VPP OUT 1 2 14 13 3 12 MIC2559 4 11 5 6 7 10 9 8 0.1µF 1µF 1µF 3 12 MIC2559 4 11 5 6 7 10 9 8 Hi-Z/ Low 1 Control EN01 EN11 Hi-Z/ Low 2 Control EN02...