MIC2559

MIC2559 Micrel MIC2559 PCMCIA Dual Card Socket VPP Switching Matrix Not Recommended for New Designs General Description The MIC2559 Dual VPP Matrix switches the four voltages required by PCMCIA (Personal Computer 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 120mA. Four output states, VPP, VCC, high impedance, and active logic low are available, and VPP1 www.DataSheet4U.com 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 Complete 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 120mA V PP (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 SO...