CM3102 Datasheet | California Micro Devices

Features - 1-5ms Power Good (PG) control signal - Regulated 1.2V output - 150m A output current - Low quiescent operating current (90µA typical) .. - "Zero" disable mode current - Foldback current limiting protection - Thermal shutdown protection - Stable with low-ESR capacitors - SOT23-5 package - "MIC5258" pinout - Lead-free version available Product Description The CM3102 is a low quiescent current (90u A) regulator that delivers up to 150m A of load current at a fixed 1.2V output. In addition, the CM3102 features a Power Good output signal (PG) that goes open drain 1 to 5 ms after the output voltage has exceeded typically 93% of its nominal level. A dedicated control input (EN, Active High) has been included for power-up sequencing flexibility. When this input is taken low, the regulator is disabled. In this state, the supply current will drop to near zero. An internal discharge MOSFET resistance (500Ω) will force the output to ground whenever the device has been shutdown. The CM3102 is fully protected, offering both overload current limiting and high temperature thermal shutdown. Available in a tiny SOT23 package, the device is ideal for space critical applications. The CM3102 is available with optional lead-free finishing. Applications - - - - - Pentium 4 Motherboards Processor Power-up Sequencing Desktop, Notebook and Palmtop puters PC Cards Peripheral Adapter Cards Pentium 4 Motherboard Application Circuit CM3102-12Sx 10Ω Simplified Electrical Schematic 1.2V VCC3 IN EN GND .1µF- OUT PG VCCVID 1.2V/150m A .1µF + VREF 1.2V - Input capacitor optional. - Typical Application Circuit 47kΩ + CM3102-12Sx...