AIC2951

AIC2951/2951D Low Dropout Linear Regulator n FEATURES l n DESCRIPTION The AIC2951/ 2951D series is the enhanced CMOS version of the LP2951. The superior characteristics of the AIC2951/ 2951D series include zero base current loss, very low dropout voltage, and 1% accuracy output voltage. Typical ground current remains approximately 55µA, from no load to maximum loading conditions. Dropout voltage at 100mA output current is significantly lower than its bipolar counterpart: 130mV for the AIC2951-50/2951D-50, 180mV for the AIC295133/ 2951D-33, and 200mV for the AIC2951-30/ 2951D-30. Output current limiting and thermal ® Low Dropout Voltage of 130mV at 100mA Output Current (AIC2951/2951D-50). Guaranteed 150mA /300mA Output Current. Internal 1.3Ω P-MOSFET Draws no Base Current. Low Ground Current at 55µA. 1% Accuracy Output of 3V/3.3V/5V. Error Flag Warns of Output Dropout. 1µA Supply Current in Shutdown Mode. Output Programmable from 1.235V~11V. Fast Transient Response. Needs only 1µF for Stability. Current and Thermal Limiting. l l l l l l l l l l n APPLICATIONS l l l Voltage Regulator for Pentium CPUs. Wireless Communication System. Battery Powered Systems. limiting are built in to provide maximal protection to the AIC2951/2951D series from fault conditions. An error flag output, indicating when output voltage drops out of regulation, often due to the falling batteries on the input, can be used for a power-on reset. A logic-controlled shutdown input enables the regulator ...