L4923

® L4923 5V–1A VERY LOW DROP REGULATOR WITH RESET AND INHIBIT . . . . . . . . . VERY LOW DROP (max. 0.9V at 1A) OVER FULL OPERATING TEMPERATURE RANGE (– 40 / + 125 °C) LOW QUIESCENT CURRENT (max 70 mA at 1 A) OVER FULL T RANGE PRECISEOUTPUT VOLTAGE(5V ± 4%) OVER FULL T RANGE POWER ON-OFF INFORMATION WITH SETTABLE DELAY INHIBIT FOR REMOTE ON-OFF COMMAND (active high) LOAD STANDBY CURRENT LOAD DUMP AND REVERSE BATTERY PROTECTION SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN Heptawatt ORDERING NUMBER : L4923 The device is internally protected against load dumps transient of + 60 V, input overvoltage, reverse polarity, overheating and output short circuit : thanks to these featuresthe L4923is very suited for the automotive and industrial applications. The reset function is very useful for power off and power on information when supplying a microprocessor. The inhibit function reduces drastically the consumptionwhen no load current is required: typically the standby current value is 300 µA. DESCRIPTION The L4923is a high currentmonolithic voltage regulator with very low voltage drop (0.70 V max at 1 A, TJ = 25 °C). BLOCK DIAGRAM June 2000 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/6 L4923 ABSOLUTE MAXIMUM RATINGS Symbol Vi Vr VD TJ Top Tstg DC Input Voltage DC Reverse Voltage Positive Load Dump Protection (t = 300ms) Junction Temperature range Operating Temperature Range Storage Tem...