L4922

® L4922 VERY LOW DROP REGULATOR WITH RESET . . . . . . . VERY LOW DROP (max. 0.9 V at 1 A) OVER FULL OPERATING TEMPERATURE RANGE (– 40 / + 125°C) LOW QUIESCENT CURRENT (max 70 mA at 1 A) OVER FULL T RANGE PRECISE OUTPUT VOLTAGE (5 V ± 4 %) OVER FULL T RANGE POWER ON-OFF INFORMATION WITH SETTABLE DELAY REVERSE BATTERY PROTECTION SHORT CIRCUIT PROTECTION THERMAL SHUTDOWN Pen tawatt O RDERING NUMBER : L4922 DESCRIPTION The L4922is a high currentmonolithic voltage regulator with very low voltage drop (0.70 V max at 1 A, TJ = 25 °C). The device is internally protected against load dumps transient of + 60V, reverse polarity, over- heatingand outputshort circuit : thanks toted for the automotive and industrial applications. 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 L4922 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 Temperature Range Parameter Value 35 –18 60 –40 to 150 –40 to 125 –55 to 150 Unit V V V °C °C °C N ote: T he circuit is ESD protected according to MIL-STD -883C THERMAL DATA Symbol Rth j-case Parameter Thermal Resistance Junction-case Max. Value 3.5 Unit °C/W PIN CONNECTION (Top view) FUNCTIONAL DESCRIPTION The operating principle of the voltage regulator is basedon thereference,the error am...