DESCRIPTION
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 amplifier,the driver and the power PNP. This stage uses an Isolated CollectorVertical PNP transistor which allowsto obtain very low dropout voltage (typ. 450mV) and low quiescent current (IQ = 20mA typically at Io = 1A). Thanks to...
STMicroelectronics
