L4948

® L4948 QUAD VOLTAGE REGULATOR WITH INHIBIT AND RESET 4 OUTPUTS: 10V (300mA); 8V (400mA); 5V (600mA); 5V (100mA) ALL FOUR OUTPUTS ARE LOW DROP 5V (100mA) ST-BY OUTPUT VOLTAGE EARLY WARNING OUTPUT FOR SUPPLY UNDERVOLTAGE (LVW) THERMAL SHUTDOWN AND CURRENT LIMITATION (FOLDBACK) REVERSE BATTERY AND LOAD DUMP PROTECTION INHIBIT (ON/OFF) AND RESET FUNCTIONS DESCRIPTION The L4948 is a quad output low drop voltage regulator. All four outputs are low drop: 10V at 300mA (VO1), 8V at 400mA (VO2), 5V at 600mA (VO3) and a 5V st-by line at 100mA (VO4). The IC includes a monitoring circuit to warn if a low voltage or no voltage condition is occurring. VO1,2,3 are off during st-by mode. The STCAP pin allows the battery voltage to deBLOCK DIAGRAM MULTIPOWER BCD TECHNOLOGY Multiwatt 11 ORDERING NUMBER: L4948 cay slowly giving the µP time to store data. This IC is designed for supplying microcomputer controlled systems specially in automotive applications. June 2000 1/9 L4948 OPERATING CONDITION Symbol VS IL Supply Voltage Load Current IO1 IO2 IO3 IO4 Parameter Value -15 to 27 300 400 600 100 Unit V mA mA mA mA ABSOLUTE MAXIMUM RATINGS Symbol VS VI VO Tstg Tj Supply Voltage Input Voltage (ON/OFF) Output Voltage (LVW, Reset) Storage Temperature Range Junction Temperature Range Load Dump (5ms rise, 115ms decay) Parameter Value -35 to 60 0 to 12 0 to 12 -65 to 150 max 150 60 Unit V V V °C °C V PIN CONNECTION APPLICATION CIRCUIT THERMAL DATA Symbol Rth j-case 2/9 Parameter Thermal Resis...