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2022-09-24 23:24:28
L4946B-QUAD with inhibit and reset voltage regulator
Features
4 outputs: 10V (125mA); 8.5V (250mA); 5V (200mA); 5V (100mA)
10V and 5V (100mA) output low dropout
5V (100mA) ST-BY output voltage is under voltage warning output (LVW)
Thermal Shutdown and Current Limit (Foldback)
Reverse battery and load dump protection
INHIBIT (ON/OFF) and reset function
Description The L4946B is a quad output low dropout voltage regulator. The fourth is a low drop of 125mA at 10V (VO1), 8.5V at 250mA (VO2), a maximum of 200mA at 5V (VO3) and a low st-line drop of 5V at 100mA (VO4). The IC includes a monitoring circuit to warn if a low or no voltage condition occurs. VO1, 2, 3 are off in ST-mode. The STCAP pin allows the battery voltage to decay slowly giving the MP time to store data. This IC is designed for supplying microcomputer control systems especially in automotive applications.