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Part Number: L4946B

 

 

 

 

Description: The L4946B is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (...


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L4946B General Description


The L4946B is a quad output low drop voltage regulator. The four outputs are a low drop 10V at 125mA (VO1), a 8.5V at 250mA (VO2), a 5V at 200mA (VO3) and a low drop 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 decay slowly giving the mP time to store data. This IC is designed for supplying microcomputer controlled systems specially in automotive applications.

L4946B Maximum Ratings

Symbol Parameter Value Unit
VS Supply Voltage -35 to 60 V
VI Input Voltage (ON/OFF) 0 to 5 V
VO Output Voltage (LVW, Reset) 0 to 5 V
TGST Storage Temperature Range -65 to 150 °C
TJ Junction Temperature Range max 150 °C
Load Dump (5ms rise, 115ms decay) 60 V

L4946B Connection Diagram

L4946B Connection Diagram

L4946B datasheet

L4946B
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  • Datasheet: L4946B
  • File Size: 91070 KB
  • Manufacturer: STMICROELECTRONICS [STMicroelectronics]
  • Click here to Download

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