®
L4954
QUAD MULTIFUNCTION VOLTAGE
REGULATOR FOR CAR RADIO
4
REGULATORS 10V (40mA); 8.
5V (175mA); 5V (650mA); 5V (100mA) STANDBY 10V AND 5V STAND BY
REGULATORS ARE LOW DROPOUT OUTPUTS 3 HIGH SIDE DRIVERS: 2A (HSD1), 0.
3A (HSD2 & HSD3) NO EXTERNAL CHARGE PUMP CAPACITORS ARE REQUIRED STAND BY MODE CONTROLLED BY 3 INPUT PINS: EN1 FOR REG1, REG2, REG3 AND HSD1, EN2 FOR HSD2, AND EN3 FOR HSD3 INDIVIDUAL THERMAL SHUTDOWN LOGIC OUTPUTS FOR SUPPLY UNDERVOLTAGE: (LVWARN, RESET) INDEPENDENT CURRENT LIMITING OVERVOLTAGE SHUTDOWN SHORT CIRCUIT PROTECTION LOAD DUMP PROTECTION AND OVERVOLTAGE SHUTDOWN DESCRIPTION L4954 is a quad output voltage
regulator and a BLOCK DIAGRAM
VS STCAP VOLTAGE REFERENCE
Mu...