L4959| Datasheet

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L4959

MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO
4 OUTPUTS: 12V (1.3A); 12V (0.8A); 8.6V (0.6A); 5.6V (0.25A) STANDBY OUT1 12V(a), OUT2 12V(b) AND OUT3 8.6V WITH INDEPENDENT ENABLE CONTROL FOR STAND-BY MODE SHORT-CIRCUIT PROTECTION TO GROUND THERMAL SHUTDOWN DESCRIPTION The L4959 is a monolithic Multifunction Voltage Regulator, designed mainly for supplying Home Audio systems. The L4959 contains one unswitched linear 5.6V regulator for Micro, two switched regulators 8.6V and 12V, suitable to feed CD or CD players and LED, Signal Process. An additional 12V regulator for Solenoid Motor an CD_TRAY Driven is also available.

Multiwatt 11 ORDERING NUMBER: L4959

BLOCK DIAGRAM
2/10 5.6V, 250mA REGULATOR 8.6V, 600mA REGULATOR SWITCHED EN 8V 8 12V, 800mA REGULATOR SWITCHED EN 12V(a) 7 12V, 1.3A REGULATOR SWITCHED EN 12V(b) 5 1 11

VS

3

OUT 5.6V

REF GEN

9

OUT 8.6V

OUT 12V(a)

OUT 12V(b)

6
D97AU569C

GND

January 1999

1/6

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L4959 DATASHEET