®
L4959
MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO
4 OUTPUTS: 12V (1.3A); 12V (0.8A); 8.6V (0.6A); 5.6V (0.25A) ST...
®
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
L4959
ABSOLUTE MAXIMUM RATINGS
Symbol VS IO Top Tstg DC Supply Voltage Output Current Operating Temperature Range Storage Temperature Parameter Value 35 internally limited 0 to +70 –40 to 150 °C °C Unit V
PIN CONNECTION (Top view)
11 10 9 8 7 6 5 4 3 2 1
OUT 12V(a) VS OUT 8.6V EN 8.6V EN 12V(a) GND EN 12V(b) N.C. OUT 5.6V VS OUT 12V(b)
TAB CONNECTED TO PIN 6
D97AU716A
PIN DESCRIPTION
Pin 1 2 3 4 5 6 7 8 9 10 11 Pins OUT 12V (b) VS OUT 5.6V N.C. EN 12V (b) GND EN 12V (a) EN 8.6V OUT 8.6 VS OUT 12V (a) Description 12V/1.3A SWITCHED OUTPUT VOLTAGE ...