JVC MX-G50 - Description of Major Ics

MX-G50/MX-G56
1-30
L4959 (RIC1) : Voltage regulator
1.Pin layout
2.Block diagram
3.Pin function
5.6V, 250mA
REGULATOR
REF
GEN
8.6V, 600mA
REGULATOR
SWITCHED
12V, 800mA
REGULATOR
SWITCHED
12V, 1.3A
REGULATOR
SWITCHED
V
S
2/10
GND
6
EN 8V
8
EN 12V(a)
7
EN 12V(b)
5
3
OUT 5.6V
9
OUT 8.6V
11
OUT 12V(a)
1
OUT 12V(b)
D97AU569C
1
2
3
4
5
6
7
9
10
11
8
OUT 12V(a)
V
S
OUT 8.6V
EN 8.6V
EN 12V(a)
GND
EN 12V(b)
N.C.
OUT 5.6V
V
S
OUT 12V(b)
TAB CONNECTED TO PIN 6
D97AU716A
Pin Pins Description
1 OUT 12V (b) 12V/1.3A SWITCHED OUTPUT VOLTAGE
2V
S
Supply Voltage
3 OUT 5.6V 5.6V/250mA OUTPUT VOLTAGE
4 N.C. not connected
5 EN 12V (b) Enable 12V/1.3A SWITCHED OUTPUT VOLTAGE
6 GND Ground
7 EN 12V (a) Enable 12V/0.8A SWITCHED OUTPUT VOLTAGE
8 EN 8.6V Enable 8.6V/0.6A SWITCHED OUTPUT VOLTAGE
9 OUT 8.6 8.6V/0.6A SWITCHED OUTPUT VOLTAGE
10 V
S
Supply Voltage
11 OUT 12V (a) 12V/0.8A SWITCHED OUTPUT VOLTAGE
Description of major ICs