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L4959 Datasheet(PDF) 4 Page - STMicroelectronics

Part # L4959
Description  MULTIFUNCTION VOLTAGE REGULATOR FOR HOME AUDIO
PDF  6 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4959 Datasheet(HTML) 4 Page - STMicroelectronics

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Figure 2: PCB and Components layout of the Figure 1.
L4959
C2
0.33
µF
C3
0.1
µF
C1
2200
µF
35VL
+VS
GND
C4
0.1
µF
C5
0.1
µF
C6
0.1
µF
C7
100
µF
16VL
C8
100
µF
16VL
C9
100
µF
16VL
C10
100
µF
16VL
VCC
G
EN8.6V
EN12Va
EN12Vb
5.6V 0.25A
3
87
5
11
1
9
10
2
6
µ-PROC
SIGNAL
12Va 0.8A
12Vb 1.3A
8.6V 0.6A
DECK
CD
+5V
D97AU802
Figure 1: Application and Test Circuit.
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
SVR
Supply Voltage Rejection
f = 100Hz
f = 10KHz
55
40
75
dB
SWon
Switch ON
2.31
3.5
V
SW off
Switch OFF
1.5
2.11
V
SW hyst
Switch Hysteresis
200
mV
(*) The max value is limited by the power dissipation
L4959
4/6



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