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L4959 Datasheet(PDF) 3 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) 3 Page - STMicroelectronics

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THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-case
Thermal Resistance Junction-case
2
°C/W
ELECTRICAL CHARACTERISTICS (VS = 18V, Tcase = 25
°C, unless otherwise specified.)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
VS
Operating Supply Voltage
no load
15
22
30
V
loaded (*)
14.4
18
21.6
V
En
Output Noise Voltage
Any reg. supply,
f = 100Hz to 20KHz
200
400
µV
Iq
Quiescent Current
8
mA
5.6V/250mA OUTPUT VOLTAGE
Vout 5V
5V Output Voltage
IO = 125mA
5.45
5.9
V
14.4V < VS < 21.6V
5mA < I < 0.25
5.40
6
V
∆Vline
Line Regulation
14.4V < VS < 21.6V
5
50
mV
∆Vload
Load Regulation
5mA < Io < 250mA
50
150
mV
Vdropout
Dropout Voltage
Iout = 250mA
2.05
2.7
V
Ilim
Current Limit
VS = 21.6V
250
325
mA
8.6V/0.6A SWITCHED OUTPUT VOLTAGE
Vout 8V
8.6V Output Voltage
IO = 300mA
8.4
9.1
V
14.4V < VS < 21.6V 5mA < I < 0.6A
8.3
9.2
V
∆Vline
Line Regulation
14.4V < VS < 21.6V
5
50
mV
∆Vload
Load Regulation
5mA < Io < 0.6A
50
350
mV
Vdropout
Dropout Voltage
Iout = 0.6A
2.05
2.7
V
Ilim
Current Limit
VS = 21.6V
0.6
0.8
A
SWon
Switch ON
2.31
3.5
V
SW off
Switch OFF
1.5
2.11
V
SW hyst
Switch Hysteresis
200
mV
12V/0.8A SWITCHED OUTPUT VOLTAGE
Vout12Va
12V Output Voltage
Iout = 400mA
11.7
12.7
V
14.4V < VS < 21.6V
5mA < I < 0.8A
11.6
12.8
V
∆Vline
Line Regulation
14.4V < Vs < 21.6V
10
50
mV
∆Vload
Load Regulation
5mA < Io < 0.8A
100
350
mV
Vdropout
Dropout Voltage
Iout = 0.8A
2.13
2.7
V
Ilim
Current Limit
VS = 21.6V
0.8
1.1
A
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
12V/1.3A SWITCHED OUTPUT VOLTAGE
Vout12Vb
12V Output Voltage
Iout = 650mA
11.6
12.6
V
14.4V < VS < 21.6V
5mA < I < 1.3A
11.5
12.7
V
∆Vline
Line Regulation
14.4V < Vs < 21.6V
10
50
mV
∆Vload
Load Regulation
5mA < Io < 1.3A
200
450
mV
Vdropout
Dropout Voltage
Iout = 1.3A
2.15
2.7
V
Ilim
Current Limit
VS = 21.6V
1.3
1.7
A
L4959
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