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L78L00 Datasheet(PDF) 14 Page - STMicroelectronics

Part # L78L00
Description  POSITIVE VOLTAGE REGULATORS
PDF  24 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L78L00 Datasheet(HTML) 14 Page - STMicroelectronics

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L78L00 SERIES
14/24
ELECTRICAL CHARACTERISTICS OF L78L20AB AND L78L20AC
(refer to the test circuits, VI = 29V, IO =40mA, CI =0.33 µF, CO =0.1 µF,
TJ = 0 to 125°C for L78L20AC, TJ = -40 to 125°C for L78L20AB, unless otherwise specified)
ELECTRICAL CHARACTERISTICS OF L78L24AB AND L78L24AC
(refer to the test circuits, VI = 27V, IO =40mA, CI =0.33 µF, CO =0.1 µF,
TJ = 0 to 125°C for L78L24AC, TJ = -40 to 125°C for L78L24AB, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = 25°C
19.2
20
20.8
V
VO
Output Voltage
IO = 1 to 40 mA
VI =24to33V
19
21
V
IO = 1 to 70 mA
VI =29V
19
21
∆V
O
Line Regulation
VI = 22.5 to 34 V
TJ = 25°C
330
mV
VI =24 to34 V
TJ = 25°C
280
∆V
O
Load Regulation
IO = 1 to 100 mA
TJ = 25°C
180
mV
IO =1to 40mA
TJ = 25°C
90
Id
Quiescent Current
TJ = 25°C
6.5
mA
TJ = 125°C
6
mA
∆I
d
Quiescent Current Change
IO =1to 40mA
0.1
mA
VI =25 to33 V
1.5
eN
Output Noise Voltage
B =10Hz to 100KHz
TJ = 25°C
120
µV
SVR
Supply Voltage Rejection
VI = 25 to 35 V
f = 120Hz
IO =40 mA
TJ = 25°C
32
38
dB
Vd
Dropout Voltage
1.7
V
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = 25°C
232425
V
VO
Output Voltage
IO = 1 to 40 mA
VI =27to38V
22.8
25.2
V
IO = 1 to 70 mA
VI = 33 V
22.8
25.2
∆V
O
Line Regulation
VI =27 to38 V
TJ = 25°C
350
mV
VI =28 to38 V
TJ = 25°C
300
∆V
O
Load Regulation
IO = 1 to 100 mA
TJ = 25°C
200
mV
IO =1to 40mA
TJ = 25°C
100
Id
Quiescent Current
TJ = 25°C
6.5
mA
TJ = 125°C
6
mA
∆I
d
Quiescent Current Change
IO =1to 40mA
0.1
mA
VI =28 to38 V
1.5
eN
Output Noise Voltage
B =10Hz to 100KHz
TJ = 25°C
200
µV
SVR
Supply Voltage Rejection
VI = 23 to 33 V
f = 120Hz
IO =40 mA
TJ = 25°C
31
37
dB
Vd
Dropout Voltage
1.7
V



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