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L78L05 Datasheet(PDF) 8 Page - STMicroelectronics

Part # L78L05
Description  POSITIVE VOLTAGE REGULATORS
Download  19 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L78L05 Datasheet(HTML) 8 Page - STMicroelectronics

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L78L00 SERIES
8/24
ELECTRICAL CHARACTERISTICS OF L78L18C (refer to the test circuits, TJ = 0 to 125°C, VI =27V,
IO =40 mA, CI =0.33 µF, CO = 0.1 µF unless otherwise specified).
ELECTRICAL CHARACTERISTICS OF L78L20C (refer to the test circuits, TJ = 0 to 125°C, VI =29V,
IO =40 mA, CI =0.33 µF, CO = 0.1 µF unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VO
Output Voltage
TJ = 25°C
16.6
18
19.4
V
VO
Output Voltage
IO = 1 to 40 mA
VI =22to33V
16.2
19.8
V
IO = 1 to 70 mA
VI = 27 V
16.2
19.8
∆V
O
Line Regulation
VI =22 to33 V
TJ = 25°C
320
mV
VI =22 to33 V
TJ = 25°C
270
∆V
O
Load Regulation
IO = 1 to 100 mA
TJ = 25°C
170
mV
IO =1to 40mA
TJ = 25°C
85
Id
Quiescent Current
TJ = 25°C
6.5
mA
TJ = 125°C
6
mA
∆I
d
Quiescent Current Change
IO =1to 40mA
0.2
mA
VI =23 to33 V
1.5
eN
Output Noise Voltage
B =10Hz to 100KHz
TJ = 25°C
120
µV
SVR
Supply Voltage Rejection
VI = 23 to 33 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
18.4
20
21.6
V
VO
Output Voltage
IO = 1 to 40 mA
VI =24to33V
18
22
V
IO = 1 to 70 mA
VI =29V
18
22
∆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
0.2
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
31
38
dB
Vd
Dropout Voltage
1.7
V


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