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L78L05ABUTR Datasheet(PDF) 23 Page - STMicroelectronics

Part No. L78L05ABUTR
Description  Positive voltage regulators
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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L78L05ABUTR Datasheet(HTML) 23 Page - STMicroelectronics

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DocID2145 Rev 25
23/46
L78L
Electrical characteristics
46
Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB),VI = 27 V,
IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified.
Table 20. Electrical characteristics of L78L18AC
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
TJ = 25 °C
17.3
18
18.7
V
VO
Output voltage
IO = 1 to 40 mA, VI = 22 to 33 V
17.1
18.9
V
IO = 1 to 70 mA, VI = 27 V
17.1
18.9
DVO
Line regulation
VI = 22 to 33 V, TJ = 25 °C
320
mV
VI = 22 to 33 V, TJ = 25 °C
270
DVO
Load regulation
IO = 1 to 100 mA, TJ = 25 °C
170
mV
IO = 1 to 40 mA, TJ = 25 °C
85
Id
Quiescent current
TJ = 25 °C
6.5
mA
TJ = 125 °C
6
mA
DId
Quiescent current change
IO = 1 to 40 mA
0.1
mA
VI = 23 to 33 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, TJ = 25 °C
120
µV
SVR
Supply voltage rejection
VI = 23 to 33 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
33
38
dB
Vd
Dropout voltage
1.7
V


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