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L78S05CT Datasheet(PDF) 14 Page - STMicroelectronics

No. de pieza L78S05CT
Descripción Electrónicos  2 A positive voltage regulators
PDF  31 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L78S05CT Datasheet(HTML) 14 Page - STMicroelectronics

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Electrical characteristics
L78Sxx - L78SxxC
14/31
Table 17.
Electrical characteristics of L78S15C (refer to the test circuits, TJ = 25 °C, VI = 23 V,
IO = 500 mA, unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
14.4
15
15.6
V
VO
Output voltage
IO = 1A, VI = 17.5V
14.25
15
15.75
V
ΔVO
Line regulation
VI = 17.5 to 30V
300
mV
VI = 20 to 26V
150
ΔVO
Load regulation
IO = 20 mA to 1.5A
300
mV
IO = 2A
150
IQ
Quiescent current
8
mA
ΔIQ
Quiescent current change
IO = 20mA to 1A
0.5
mA
VI = 17.5 to 30 V, IO = 20mA
1
ΔVO/ΔT Output voltage drift
IO = 5mA, TJ = 0°C to 70°C
-1
mV/°C
eN
Output noise voltage
B =10Hz to 100kHz
90
µV
SVR
Supply voltage rejection
f = 120Hz
46
dB
VI
Operating input voltage
IO ≤1A
18
V
RO
Output resistance
f = 1 kHz
19
m
Ω
Isc
Short circuit current
VI = 27V
500
mA
Iscp
Short circuit peak current
3
A
Table 18.
Electrical characteristics of L78S18C (refer to the test circuits, TJ = 25 °C, VI = 26 V,
IO = 500 mA, unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VO
Output voltage
17.1
18
18.9
V
VO
Output voltage
IO = 1A, VI = 20.5V
17
18
19
V
ΔVO
Line regulation
VI = 20.5 to 30V
360
mV
VI = 22 to 28V
180
ΔVO
Load regulation
IO = 20 mA to 1.5A
360
mV
IO = 2A
200
IQ
Quiescent current
8
mA
ΔIQ
Quiescent current change
IO = 20mA to 1A
0.5
mA
VI = 20.5 to 30 V, IO = 20mA
1
ΔVO/ΔT Output voltage drift
IO = 5mA, TJ = 0°C to 70°C
-1
mV/°C
eN
Output noise voltage
B =10Hz to 100kHz
110
µV
SVR
Supply voltage rejection
f = 120Hz
43
dB
VI
Operating input voltage
IO ≤1A
21
V
RO
Output resistance
f = 1 kHz
22
m
Ω
Isc
Short circuit current
VI = 27V
500
mA
Iscp
Short circuit peak current
3
A



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