L78S09CT Просмотр технического описания (PDF) - STMicroelectronics
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L78S09CT Datasheet PDF : 31 Pages
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Electrical characteristics
L78Sxx - L78SxxC
Table 9.
Symbol
Electrical characteristics of L78S15 (refer to the test circuits, TJ = 25 °C, VI = 23 V,
IO = 500 mA, unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
VO
VO
ΔVO
ΔVO
IQ
ΔIQ
ΔVO/ΔT
eN
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
IO = 1A, VI = 17.5V
VI = 17.5 to 30V
VI = 20 to 26V
IO = 20 mA to 2A
IO = 20mA to 1A
VI = 17.5 to 30 V, IO = 20mA
IO = 5mA, TJ = -55°C to 150°C
B =10Hz to 100kHz
SVR Supply voltage rejection f = 120Hz
VI Operating input voltage IO ≤1.5A
RO Output resistance
f = 1 kHz
Isc Short circuit current
VI = 27V
Iscp Short circuit peak current
14.4 15 15.6 V
14.25 15 15.75 V
300
mV
150
180 mV
8
mA
0.5
mA
1
-1
mV/°C
90
µV
52
dB
18
V
19
mΩ
500
mA
3
A
Table 10.
Symbol
Electrical characteristics of L78S18 (refer to the test circuits, TJ = 25 °C, VI = 26 V,
IO = 500 mA, unless otherwise specified)
Parameter
Test conditions
Min. Typ. Max. Unit
VO
VO
ΔVO
ΔVO
IQ
ΔIQ
ΔVO/ΔT
eN
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output voltage drift
Output noise voltage
IO = 1A, VI = 20.5V
VI = 20.5 to 30V
VI = 22 to 28V
IO = 20 mA to 2A
IO = 20mA to 1A
VI = 20.5 to 30 V, IO = 20mA
IO = 5mA, TJ = -55°C to 150°C
B =10Hz to 100kHz
SVR Supply voltage rejection f = 120Hz
VI Operating input voltage IO ≤1.5A
RO Output resistance
f = 1 kHz
Isc Short circuit current
VI = 27V
Iscp Short circuit peak current
17.1 18 18.9 V
17
18
19
V
360
mV
180
200 mV
8
mA
0.5
mA
1
-1
mV/°C
110
µV
49
dB
21
V
22
mΩ
500
mA
3
A
10/31
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