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Número de pieza | L78S15T | |
Descripción | 2A POSITIVE VOLTAGE REGULATORS | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
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No Preview Available ! L78S00
SERIES
2A POSITIVE VOLTAGE REGULATORS
. OUTPUT CURRENT TO 2A
. OUTPUT VOLTAGES OF 5 ; 7.5 ; 9 ; 10 ; 12 ; 15 ;
18 ; 24V
. THERMAL OVERLOAD PROTECTION
. SHORT CIRCUIT PROTECTION
. OUTPUT TRANSISTOR SOA PROTECTION
DESCRIPTION
The L78S00 series of three-terminal positive regu-
lators is available in TO-220 and TO-3 packages
and with several fixed output voltages, making it
useful in a wide range of applications. These regu-
lators can provide local on-card regulation, eliminat-
ing the distribution problems associated with single
point regulation. Each type employs internal current
limiting, thermal shut-down and safe area protec-
tion, making it essentially indestructible. If adequate
heat sinking is provided, they can deliver over 2A
output current. Although designed primarily as fixed
voltage regulators, these devices can be used with
external components to obtain adjustable voltages
and currents.
BLOCK DIAGRAM
TO-3
TO-220
January 1993
1/21
1 page L78S00 SERIES
ELECTRICAL CHARACTERISTICS FOR L78S05 (refer to the test circuits, Tj = 25 oC,
Vi = 10V, Io = 500 mA unless otherwise specified)
Symbol
Parameter
Vo Output Voltage
Vo Output Voltage
∆Vo Line Regulation
∆Vo
Id
∆Id
∆Id
∆Vo
∆T
eN
SVR
Vi
Ro
Isc
Iscp
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Operating Input Voltage
Output Resistance
Short Circuit Current
Short Circuit Peack Current
Test Conditions
Io = 1 A
Vi = 7 V
Vi = 7 to 25 V
Vi = 8 to 25 V
Io = 20 mA to 2 A
Io = 20 mA to 1A
Io = 20 mA Vi = 7 to 25 V
Io = 5 mA
Tj = -55 to 150 oC
B = 10Hz to 100KHz
f = 120 Hz
Io ≤ 1.5 A
f = 1KHz
Vi = 27 V
Min.
4.8
4.75
Typ.
5
5
-1.1
Max.
5.2
5.25
100
50
100
8
0.5
1.3
40
60
8
17
500
3
Unit
V
V
mV
mV
mV
mA
mA
mA
mV/oC
µV
dB
V
mΩ
mA
A
ELECTRICAL CHARACTERISTICS FOR L78S75 (refer to the test circuits, Tj = 25 oC,
Vi = 12.5V, Io = 500 mA unless otherwise specified)
Symbol
Parameter
Vo Output Voltage
Vo Output Voltage
∆Vo Line Regulation
∆Vo
Id
∆Id
∆Id
∆Vo
∆T
eN
SVR
Vi
Ro
Isc
Iscp
Load Regulation
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Operating Input Voltage
Output Resistance
Short Circuit Current
Short Circuit Peack Current
Test Conditions
Io = 1 A
Vi = 9.5 V
Vi = 9.5 to 25 V
Vi = 10.5 to 20 V
Io = 20 mA to 2 A
Io = 20 mA to 1A
Io = 20 mA Vi = 9.5 to 25 V
Io = 5 mA
Tj = -55 to 150 oC
B = 10Hz to 100KHz
f = 120 Hz
Io ≤ 1.5 A
f = 1KHz
Vi = 27 V
Min.
7.15
7.1
Typ.
7.5
7.5
-0.8
Max.
7.9
7.95
120
60
120
8
0.5
1.3
52
54
10.5
16
500
3
Unit
V
V
mV
mV
mV
mA
mA
mA
mV/oC
µV
dB
V
mΩ
mA
A
5/21
5 Page L78S00 SERIES
ELECTRICAL CHARACTERISTICS FOR L78S12C (refer to the test circuits, Tj = 25 oC,
Vi = 19V, Io = 500 mA unless otherwise specified)
Symbol
Parameter
Vo Output Voltage
Vo Output Voltage
∆Vo Line Regulation
∆Vo Load Regulation
Id
∆Id
∆Id
∆Vo
∆T
eN
SVR
Vi
Ro
Isc
Iscp
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Operating Input Voltage
Output Resistance
Short Circuit Current
Short Circuit Peack Current
Test Conditions
Io = 1 A
Vi = 14.5 V
Vi = 14.5 to 30 V
Vi = 16 to 22 V
Io = 20 mA to 1.5 A
Io = 2 A
Io = 20 mA to 1A
Io = 20 mA Vi = 14.5 to 30 V
Io = 5 mA
Tj = 0 to 70 oC
B = 10Hz to 100KHz
f = 120 Hz
Io ≤ 1.5 A
f = 1KHz
Vi = 27 V
Min.
11.5
11.4
Typ.
12
12
150
-1
Max.
12.5
12.6
240
120
240
8
0.5
1
75
47
15
18
500
3
Unit
V
V
mV
mV
mV
mA
mA
mA
mV/oC
µV
dB
V
mΩ
mA
A
ELECTRICAL CHARACTERISTICS FOR L78S15C (refer to the test circuits, Tj = 25 oC,
Vi = 23V, Io = 500 mA unless otherwise specified)
Symbol
Parameter
Vo Output Voltage
Vo Output Voltage
∆Vo Line Regulation
∆Vo Load Regulation
Id
∆Id
∆Id
∆Vo
∆T
eN
SVR
Vi
Ro
Isc
Iscp
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Supply Voltage Rejection
Operating Input Voltage
Output Resistance
Short Circuit Current
Short Circuit Peack Current
Test Conditions
Io = 1 A
Vi = 17.5 V
Vi = 17.5 to 30 V
Vi = 20 to 26 V
Io = 20 mA to 1.5 A
Io = 2 A
Io = 20 mA to 1A
Io = 20 mA Vi = 17.5 to 30 V
Io = 5 mA
Tj = 0 to 70 oC
B = 10Hz to 100KHz
f = 120 Hz
Io ≤ 1.5 A
f = 1KHz
Vi = 27 V
Min.
14.4
14.25
Typ.
15
15
150
-1
Max.
15.6
15.75
300
150
300
8
0.5
1
90
46
18
19
500
3
Unit
V
V
mV
mV
mV
mA
mA
mA
mV/oC
µV
dB
V
mΩ
mA
A
11/21
11 Page |
Páginas | Total 21 Páginas | |
PDF Descargar | [ Datasheet L78S15T.PDF ] |
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