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Teilenummer | L78L00 |
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Beschreibung | POSITIVE VOLTAGE REGULATORS | |
Hersteller | STMicroelectronics | |
Logo | ||
Gesamt 30 Seiten L78L
Positive voltage regulators
Datasheet - production data
Features
Output current up to 100 mA
Output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15;
18; 24 V thermal overload protection
Short-circuit protection
No external components are required
Available in either ± 4% (A) or ± 8% (C)
selection
Description
The L78L series of three-terminal positive
regulators employ internal current limiting and
thermal shutdown, making them essentially
indestructible. If adequate heat-sink is provided,
they can deliver up to 100 mA output current.
They are intended as fixed voltage regulators in a
wide range of applications including local or on-
card regulation for elimination of noise and
distribution problems associated with single-point
regulation. In addition, they can be used with
power pass elements to make high-current
voltage regulators. The L78L series used as
Zener diode/resistor combination replacement,
offers e improvement along with lower quiescent
current and lower noise.
June 2016
DocID2145 Rev 26
This is information on a product in full production.
1/45
www.st.com
Electrical characteristics
L78L
4 Electrical characteristics
Symbol
VO
VO
∆VO
∆VO
Id
∆Id
eN
SVR
Vd
Refer to the test circuits, TJ = 0 to 125 °C, VI = 8.3 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified.
Table 3: Electrical characteristics of L78L33C
Parameter
Test conditions
Min. Typ. Max. Unit
Output voltage
Output voltage
Line regulation
Load regulation
Quiescent current
Quiescent current change
Output noise voltage
Supply voltage rejection
Dropout voltage
TJ = 25 °C
IO = 1 to 40 mA, VI = 5.3 to 20 V
IO = 1 to 70 mA, VI = 8.3 V
VI = 5.4 to 20 V, TJ = 25 °C
VI = 6.3 to 20 V, TJ = 25 °C
IO = 1 to 100 mA, TJ = 25 °C
IO = 1 to 40 mA, TJ = 25 °C
TJ = 25 °C
TJ = 125 °C
IO = 1 to 40 mA
VI = 6.3 to 20 V
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 6.3 to 16.3 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
3.036 3.3 3.564 V
2.97
2.97
3.63
V
3.63
150
mV
100
60
mV
30
6 mA
5.5 mA
0.2
mA
1.5
40 µV
41 49
dB
2V
6/45 DocID2145 Rev 26
6 Page Electrical characteristics
L78L
Refer to the test circuits, TJ = 0 to 125 °C, VI = 23 V, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF
unless otherwise specified
Table 9: Electrical characteristics of L78L15C
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
VO Output voltage
VO Output voltage
∆VO Line regulation
∆VO Load regulation
Id Quiescent current
∆Id
eN
SVR
Vd
Quiescent current change
Output noise voltage
Supply voltage rejection
Dropout voltage
TJ = 25 °C
IO = 1 to 40 mA, VI = 17.5 to 30 V
IO = 1 to 70 mA, VI = 23 V
VI = 17.5 to 30 V, TJ = 25 °C
VI = 20 to 30 V, TJ = 25 °C
IO = 1 to 100 mA, TJ = 25 °C
IO = 1 to 40 mA, TJ = 25 °C
TJ = 25 °C
TJ = 125 °C
IO = 1 to 40 mA
VI = 20 to 30 V
B = 10 Hz to 100 kHz, TJ = 25 °C
VI = 18.5 to 28.5 V, f = 120 Hz
IO = 40 mA, TJ = 25 °C
13.8 15 16.2 V
13.5 16.5
V
13.5 16.5
300
mV
250
150
mV
75
6.5 mA
6 mA
0.2
mA
1.5
90 µV
33 39
dB
1.7 V
12/45
DocID2145 Rev 26
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ L78L00 Schematic.PDF ] |
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