This is information on a product in full production.
February 2015 DocID2145 Rev 24 1/46
L78L
Positive vol t a ge regula t ors
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 protect ion
•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.
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Contents L78L
2/46 DocI D2145 Rev 24
Contents
1 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.1 T O-92 pa ckage information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.2 TO-92 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.3 TO-92 Ammopack packing information . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.4 SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.5 SO-8 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.6 SOT-89 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.7 SOT-89 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
DocID2145 Rev 24 3/46
L78L Diagram
46
1 Diagram
Figure 1. Schematic diag ram
Pin configuration L78L
4/46 DocI D2145 Rev 24
2 Pin configuration
Figure 2. Pin connection (top view, bottom view for TO-92)
SOT-89
SO-8 TO-92
PIN 1 = V
OUT
PIN 2 = GND
PIN 3 = V
IN
Figure 3. Test circuits
DocID2145 Rev 24 5/46
L78L Maximum ratings
46
3 Maximum ratings
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
V
I
DC Input voltage
V
O
= 3.3 to 9 V 30
VV
O
= 12 to 15 V 35
V
O
= 18 to 24 V 40
I
O
Output current 100 mA
P
D
Power dissipation Internally limited
(1)
1. Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the
die attach flag. This particular fr ame decreases the total thermal resistance of the package and increases its ability to
dissipate power when an appropriate area of copper on the printed circuit board is available for heat-sinking. The external
dimensions are the same as for the standard SO-8.
mW
T
STG
Storage temperature range -65 to 150 °C
T
OP
Operating junction temperature range for L78LxxAC /
L78LxxC 0 to 125 °C
for L78LxxAB -40 to 125
Table 2. Thermal data
Symbol Parameter SO-8 TO-92 SOT-89 Unit
R
thJC
Thermal resistance junction-case (max) 20 15 °C/W
R
thJA
Thermal resistance junction-ambient (max) 55
(1)
200 55
(1)
°C/W
1. Considering 6 cm² of copper Board heat-sink.
Ele ctrical characteristics L78L
6/46 DocI D2145 Rev 24
4 Electrical characteristics
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 8.3 V, I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF
unless otherwise specified.
Table 3. Electrical characteristics of L78L33C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 3.036 3.3 3.564 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 5.3 to 20 V 2.97 3.63 V
I
O
= 1 to 70 mA, V
I
= 8.3 V 2.97 3 .63
DV
O
Line regulation V
I
= 5.3 to 20 V, T
J
= 25 °C 150 mV
V
I
= 6.3 to 20 V, T
J
= 25 °C 100
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 60 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 30
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 6.3 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 40 µV
SVR Supply voltage rejection V
I
= 6.3 to 16.3 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 41 49 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 7/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 10 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 4. Electrical characteristics of L78L05C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 4.6 5 5.4 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 7 to 20 V 4.5 5.5 V
I
O
= 1 to 70 mA, V
I
= 10 V 4.5 5.5
DV
O
Line regulation V
I
= 8.5 to 20 V, T
J
= 25 °C 200 mV
V
I
= 9 to 20 V, T
J
= 25 °C 150
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 60 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 30
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 8 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 40 µV
SVR Supply voltage rejection V
I
= 9 to 20 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 40 49 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
8/46 DocI D2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C,V
I
= 14 V, I
O
= 40 mA, C
I
= 0.33 µF, C
O
= 0.1 µF
unless otherwise specified.
Table 5. Electrical characteristics of L78L08C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 7.36 8 8.64 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 8.5 to 20 V 7.2 8.8 V
I
O
= 1 to 70 mA, V
I
= 12 V 7.2 8.8
DV
O
Line regulation V
I
= 8.5 to 20 V, T
J
= 25 °C 200 mV
V
I
= 9 to 20 V, T
J
= 25 °C 150
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 8 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 60 µV
SVR Supply voltage rejection V
I
= 9 to 20 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 36 45 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 9/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 15 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 6. Electrical characteristics of L78L09C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 8.28 9 9.72 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 11.5 to 23 V 8.1 9.9 V
I
O
= 1 to 70 mA, V
I
= 15 V 8.1 9.9
DV
O
Line regulation V
I
= 11.5 to 23 V, T
J
= 25 °C 250 mV
V
I
= 12 to 23 V, T
J
= 25 °C 200
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 12 to 23 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 70 µV
SVR Supply voltage rejection V
I
= 12 to 23 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 36 44 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
10/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 16 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 7. Electrical characteristics of L78L10C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 9.2 10 10.8 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 12.5 to 23 V 9 11 V
I
O
= 1 to 70 mA, V
I
= 16 V 9 11
DV
O
Line regulation V
I
= 12.5 to 23 V, T
J
= 25 °C 230 mV
V
I
= 13 to 23 V, T
J
= 25 °C 170
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 13 to 23 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 60 µV
SVR Supply voltage rejection V
I
= 14 to 23 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 37 45 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 11/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 19 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 8. Electrical characteristics of L78L12C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 11.1 12 12.9 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 14.5 to 27 V 10.8 13.2 V
I
O
= 1 to 70 mA, V
I
= 19 V 10.8 13.2
DV
O
Line regulation V
I
= 14.5 to 27 V, T
J
= 25 °C 250 mV
V
I
= 16 to 27 V, T
J
= 25 °C 200
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 100 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 50
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 16 to 27 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 80 µV
SVR Supply voltage rejection V
I
= 15 to 25 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 36 42 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
12/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 23 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified
Table 9. Electrical characteristics of L78L15C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 13.8 15 16.2 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 17.5 to 30 V 13.5 16.5 V
I
O
= 1 to 70 mA, V
I
= 23 V 13.5 16.5
DV
O
Line regulation V
I
= 17.5 to 30 V, T
J
= 25 °C 300 mV
V
I
= 20 to 30 V, T
J
= 25 °C 250
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 150 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 75
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 20 to 30 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 90 µV
SVR Supply voltage rejection V
I
= 18.5 to 28.5 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 33 39 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 13/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 27 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 10. Electrical characteristics of L78L18C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 16.6 18 19.4 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 22 to 33 V 16.2 19.8 V
I
O
= 1 to 70 mA, V
I
= 27 V 16.2 19.8
DV
O
Line regulation V
I
= 22 to 33 V, T
J
= 25 °C 320 mV
V
I
= 22 to 33 V, T
J
= 25 °C 270
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 170 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 85
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 23 to 33 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 120 µV
SVR Supply voltage rejection V
I
= 23 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 32 38 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
14/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C, V
I
= 33 V, I
O
= 40 mA, C
I
= 0.33 µ F, C
O
= 0.1 µF
unless otherwise specified.
Table 11. Electrical characteristics of L78L24C
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 22.1 24 25.9 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 27 to 38 V 21.6 26.4 V
I
O
= 1 to 70 mA, V
I
= 33 V 21.6 26.4
DV
O
Line regulation V
I
= 27 to 38 V, T
J
= 25 °C 350 mV
V
I
= 28 to 38 V, T
J
= 25 °C 300
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 200 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 100
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.2 mA
V
I
= 28 to 38 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 200 µV
SVR Supply voltage rejection V
I
= 29 to 35 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 30 37 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 15/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB),V
I
= 8.3 V,
I
O
= 40mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 12. Electrical characteristics of L78L33AB and L78L33AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 3.168 3.3 3.432 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 5.3 to 20 V 3.135 3.465 V
I
O
= 1 to 70 mA, V
I
= 8.3 V 3.135 3.465
DV
O
Line regulation V
I
= 5.3 to 20 V, T
J
= 25 °C 150 mV
V
I
= 6.3 to 20 V, T
J
= 25 °C 100
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 60 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 30
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 6.3 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 40 µV
SVR Supply voltage rejection V
I
= 6.3 to 16.3 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 41 49 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
16/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
= 10 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 13. Electrical characteristics of L78L05AB and L78L05AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 4.8 5 5.2 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 7 to 20 V 4.75 5.25 V
I
O
= 1 to 70 mA, V
I
= 10 V 4.75 5.25
DV
O
Line regulation V
I
= 7 to 20 V, T
J
= 25 °C 150 mV
V
I
= 8 to 20 V, T
J
= 25 °C 100
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 60 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 30
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 8 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 40 µV
SVR Supply voltage rejection V
I
= 8 to 18 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 41 49 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 17/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
= 12 V,
I
O
= 40 m A, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 14. Electrical characteristics of L78L06AB and L78L06AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 5.76 6 6.24 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 8.5 to 20 V 5.7 6.3 V
I
O
= 1 to 70 mA, V
I
= 12 V 5.7 6.3
ΔV
O
Line regulation V
I
= 8.5 to 20 V, T
J
= 25 °C 150 mV
V
I
= 9 to 20 V, T
J
= 25 °C 100
ΔV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 60 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 30
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
ΔI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 9 to 20 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 50 µV
SVR Supply voltage rejection V
I
= 9 to 20 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 39 46 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
18/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
= 14 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 15. Electrical characteristics of L78L08AB and L78L08AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 7.68 8 8.32 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 10.5 to 23 V 7.6 8.4 V
I
O
= 1 to 70 mA, V
I
= 14 V 7.6 8.4
DV
O
Line regulation V
I
= 10.5 to 23 V, T
J
= 25 °C 175 mV
V
I
= 11 to 23 V, T
J
= 25 °C 125
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 11 to 23 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 60 µV
SVR Supply voltage rejection V
I
= 12 to 23 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 37 45 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 19/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
=15 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 16. Electrical characteristics of L78L09AB and L78L09AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 8.64 9 9.36 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 11.5 to 23 V 8.55 9.45 V
I
O
= 1 to 70 mA, V
I
= 15 V 8.55 9.45
DV
O
Line regulation V
I
= 11.5 to 23 V, T
J
= 25 °C 225 mV
V
I
= 12 to 23 V, T
J
= 25 °C 150
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 12 to 23 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 70 µV
SVR Supply voltage rejection V
I
= 12 to 23 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 37 44 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
20/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
= 16 V,
I
O
= 40mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 17. Electrical characteristics of L78L10AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 9.6 10 10.4 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 12.5 to 23 V 9.5 10.5 V
I
O
= 1 to 70 mA, V
I
= 16 V 9.5 10.5
DV
O
Line regulation V
I
= 12.5 to 23 V, T
J
= 25 °C 230 mV
V
I
= 13 to 23 V, T
J
= 25 °C 170
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 80 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 40
I
d
Quiescent current T
J
= 25 °C 6 mA
T
J
= 125 °C 5.5 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 13 to 23 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 60 µV
SVR Supply voltage rejection V
I
= 14 to 23 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 37 45 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 21/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB), V
I
=19 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 18. Electrical characteristics of L78L12AB and L78L12AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 11.5 12 12.5 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 14.5 to 27 V 11.4 12.6 V
I
O
= 1 to 70 mA, V
I
= 19 V 11.4 12.6
DV
O
Line regulation V
I
= 14.5 to 27 V, T
J
= 25 °C 250 mV
V
I
= 16 to 27 V, T
J
= 25 °C 200
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 100 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 50
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 16 to 27 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 80 µV
SVR Supply voltage rejection V
I
= 15 to 25 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 37 42 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
22/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB),V
I
= 23 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 19. Electrical characteristics of L78L15AB and L78L15AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 14.4 15 15.6 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 17.5 to 30 V 14.25 15.75 V
I
O
= 1 to 70 mA, V
I
= 23 V 14.25 15.75
DV
O
Line regulation V
I
= 17.5 to 30 V, T
J
= 25 °C 300 mV
V
I
= 20 to 30 V, T
J
= 25 °C 250
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 150 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 75
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 20 to 30 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 90 µV
SVR Supply voltage rejection V
I
= 18.5 to 28.5 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 34 39 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 23/46
L78L Electri cal ch ara ct er istics
46
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB),V
I
= 27 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 20. Electrical characteristics of L78L18AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 17.3 18 18.7 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 22 to 33 V 17.1 18.9 V
I
O
= 1 to 70 mA, V
I
= 27 V 17.1 18.9
DV
O
Line regulation V
I
= 22 to 33 V, T
J
= 25 °C 320 mV
V
I
= 22 to 33 V, T
J
= 25 °C 270
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 170 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 85
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 23 to 33 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 120 µV
SVR Supply voltage rejection V
I
= 23 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 33 38 dB
V
d
Dropout voltage 1.7 V
Ele ctrical characteristics L78L
24/46 DocID2145 Rev 24
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB),V
I
= 33 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 21. Electrical characteristics of L78L24AB and L78L24AC
Symbol Parameter Test cond iti ons Min. Typ. Max. Unit
V
O
Output voltage T
J
= 25 °C 23 24 25 V
V
O
Output voltage I
O
= 1 to 40 mA, V
I
= 27 to 38 V 22.8 25.2 V
I
O
= 1 to 70 mA, V
I
= 33 V 22.8 25.2
DV
O
Line regulation V
I
= 27 to 38 V, T
J
= 25 °C 350 mV
V
I
= 28 to 38 V, T
J
= 25 °C 300
DV
O
Load regulation I
O
= 1 to 100 mA, T
J
= 25 °C 200 mV
I
O
= 1 to 40 mA, T
J
= 25 °C 100
I
d
Quiescent current T
J
= 25 °C 6.5 mA
T
J
= 125 °C 6 mA
DI
d
Quiescent current change I
O
= 1 to 40 mA 0.1 mA
V
I
= 28 to 38 V 1.5
eN Output noise voltage B = 10 Hz to 100 kHz, T
J
= 25 °C 200 µV5y
SVR Supply voltage rejection V
I
= 29 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C 31 37 dB
V
d
Dropout voltage 1.7 V
DocID2145 Rev 24 25/46
L78L Typical performanc e
46
5 Typical performance
Figure 4. L78L05/12 output voltage vs. ambient
temperature Figure 5. L78L05/12/24 load characteristics
Figure 6. L78L05/12/24 thermal shutdown Figure 7. L78L05/12 quiescent current vs.
output current
Figure 8. L78L05 quiescent current vs. input
voltage Figure 9. L78L05/12/24 output characteristics
Typical performa nce L78L
26/46 DocID2145 Rev 24
Figure 10. L78L05/12/24 ripple rejection Figure 11. L78L05 dropout characteristics
Figure 12. L78L short-circuit output current
DocID2145 Rev 24 27/46
L78L Typical application
46
6 Typical application
Figure 13. High output current short-circuit protected
Figure 14. Outuput boost circuit
Typical application L78L
28/46 DocID2145 Rev 24
Figure 15. Current regulator
Figure 16. Adjustable output regulator
DocID2145 Rev 24 29/46
L78L Package information
46
7 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
is an ST trademark.
7.1 TO-92 package information
Figure 17. TO-92 package outline
0102782 D
Package information L78L
30/46 DocID2145 Rev 24
7.2 TO-92 packing information
Figure 18. TO-92 tape and reel outline
Table 22. TO-92 mechanical data
Dim. mm
Min. Typ. Max.
A4.32 4.95
b0.36 0.51
D4.45 4.95
E3.30 3.94
e2.41 2.67
e1 1.14 1.40
L 12.70 15.49
R2.16 2.41
S1 0.92 1.52
W0.41 0.56
V5°
:
:
:
:
$
G
'
+
+
+
/
O
) )
3
3
GHOWD3
GHOWD+
7 7
7
W
'5$:,1*127,16&$/(
DocID2145 Rev 24 31/46
L78L Package information
46
Table 23. TO-92 tape and reel mechanical data
Dim. mm
Min. Typ. Max.
A1 4.80
T3.80
T1 1.60
T2 2.30
d 0.45 0.47 0.48
P0 12.50 12.70 12.90
P2 5.65 6.35 7.05
F1, F2 2.40 2.50 2.94
F3 4.98 5.08 5.48
delta H -2.00 2.00
W 17.50 18.00 19.00
W05.56.006.5
W1 8.50 9.00 9.25
W2 0.50
H 18.50 21
H3 0.5 1 2
H0 15.50 16.00 18.8
H1 25.0 27.0
D0 3.80 4.00 4.20
t0.90
L11.00
l1 3.00
delta P -1.00 1.00
Ø1 352 355 358
Ø2 28 30 32
u444750
Package information L78L
32/46 DocID2145 Rev 24
7.3 TO-92 Ammopack packing information
Figure 19. TO-92 Ammopack tape and reel outline
W
W1
W0
W2
A
1
d
D0
H1
H
H0
L
l1
F1 F2
P2
P0
delta H
T2 T1
T
t
F3
H3
0050910S_Rev_U
DocID2145 Rev 24 33/46
L78L Package information
46
Table 24. TO-92 Ammopack tape and reel mechanical data
Dim. mm
Min. Typ. Max.
A1 4.80
T3.80
T1 1.60
T2 2.30
d 0.45 0.47 0.48
P0 12.50 12.70 12.90
P2 5.65 6.35 7.05
F1, F2 2.40 2.50 2.94
F3 4.98 5.08 5.48
delta H -2.00 2.00
W 17.50 18.00 19.00
W05.56.006.5
W1 8.50 9.00 9.25
W2 0.50
H 18.50 21
H3 0.5 1 2
H0 15.50 16.00 18.8
H1 25.0 27.0
D0 3.80 4.00 4.20
t0.90
L11.00
l1 3.00
delta P -1.00 1.00
Package information L78L
34/46 DocID2145 Rev 24
7.4 SO-8 package information
Figure 20. SO-8 package outline
0016023_G_FU
DocID2145 Rev 24 35/46
L78L Package information
46
Table 25. SO-8 mechanical dat a
Dim. mm
Min. Typ. Max.
A1.75
A1 0.10 0.25
A2 1.25
b0.31 0.51
b1 0.28 0.48
c0.10 0.25
c1 0.10 0.23
D4.804.905.00
E5.806.006.20
E1 3.80 3.90 4.00
e1.27
h0.25 0.50
L0.40 1.27
L1 1.04
L2 0.25
k0° 8°
ccc 0.10
Package information L78L
36/46 DocID2145 Rev 24
Figure 21. SO-8 recommended footprint
Footprint_0016023_G_FU
DocID2145 Rev 24 37/46
L78L Package information
46
7.5 SO-8 packing information
Figure 22. SO-8 tape and reel outline
Figure 23. SO-8 tape and reel mechanical data
Dim. mm
Min. Typ. Max.
A
-
330
C 12.8 13.2
D20.2
N60
T22.4
Ao 8.1 8.5
Bo 5.5 5.9
Ko 2.1 2.3
Po 3.9 4.1
P7.9 8.1
Package information L78L
38/46 DocID2145 Rev 24
7.6 SOT-89 package information
Figure 24. SOT-89 package outline
B5(9B(B5(9B(
DocID2145 Rev 24 39/46
L78L Package information
46
Table 26. SOT-89 mechanical data
Dim. mm
Min. Typ. Max.
A 1.40 1.60
B 0.44 0.56
B1 0.36 0.48
C 0.35 0.44
C1 0.35 0.44
D 4.40 4.60
D1 1.62 1.83
D3 0.90
E 2.29 2.60
e 1.42 1.57
e1 2.92 3.07
H 3.94 4.25
H1 2.70 3.10
K1° 8°
L 0.89 1.20
R0.25
b90°
Package information L78L
40/46 DocID2145 Rev 24
Figure 25. SOT-89 recommended footpr int
Packaging mechanical data
)RRWSULQW
DocID2145 Rev 24 41/46
L78L Package information
46
7.7 SOT-89 packing information
Figure 26. SOT-89 carrier tape outline
Table 27. SOT-89 carrier tape dimensions
Dim. mm.
Values Tolerance
Ao 4.52 ± 0.10
Bo 4.91 ± 0.10
Ko 1.90 ± 0.10
F 5.50 ± 0.10
E 1.75 ± 0.10
W12± 0.30
P2 2 ± 0.10
Po 4 ± 0.10
P1 8 ± 0.10
T 0.30 ± 0.10
D Æ 1.55 ± 0.05
D1 Æ 1.60 ± 0.10
B(
Order codes L78L
42/46 DocID2145 Rev 24
8 Order codes
Table 28. Order codes
Part numbers Output
voltages
(V)
SO-8 TO-92 (Bag)
(1)
TO-92
(ammopack) TO-92
(tape and reel) SOT-89
L78L33ABD-TR L78L33ABZ-AP L78L33ABUTR 3.3
L78L33ACD13TR L78L33ACZ L78L33ACZ-AP L78L33ACZTR L78L33ACUTR 3.3
L78L33CD-TR 3.3
L78L05ABD13TR L78L05ABZ L78L05ABZ-AP L78L05ABZ-TR L78L05ABUTR 5
L78L05ACD13TR L78L05ACZ L78L05ACZ-AP L78L05ACZTR L78L05ACUTR 5
L78L05CD13TR L78L05CZ 5
L78L06ABZ L78L06ABUTR 6
L78L06ACD13TR L78L06ACUTR 6
L78L08ABD13TR L78L08ABZ-AP L78L08ABZTR L78L08ABUTR 8
L78L08ACD13TR L78L08ACZ L78L08ACZ-AP L78L08ACZTR L78L08ACUTR 8
L78L08CD13TR 8
L78L09ABD13TR L78L09ABZ L78L09ABUTR 9
L78L09ACD13TR L78L09ACZ-AP L78L09ACZ-TR L78L09ACUTR 9
L78L09CD13TR 9
L78L10ACUTR 10
L78L12ABD-TR L78L12ABZ L78L12ABZ-AP L78L12ABUTR 12
L78L12ACD13TR L78L12ACZ L78L12ACZ-AP L78L12ACZ-TR L78L12ACUTR 12
L78L12CD13TR 12
L78L15ABZ-AP L78L15ABUTR 15
L78L15ACD13TR L78L15ACZ L78L15ACUTR 15
L78L15CD-TR 15
L78L18ACUTR 18
L78L18CD13TR 18
L78L24ABZ-TR 24
L78L24ACZ-AP L78L24ACUTR 24
L78L24CD-TR 24
1. Available in Ammopak with the suffix "-AP" or in tape and reel with the suffix "TR". Please note that in these cases pins are
shaped according to tape and reel specifications.
DocID2145 Rev 24 43/46
L78L Order codes
46
Tabl e 29. Ma rki ng infor mat ion
Part numbers Marking Packages Output voltages
L78L05ABD 1 3TR 78L05B SO-8 5 V
L78L05ABUTR 8C SOT-89 5 V
L78L05ABZ L78L05A T O-92 5 V
L78L05ABZ-AP L78L 05A TO-92 5 V
L78L05ABZ-TR L78L05A TO-92 5 V
L78L05AC D13 TR L78L05A SO-8 5 V
L78L05 ACUT R 8 C SO T-89 5 V
L78L05ACZ L78L 05A TO-92 5 V
L78L05AC Z-AP L78L05A TO-92 5 V
L78L05AC Z TR L78L05A TO-92 5 V
L78L05C D13TR 78L05 S O-8 5 V
L78L05C Z L78L05A TO-92 5 V
L78L06ABUTR 8E SOT-89 6 V
L78L06ABZ L78L06A TO-92 6 V
L78L06AC D13 TR L78L06A SO-8 6 V
L78L06 ACUT R 8E SOT-89 6 V
L78L08ABD 1 3TR 78L08B SO-8 8 V
L78L08ABUTR 8 G SOT-89 8 V
L78L08ABZ-AP L78L08A TO-92 8 V
L78L08ABZ TR L78L08A TO-92 8 V
L78L08AC D13 TR 78L08A SO-8 8 V
L78L08 ACUT R 8G SOT-89 8 V
L78L08ACZ L78L 08A TO-92 8 V
L78L08AC Z-AP L78L08A TO-92 8 V
L78L08AC Z TR L78L08A TO-92 8 V
L78L08C D13TR 78L08 S O-8 8 V
L78L09ABD 1 3TR 78L09B SO-8 8 V
L78L09ABZ L78L09A TO-92 9 V
L78L09ABUTR 8H SOT-89 9 V
L78L09AC D13 TR 78L09A SO8 9 V
L78L09 ACUT R 8H SOT-89 9 V
L78L09AC Z-AP L78L09A TO-92 9 V
L78L09AC Z-TR L78L09A TO-92 9 V
L78L09C D13 TR L 78L 09A SO-8 9 V
L78L10ACUTR 8I SOT-89 10 V
Order codes L78L
44/46 DocID2145 Rev 24
L78L12ABD-TR 78L12B SO-8 12 V
L78L12ABUTR 8K SOT-89 12 V
L78L12ABZ L78L12A TO-92 12 V
L78L12ABZ-AP L78L12A TO 92 12 V
L78L12ACD13TR 78L12A SO-8 12 V
L78L12ACUTR 8K SOT-89 12 V
L78L12ACZ L78L12A TO-92 12 V
L78L12ACZ-AP L78L12A TO-92 12 V
L78L12ACZ-TR L78L12A TO-92 12 V
L78L12CD13TR 78L12 SO-8 12 V
L78L15ABUTR 8L SOT-89 15 V
L78L15ABZ-AP L78L15A TO-92 15 V
L78L15ACD13TR 78L15A SO-8 15 V
L78L15ACUTR 8L SOT-89 15 V
L78L15ACZ L78L15A TO-92 15 V
L78L15CD-TR 78L15 SO-8 15 V
L78L18ACUTR 8B SOT-89 18 V
L78L18C D13TR L78L18 S O-8 18 V
L78L24ABZ-TR L78L24A TO-92 24 V
L78L24ACUTR 8P SOT-89 24 V
L78L24ACZ-AP L78L24A TO-92 24 V
L78L24CD-TR 78L24 SO-8 24 V
L78L33ABD-TR 78L33B SO-8 3.3 V
L78L33ABUTR 8A SOT-89 3.3 V
L78L33ABZ-AP L78L33A TO-92 3.3 V
L78L33ACD13TR 78L33A SO-8 3.3 V
L78L33ACUTR 8A SOT-89 3.3 V
L78L33ACZ L78L33A TO-92 3.3 V
L78L33ACZ-AP L78L33A TO-92 3.3 V
L78L33ACZTR L78L33A TO-92 3.3 V
Table 29. Marking information (continued)
Part numbers Marking Packages Output voltages
DocID2145 Rev 24 45/46
L78L Revision history
46
9 Revision history
Table 30. Document revision history
Date Revision Changes
14-Mar-2005 9 Add tape and reel for TO-92.
15-Mar-2005 10 Add note on Table 3.
23-Dec-2005 11 Mistake on ordering Table in header.
12-Sep-2006 12 Order codes updated.
07-Jun-2007 13 Order codes updated.
18-Sep-2007 14 Added Table 1 in cover page.
15-Jul-2008 15 Modified: Table 1 and Table 28: Order codes.
18-Aug-2008 16 Modified Figure 12 on pag e 26.
03-Apr-2009 17 Added: R
thJA
value for SOT-89 Table 2 on page 5.
08-Feb-2011 18 Added note Table 26 on page 39
21-Feb-2012 19 Modified: SOT-89 Figure 2 on page 4.
14-Aug-2012 20 Updated T
OP
value for L78L00 AC in Tabl e 1 on page 5.
Minor text chan ges .
07-Sep-2012 21 Added: Table 29: Marking information.
14-Apr-2014 22
Part numbers L78LxxAB, L78LxxAC, L78LxxC changed to L78L.
Removed Table1: Device summary.
Updated features and description in cover page, Table 28: Order
codes, Table 29: Marki ng information and Section 7: Package
information.
Added Section : Packaging mechanical data.
Minor text chan ges .
06-Oct-2014 23 Updated Table 28: Order codes and Table 29: Marking informa tio n.
Minor text chan ges .
10-Feb-2015 24 Updated Table 29: Mark in g info rma tion.
Minor text chan ges .
L78L
46/46 DocID2145 Rev 24
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