L78L00
SERIES
POSITIVE VOLTAGE REGULATORS
■ OUTPUT CURRENT UP TO 100 mA
■ OUTPUT VOLTAGES OF 3.3; 5; 6; 8; 9; 10;
12; 15; 18; 20; 24V
■ THERMAL OVERLOAD PROTECTION
■ SHORT CIRCUIT PROTECTION
■ NO EXTERNAL COMPONENTS ARE
REQUIRED
■ AVAILABLE IN EITHER ±5% (AC) OR ±10%
(C) SELECTION
DESCRIPTION
The L78L00 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 d istribution
problems associated with single-point reg ulation.
In addition, they can be used with power pass
elements to make high-current voltage regulators.
The L78L00 series used as Zener diod e/resistor
combination replacement, offers an effective
output impedance improvement of typically two
TO-92
SOT-89SO-8
orders of magnitude, along with lower quiescent
current and lower noise.
Figure 1: Schematic Diagram
Rev. 11
1/26December 2005
L78L00 SERIES
Table 1: Absolute Maximum Ratings
Symbol Parameter Value Unit
DC Input Voltage VO = 3.3 to 9 V
V
I
I
P
T
T
(*) Our SO -8 package used for Volta ge Regulators is modifi ed i nt ernally to have pins 2, 3, 6 and 7 el ectrically commune d to the die attach
flag. This particular frame 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.
Output Current
O
Power Dissipation
tot
Storage Temperature Range
stg
Operating Junction T emperature
op
Range
= 12 to 15 V
V
O
V
= 18 to 24 V
O
Internally Limited (*)
for L78L00C, L78L00AC 0 to 125
for L78L00AB -40 to 125
Table 2: Thermal Data
Symbol Parameter SO-8 TO-92 SOT-89 Unit
R
thj-case
R
thj-amb
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max
20 15 °C/W
55 (*) 200 °C/W
30
35
40
100 mA
-40 to 150 °C
°C
V
(*) Cons i d ering 6 cm2 of copper Bo ard heat-sin k
Figure 2: Test Circuits
Figure 3: Pin Connecti on (top view, bottom view for TO-92)
PIN 1 = V
PIN 2 = GND
PIN 3 = V
OUT
IN
2/26
SOT-89SO-8
TO-92
Table 3: Order Codes
TYPE SO-8 (TUBE)* TO-92 (BAG)** SOT-89 (T&R) OUTPUT VOLTAGE
L78L33C L78L33CD L78L33CZ 3.3 V
L78L33AC L78L33ACD L78L33ACZ L78L33ACUTR 3.3 V
L78L33AB L78L33ABD L78L33ABZ L78L33ABUTR 3.3 V
L78L05C L78L05CD L78L05CZ 5 V
L78L05AC L78L05ACD L78L05ACZ L78L05ACUTR 5 V
L78L05AB L78L05ABD L78L05ABZ L78L05ABUTR 5 V
L78L06C L78L06CD L78L06CZ 6 V
L78L06AC L78L06ACD L78L06ACZ L78L06ACUTR 6 V
L78L06AB L78L06ABD L78L06ABZ L78L06ABUTR 6 V
L78L08C L78L08CD L78L08CZ 8 V
L78L08AC L78L08ACD L78L08ACZ L78L08ACUTR 8 V
L78L08AB L78L08ABD L78L08ABZ L78L08ABUTR 8 V
L78L09C L78L09CD L78L09CZ 9 V
L78L09AC L78L09ACD L78L09ACZ L78L09ACUTR 9 V
L78L09AB L78L09ABD L78L09ABZ L78L09ABUTR 9 V
L78L10C L78L10CD L78L10CZ 10 V
L78L10AC L78L10ACD L78L10ACZ L78L10ACUTR 10 V
L78L10AB L78L10ABD L78L10ABZ L78L10ABUTR 10 V
L78L12C L78L12CD L78L12CZ 12 V
L78L12AC L78L12ACD L78L12ACZ L78L12ACUTR 12 V
L78L12AB L78L12ABD L78L12ABZ L78L12ABUTR 12 V
L78L15C L78L15CD L78L15CZ 15 V
L78L15AC L78L15ACD L78L15ACZ L78L15ACUTR 15 V
L78L15AB L78L15ABD L78L15ABZ L78L15ABUTR 15 V
L78L18C L78L18CD L78L18CZ 18 V
L78L18AC L78L18ACD L78L18ACZ L78L18ACUTR 18 V
L78L18AB L78L18ABD L78L18ABZ L78L18ABUTR 18 V
L78L20C L78L20CD L78L20CZ 20 V
L78L20AC L78L20ACD L78L20ACZ L78L20ACUTR 20 V
L78L20AB L78L20ABD L78L20ABZ L78L20ABUTR 20 V
L78L24C L78L24CD L78L24CZ 24 V
L78L24AC L78L24ACD L78L24ACZ L78L24ACUTR 24 V
L78L24AB L78L24ABD L78L24ABZ L78L24ABUTR 24 V
L78L00 SERIES
(*) Avai l abl e in Tape & Reel with the s uffix "13T R".
(**) Avai l able in Ammopak with the s uf fix "-AP" or in Tape & Reel wi th the suffix "TR " . Please note that in these c ases pins are shaped
accordi ng to Tape & Reel specifications.
3/26
L78L00 SERIES
Table 4: Electrical Characteristics Of L78L33C (refer to the test circuits, TJ = 0 to 125°C, VI = 8.3V,
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 3.036 3.3 3.564 V
O
V
Output Voltage IO = 1 to 40 mA VI = 5.3 to 20 V 2.97 3.63 V
O
= 1 to 70 mA VI = 8.3 V 2.97 3.63
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 5.3 to 20 V TJ = 25°C 150 mV
O
= 6.3 to 20 V TJ = 25°C 100
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 60 mV
O
= 1 to 40 mA TJ = 25°C 30
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
= 125°C 5.5 mA
T
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
V
= 6.3 to 20 V 1.5
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 6.3 to 16.3 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 40 µV
J
41 49 dB
Table 5: Electrical Characteristics Of L78L05C (refer to the test circuits, T
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
= 0 to 125°C, VI = 10V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 4.6 5 5.4 V
O
Output Voltage IO = 1 to 40 mA VI =7 to 20 V 4.5 5.5 V
V
O
= 1 to 70 mA VI = 10 V 4.5 5.5
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 8.5 to 20 V TJ = 25°C 200 mV
O
= 9 to 20 V TJ = 25°C 150
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 60 mV
O
= 1 to 40 mA TJ = 25°C 30
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
T
= 125°C 5.5 mA
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
= 8 to 20 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 9 to 20 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
V
Dropout Voltage 1.7 V
d
= 25°C 40 µV
J
40 49 dB
4/26
L78L00 SERIES
Table 6: Electrical Characteristics Of L78L06C (refer to the test circuits, TJ = 0 to 125°C, VI = 12V,
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 5.52 6 6.48 V
O
V
Output Voltage IO = 1 to 40 mA VI =8.5 to 20 V 5.4 6.6 V
O
= 1 to 70 mA VI = 12 V 5.4 6.6
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 8.5 to 20 V TJ = 25°C 200 mV
O
= 9 to 20 V TJ = 25°C 150
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 60 mV
O
= 1 to 40 mA TJ = 25°C 30
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
= 125°C 5.5 mA
T
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
V
= 8 to 20 V 1.5
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 9 to 20 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 50 µV
J
38 46 dB
Table 7: Electrical Characteristics Of L78L08C (refer to the test circuits, T
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
= 0 to 125°C, VI = 14V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 7.36 8 8.64 V
O
Output Voltage IO = 1 to 40 mA VI =10.5 to 23 V 7.2 8.8 V
V
O
= 1 to 70 mA VI = 14 V 7.2 8.8
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 10.5 to 23 V TJ = 25°C 200 mV
O
= 11 to 23 V TJ = 25°C 150
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 80 mV
O
= 1 to 40 mA TJ = 25°C 40
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
T
= 125°C 5.5 mA
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
= 11 to 23 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 12 to 23 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
V
Dropout Voltage 1.7 V
d
= 25°C 60 µV
J
36 45 dB
5/26
L78L00 SERIES
Table 8: Electrical Characteristics Of L78L09C (refer to the test circuits, TJ = 0 to 125°C, VI = 15V,
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 8.28 9 9.72 V
O
Output Voltage IO = 1 to 40 mA VI =11.5 to 23 V 8.1 9.9 V
V
O
= 1 to 70 mA VI = 15 V 8.1 9.9
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 11.5 to 23 V TJ = 25°C 250 mV
O
= 12 to 23 V TJ = 25°C 200
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 80 mV
O
= 1 to 40 mA TJ = 25°C 40
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
T
= 125°C 5.5 mA
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
= 12 to 23 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 12 to 23 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 70 µV
J
36 44 dB
Table 9: Electrical Characteristics Of L78L10C (refer to the test circuits, T
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
= 0 to 125°C, VI = 16V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 9.2 10 1 0.8 V
O
V
Output Voltage IO = 1 to 40 mA VI =12.5 to 23 V 9 11 V
O
= 1 to 70 mA VI = 16 V 9 11
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 12.5 to 23 V TJ = 25°C 230 mV
O
= 13 to 23 V TJ = 25°C 170
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 80 mV
O
= 1 to 40 mA TJ = 25°C 40
I
O
Quiescent Current TJ = 25°C 6 mA
I
d
= 125°C 5.5 mA
T
J
Quiescent Current Change IO = 1 to 40 mA 0.1 mA
∆I
d
V
= 13 to 23 V 1.5
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 14 to 23 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 60 µV
J
37 45 dB
6/26
L78L00 SERIES
Table 10: Electrical Characteristics Of L78L12C (re fe r to the te s t circu its, TJ = 0 to 125°C, VI = 19V,
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 11.1 12 12.9 V
O
V
Output Voltage IO = 1 to 40 mA VI =14.5 to 27 V 10.8 13.2 V
O
= 1 to 70 mA VI = 19 V 10.8 13.2
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 14.5 to 27 V TJ = 25°C 250 mV
O
= 16 to 27 V TJ = 25°C 200
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 100 mV
O
= 1 to 40 mA TJ = 25°C 50
I
O
Quiescent Current TJ = 25°C 6.5 mA
I
d
= 125°C 6 mA
T
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
V
= 16 to 27 V 1.5
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 15 to 25 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 80 µV
J
36 42 dB
Table 11: Electrical Characteristics Of L78L15C (re fe r to the te s t circu its, T
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
= 0 to 125°C, VI = 23V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 13.8 15 16.2 V
O
Output Voltage IO = 1 to 40 mA VI =17.5 to 30 V 13.5 16.5 V
V
O
= 1 to 70 mA VI = 23 V 13.5 16.5
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 17.5 to 30 V TJ = 25°C 300 mV
O
= 20 to 30 V TJ = 25°C 250
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 150 mV
O
= 1 to 40 mA TJ = 25°C 75
I
O
Quiescent Current TJ = 25°C 6.5 mA
I
d
T
= 125°C 6 mA
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
= 20 to 30 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 18.5 to 28.5 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
V
Dropout Voltage 1.7 V
d
= 25°C 90 µV
J
33 39 dB
7/26
L78L00 SERIES
Table 12: Electrical Characteristics Of L78L18C (re fe r to the te s t circu its, TJ = 0 to 125°C, VI = 27V,
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).
I
O
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 16.6 18 19.4 V
O
Output Voltage IO = 1 to 40 mA VI = 22 to 33 V 16.2 19.8 V
V
O
= 1 to 70 mA VI = 27 V 16.2 19.8
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 22 to 33 V TJ = 25°C 320 mV
O
= 22 to 33 V TJ = 25°C 270
V
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 170 mV
O
= 1 to 40 mA TJ = 25°C 85
I
O
Quiescent Current TJ = 25°C 6.5 mA
I
d
T
= 125°C 6 mA
J
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
∆I
d
= 23 to 33 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 23 to 33 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 120 µV
J
32 38 dB
Table 13: Electrical Characteristics Of L78L20C (re fe r to the te st circ u its, T
= 40 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified)
I
O
= 0 to 125°C, VI = 29V,
J
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
Output Voltage TJ = 25°C 18.4 20 21.6 V
O
Output Voltage IO = 1 to 40 mA VI = 24 to 33 V 18 22 V
V
O
= 1 to 70 mA VI = 29 V 18 22
I
O
∆V
∆V
SVR Supply Voltage Rejection V
Line Regulation VI = 22.5 to 34 V TJ = 25°C 330 mV
O
V
= 24 to 34 V TJ = 25°C 280
I
Load Regulation IO = 1 to 100 mA TJ = 25°C 180 mV
O
= 1 to 40 mA TJ = 25°C 90
I
O
Quiescent Current TJ = 25°C 6.5 mA
I
d
= 125°C 6 mA
T
J
∆I
Quiescent Current Change IO = 1 to 40 mA 0.2 mA
d
= 25 to 33 V 1.5
V
I
eN Output Noise Voltage B =10Hz to 100KHz T
= 25 to 35 V f = 120Hz
I
I
= 40 mA TJ = 25°C
O
Dropout Voltage 1.7 V
V
d
= 25°C 120 µV
J
31 38 dB
8/26
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