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
SymbolParameterValueUnit
DC Input VoltageVO = 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, L78L00AC0 to 125
for L78L00AB-40 to 125
Table 2: Thermal Data
SymbolParameterSO-8TO-92SOT-89Unit
R
thj-case
R
thj-amb
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max
2015°C/W
55 (*)200°C/W
30
35
40
100mA
-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
TYPESO-8 (TUBE)*TO-92 (BAG)**SOT-89 (T&R)OUTPUT VOLTAGE
L78L33CL78L33CDL78L33CZ3.3 V
L78L33ACL78L33ACDL78L33ACZL78L33ACUTR3.3 V
L78L33ABL78L33ABDL78L33ABZL78L33ABUTR3.3 V
L78L05CL78L05CDL78L05CZ5 V
L78L05ACL78L05ACDL78L05ACZL78L05ACUTR5 V
L78L05ABL78L05ABDL78L05ABZL78L05ABUTR5 V
L78L06CL78L06CDL78L06CZ6 V
L78L06ACL78L06ACDL78L06ACZL78L06ACUTR6 V
L78L06ABL78L06ABDL78L06ABZL78L06ABUTR6 V
L78L08CL78L08CDL78L08CZ8 V
L78L08ACL78L08ACDL78L08ACZL78L08ACUTR8 V
L78L08ABL78L08ABDL78L08ABZL78L08ABUTR8 V
L78L09CL78L09CDL78L09CZ9 V
L78L09ACL78L09ACDL78L09ACZL78L09ACUTR9 V
L78L09ABL78L09ABDL78L09ABZL78L09ABUTR9 V
L78L10CL78L10CDL78L10CZ10 V
L78L10ACL78L10ACDL78L10ACZL78L10ACUTR10 V
L78L10ABL78L10ABDL78L10ABZL78L10ABUTR10 V
L78L12CL78L12CDL78L12CZ12 V
L78L12ACL78L12ACDL78L12ACZL78L12ACUTR12 V
L78L12ABL78L12ABDL78L12ABZL78L12ABUTR12 V
L78L15CL78L15CDL78L15CZ15 V
L78L15ACL78L15ACDL78L15ACZL78L15ACUTR15 V
L78L15ABL78L15ABDL78L15ABZL78L15ABUTR15 V
L78L18CL78L18CDL78L18CZ18 V
L78L18ACL78L18ACDL78L18ACZL78L18ACUTR18 V
L78L18ABL78L18ABDL78L18ABZL78L18ABUTR18 V
L78L20CL78L20CDL78L20CZ20 V
L78L20ACL78L20ACDL78L20ACZL78L20ACUTR20 V
L78L20ABL78L20ABDL78L20ABZL78L20ABUTR20 V
L78L24CL78L24CDL78L24CZ24 V
L78L24ACL78L24ACDL78L24ACZL78L24ACUTR24 V
L78L24ABL78L24ABDL78L24ABZL78L24ABUTR24 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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C3.0363.33.564V
O
V
Output VoltageIO = 1 to 40 mAVI = 5.3 to 20 V2.973.63V
O
= 1 to 70 mAVI = 8.3 V2.973.63
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 5.3 to 20 VTJ = 25°C150mV
O
= 6.3 to 20 VTJ = 25°C100
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C60mV
O
= 1 to 40 mATJ = 25°C30
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
= 125°C5.5mA
T
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
V
= 6.3 to 20 V1.5
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 6.3 to 16.3 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C40µV
J
4149dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C4.655.4V
O
Output VoltageIO = 1 to 40 mAVI =7 to 20 V4.55.5V
V
O
= 1 to 70 mAVI = 10 V4.55.5
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 8.5 to 20 VTJ = 25°C200mV
O
= 9 to 20 VTJ = 25°C150
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C60mV
O
= 1 to 40 mATJ = 25°C30
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
T
= 125°C5.5mA
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
= 8 to 20 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 9 to 20 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
V
Dropout Voltage1.7V
d
= 25°C40µV
J
4049dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C5.5266.48V
O
V
Output VoltageIO = 1 to 40 mAVI =8.5 to 20 V5.46.6V
O
= 1 to 70 mAVI = 12 V5.46.6
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 8.5 to 20 VTJ = 25°C200mV
O
= 9 to 20 VTJ = 25°C150
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C60mV
O
= 1 to 40 mATJ = 25°C30
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
= 125°C5.5mA
T
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
V
= 8 to 20 V1.5
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 9 to 20 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C50µV
J
3846dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C7.3688.64V
O
Output VoltageIO = 1 to 40 mAVI =10.5 to 23 V7.28.8V
V
O
= 1 to 70 mAVI = 14 V7.28.8
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 10.5 to 23 VTJ = 25°C200mV
O
= 11 to 23 VTJ = 25°C150
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C80mV
O
= 1 to 40 mATJ = 25°C40
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
T
= 125°C5.5mA
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
= 11 to 23 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 12 to 23 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
V
Dropout Voltage1.7V
d
= 25°C60µV
J
3645dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C8.2899.72V
O
Output VoltageIO = 1 to 40 mAVI =11.5 to 23 V8.19.9V
V
O
= 1 to 70 mAVI = 15 V8.19.9
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 11.5 to 23 VTJ = 25°C250mV
O
= 12 to 23 VTJ = 25°C200
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C80mV
O
= 1 to 40 mATJ = 25°C40
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
T
= 125°C5.5mA
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
= 12 to 23 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 12 to 23 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C70µV
J
3644dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C9.2101 0.8V
O
V
Output VoltageIO = 1 to 40 mAVI =12.5 to 23 V911V
O
= 1 to 70 mAVI = 16 V911
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 12.5 to 23 VTJ = 25°C230mV
O
= 13 to 23 VTJ = 25°C170
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C80mV
O
= 1 to 40 mATJ = 25°C40
I
O
Quiescent CurrentTJ = 25°C6mA
I
d
= 125°C5.5mA
T
J
Quiescent Current Change IO = 1 to 40 mA0.1mA
∆I
d
V
= 13 to 23 V1.5
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 14 to 23 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C60µV
J
3745dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C11.11212.9V
O
V
Output VoltageIO = 1 to 40 mAVI =14.5 to 27 V10.813.2V
O
= 1 to 70 mAVI = 19 V10.813.2
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 14.5 to 27 VTJ = 25°C250mV
O
= 16 to 27 VTJ = 25°C200
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C100mV
O
= 1 to 40 mATJ = 25°C50
I
O
Quiescent CurrentTJ = 25°C6.5mA
I
d
= 125°C6mA
T
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
V
= 16 to 27 V1.5
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 15 to 25 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C80µV
J
3642dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C13.81516.2V
O
Output VoltageIO = 1 to 40 mAVI =17.5 to 30 V13.516.5V
V
O
= 1 to 70 mAVI = 23 V13.516.5
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 17.5 to 30 VTJ = 25°C300mV
O
= 20 to 30 VTJ = 25°C250
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C150mV
O
= 1 to 40 mATJ = 25°C75
I
O
Quiescent CurrentTJ = 25°C6.5mA
I
d
T
= 125°C6mA
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
= 20 to 30 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 18.5 to 28.5 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
V
Dropout Voltage1.7V
d
= 25°C90µV
J
3339dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C16.61819.4V
O
Output VoltageIO = 1 to 40 mAVI = 22 to 33 V16.219.8V
V
O
= 1 to 70 mAVI = 27 V16.219.8
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 22 to 33 VTJ = 25°C320mV
O
= 22 to 33 VTJ = 25°C270
V
I
Load RegulationIO = 1 to 100 mATJ = 25°C170mV
O
= 1 to 40 mATJ = 25°C85
I
O
Quiescent CurrentTJ = 25°C6.5mA
I
d
T
= 125°C6mA
J
Quiescent Current Change IO = 1 to 40 mA0.2mA
∆I
d
= 23 to 33 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 23 to 33 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C120µV
J
3238dB
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
SymbolParameterTest ConditionsMin.Typ.Max.Unit
V
Output VoltageTJ = 25°C18.42021.6V
O
Output VoltageIO = 1 to 40 mAVI = 24 to 33 V1822V
V
O
= 1 to 70 mAVI = 29 V1822
I
O
∆V
∆V
SVRSupply Voltage RejectionV
Line RegulationVI = 22.5 to 34 VTJ = 25°C330mV
O
V
= 24 to 34 VTJ = 25°C280
I
Load RegulationIO = 1 to 100 mATJ = 25°C180mV
O
= 1 to 40 mATJ = 25°C90
I
O
Quiescent CurrentTJ = 25°C6.5mA
I
d
= 125°C6mA
T
J
∆I
Quiescent Current Change IO = 1 to 40 mA0.2mA
d
= 25 to 33 V1.5
V
I
eNOutput Noise VoltageB =10Hz to 100KHzT
= 25 to 35 Vf = 120Hz
I
I
= 40 mATJ = 25°C
O
Dropout Voltage1.7V
V
d
= 25°C120µV
J
3138dB
8/26
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