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A78L00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS010D – JANUARY 1976 – REVISED OCTOBER 1995
m
•
3-Terminal Regulators
D PACKAGE
(TOP VIEW)
•
Output Current Up to 100 mA
•
No External Components
OUTPUT
COMMON
COMMON
NC
1
2
3
4
8
7
6
5
INPUT
COMMON
COMMON
NC
•
Internal Thermal Overload Protection
•
Internal Short-Circuit Current Limiting
•
Direct Replacements for Fairchild
m
A78L00
Series
description
NC–No internal connection
LP PACKAGE
(TOP VIEW)
This series of fixed-voltage monolithic integrated-
circuit voltage regulators is designed for a wide
range of applications. These applications include
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. One of these regulators can
deliver up to 100 mA of output current. The internal
limiting and thermal shutdown features of these
regulators make them essentially immune to overload. When used as a replacement for a zener diode-resistor
combination, an effective improvement in output impedance can be obtained together with lower-bias current.
INPUT
COMMON
OUTPUT
TO-226AA
AVAILABLE OPTIONS
PACKAGED DEVICES
PLASTIC DIP
(D)
PLASTIC CYLINDRICAL
(LP)
V O(nom)
(V)
CHIP FORM
(Y)
T J
J
(V)
(Y)
OUTPUT VOLTAGE TOLERANCE
5%
10%
5%
10%
2.6
5
6.2
8
9
10
12
15
A78L06ACD
m A78L08ACD
m
A78L06CD
m A78L08CD
m
A78L06ACLP
m A78L08ACLP
m
A78L06CLP
m A78L08CLP
m
A78L06Y
m A78L08Y
m
0 ° C to 125 ° C
A78L09ACD
m A78L10ACD
m A78L12ACD
m
A78L09CD
m A78L10CD
m A78L12CD
m
A78L09ACLP
m A78L10ACLP
m A78L12ACLP
m
A78L09CLP
m A78L10CLP
m A78L12CLP
m
A78L09Y
m A78L10Y
m A78L12Y
m
A78L15ACD
A78L15CD
A78L15ACLP
A78L15CLP
A78L15Y
–40
°
C to 125
C
5
12
A78L05AQD
m A78L12AQD
A78L05QD
m A78L12QD
m
A78L05QLP
m A78L12QLP
A78L05QLP
m A78L12QLP
—
—
D and LP packages are available taped and reeled. Add R suffix to devise type (e.g.,
m
A78L05ACDR).
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
W
1995, Texas Instruments Incorporated
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3–1
V
CHIP FORM
T
m A78L02ACD
m A78L05ACD
m
m A78L02CD
m A78L05CD
m
m A78L02ACLP
m A78L05ACLP
m
m A78L02CLP
m A78L05CLP
m
m A78L02Y
m A78L05Y
m
m
m
m
°
104209266.012.png 104209266.013.png
A78L00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS010D – JANUARY 1976 – REVISED OCTOBER 1995
schematic
INPUT
20 k
W
OUTPUT
1 k W to 14 k W
1.4 k W
COMMON
Resistor values shown are nominal.
3–2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
m
•
104209266.014.png 104209266.015.png 104209266.001.png 104209266.002.png 104209266.003.png 104209266.004.png
A78L00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS010D – JANUARY 1976 – REVISED OCTOBER 1995
m
m
A78xxY chip information
A78xxY. Thermal compression
or ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with
conductive epoxy or a gold-silicon preform.
m
BONDING PAD ASSIGNMENTS
(2)
INPUT
(8)
(1)
m A78Lxx
OUTPUT
(2)
COMMON
53
CHIP THICKNESS: 15 MILS TYPICAL
BONDING PADS: 4 × 4 MILS MINIMUM
(1)
T J max = 150 ° C
TOLERANCES ARE ± 10%.
ALL DIMENSIONS ARE IN MILS.
TERMINALS 2,3,6, AND 7 ARE
CONNECTED TOGETHER
TERMINALS 4 AND 5 ARE NOT
CONNECTED
(2)
(8)
(1)
45
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3–3
These chips, when properly assembled, display characteristics similar to the
104209266.005.png 104209266.006.png 104209266.007.png
A78L00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS010D – JANUARY 1976 – REVISED OCTOBER 1995
m
A78LxxC absolute maximum ratings over operating temperature range (unless otherwise noted)
m A78L02C, m A78L02AC
THROUGH
m A78L12C, m A78L12AC
m
m
A78L15AC
UNIT
m
A78L10C,
m
A78L10AC
Input voltage
30
35
V
Continuous total power dissipation (see Note 1)
See Dissipation Rating Tables 1 and 2
Operating free-air, T A , case, T C , or virtual junction, T J , temperature range
0 to 125
0 to 125
°
C
Storage temperature range, T stg
– 65 to 150
– 65 to 150
° C
C
NOTE 1: To avoid exceeding the design maximum virtual junction temperature, these ratings should not be exceeded. Due to variations in
individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power
levels slightly above or below the rated dissipation.
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
260
°
m
A78LxxQ absolute maximum ratings over operating temperature range (unless otherwise noted)
m A78L05Q, m A78L05AQ
m A78L12Q, m A78L12AQ
UNIT
Input voltage
30
35
V
Continuous total power dissipation (see Note 1)
See Dissipation Rating Tables 1 and 2
Operating free-air, T A , case, T C , or virtual junction, T J , temperature range
– 40 to 150
– 40 to 150
° C
Storage temperature range, T stg
– 65 to 150
– 65 to 150
°
C
° C
NOTE 1: To avoid exceeding the design maximum virtual junction temperature, these ratings should not be exceeded. Due to variations in
individual device electrical characteristics and thermal resistance, the built-in thermal overload protection may be activated at power
levels slightly above or below the rated dissipation.
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
260
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURE
PACKAGE
C
POWER RATING
3
25
°
DERATING
FACTOR
DERATE
ABOVE T A
C
POWER RATING
T A = 70
°
D
725 mW
5.8 mW/
°
C
25
°
C
464 mW
LP †
775 mW
6.2 mW/ ° C
25 ° C
496 mW
JA measured in still air with the
device mounted in an Augat socket. The bottom of the package is 10 mm (0.375 in) above the socket.
q
DISSIPATION RATING TABLE 2 – CASE TEMPERATURE
PACKAGE
T A 3 25 ° C
POWER RATING
DERATING
FACTOR
DERATE
ABOVE T C
T C = 125 ° C
POWER RATING
D
1600 mW
19.6 mW/
°
C
65
°
C
424 mW
LP
1600 mW
28.6 mW/ ° C
94 ° C
713 mW
3–4
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
m
A78L15C,
T A
† The LP package dissipation rating is based on thermal resistance R
104209266.008.png 104209266.009.png
A78L00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS010D – JANUARY 1976 – REVISED OCTOBER 1995
m
recommended operating conditions
MIN MAX UNIT
m A78L02C, m A78L02AC
4.75
20
A78L05AC,
m A78L05Q, m A78L05AQ
A78L05C,
m
7
20
m
A78L06C,
m
A78L06AC
8.5
20
m A78L08C, m A78L08AC
10.5
23
Input voltage, V I
l
l
V
V
V
m
A78L09C,
m
A78L09AC
11.5
24
m A78L10C, m A78L10AC
12.5
25
A78L12AC,
m A78L12Q, m A78L12AQ
A78L12C,
m
14.5
27
m
A78L15C,
m
A78L15AC
17.5
30
Output current, I O
100
mA
Operating virtual junction temperature, T J
m
A78LxxC thru
A78LxxAC
0
125
°
Operating virtual junction temperature T J
C
°
C
m A78LxxQ and m A78LxxAQ
–40
125
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
3–5
m
I
I
I
Input voltage V I
l
V
V
V
V
V
m
m
104209266.010.png 104209266.011.png

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