1
2
3
4
8
7
6
5
OUTPUT
INPUT
INPUT
NC
NC
INPUT
INPUT
COMMON
D PACKAGE
(TOP VIEW)
NC No internal connection
LP PACKAGE
(TOP VIEW)
Internally connected
OUTPUT
INPUT
COMMON
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011D OCTOBER 1982 REVISED AUGUST 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
3-Terminal Regulators
D
Output Current Up To 100 mA
D
No External Components Required
D
Internal Thermal-Overload Protection
D
Internal Short-Circuit Current Limiting
D
Direct Replacement for Industry-Standard
MC79L00 Series
D
Available in 5% or 10% Selections
description/ordering information
This series of fixed negative-voltage
integrated-circuit voltage regulators is designed
for a wide range of applications. These include
on-card regulation for elimination of noise and
distribution problems associated with single-point
regulation. In addition, they can be used to control series pass elements to make high-current voltage-regulator
circuits. One of these regulators can deliver up to 100 mA of output current. The internal current-limiting and
thermal-shutdown features essentially make the regulators immune to overload. When used as a replacement
for a Zener-diode and resistor combination, these devices can provide an effective improvement in output
impedance of two orders of magnitude, with lower bias current.
ORDERING INFORMATION
TJ
OUTPUT
VOLTAGE
TOLERANCE
NOMINAL
OUTPUT
VOLTAGE
(V)
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
0 C to 125 C
5%
5
SOIC (D)
Tube of 75
MC79L05ACD
79L05A
0 C to 125 C
5%
5
SOIC (D)
Reel of 2500
MC79L05ACDR
79L05A
0 C to 125 C
5%
5
TO-226 / TO-92 (LP)
Bulk of 1000
MC79L05ACLP
79L05AC
0 C to 125 C
5%
TO-226 / TO-92 (LP)
Reel of 2000
MC79L05ACLPR
79L05AC
0 C to 125 C
5%
12
SOIC (D)
Tube of 75
MC79L12ACD
79L12A
0 C to 125 C
5%
12
SOIC (D)
Reel of 2500
MC79L12ACDR
79L12A
0
C to 125
C
12
TO-226 / TO-92 (LP)
Bulk of 1000
MC79L12ACLP
79L12AC
TO-226 / TO-92 (LP)
Reel of 2000
MC79L12ACLPR
79L12AC
15
TO-226 / TO-92 (LP)
Bulk of 1000
MC79L15ACLP
79L15AC
15
TO-226 / TO-92 (LP)
Ammo of 2000
MC79L15ACLPM
79L15AC
Reel of 2000
MC79L15ACLPR
10%
12
TO-226 / TO-92 (LP)
Bulk of 1000
MC79L12CLP
79L12C
10%
15
SOIC (D)
Tube of 75
MC79L15CD
79L15C
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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.
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011D OCTOBER 1982 REVISED AUGUST 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
equivalent schematic
OUTPUT
INPUT
COMMON
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Input voltage: MC79L05
30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MC79L12, MC79L15
35 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Notes 1 and 2): D package
97
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LP package
140
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air, case, or virtual junction temperature
150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds
260
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. Maximum power dissipation is a function of TJ(max),
JA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) TA)/
JA. Operating at the absolute maximum TJ of 150
C can affect reliability.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
MIN
MAX
UNIT
V
Input voltage
MC79L05
7
20
V
VI
Input voltage
MC79L12
14.5
27
V
I
MC79L15
17.5
30
IO
Output current
100
mA
TJ
Operating virtual junction temperature
0
125
C
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011D OCTOBER 1982 REVISED AUGUST 2003
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
O
= 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
MC79L05C
MC79L05AC
UNIT
PARAMETER
TEST CONDITIONS
TJ
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
Output voltage
25
C
4.6
5
5.4
4.8
5
5.2
V
Output voltage
VI = 7 V to 20 V,
IO = 1 mA to 40 mA
0
C to 125
C
4.5
5.5
4.75
5.25
V
VI = 10 V, IO = 1 mA to 70 mA
0
C to 125
C
4.5
5.5
4.75
5.25
Input regulation
VI = 7 V to 20 V
25
C
200
150
mV
Input regulation
VI = 8 V to 20 V
25
C
150
100
mV
Ripple rejection
VI = 8 V to 18 V, f = 120 Hz
25
C
40
49
41
49
dB
Output regulation
IO = 1 mA to 100 mA
25
C
60
60
mV
Output regulation
IO = 1 mA to 40 mA
25
C
30
30
mV
Output noise voltage
f = 10 Hz to 100 kHz
25
C
40
40
V
Dropout voltage
IO = 40 mA
25
C
1.7
1.7
V
Bias current
25
C
6
6
mA
Bias current
125
C
5.5
5.5
mA
Bias current change
VI = 8 V to 20 V
0
C to 125
C
1.5
1.5
mA
Bias current change
IO = 1 mA to 40 mA
0
C to 125
C
0.2
0.1
mA
All characteristics are measured with a 0.33-
F capacitor across the input and a 0.1-
F capacitor across the output. Pulse-testing techniques are
used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
electrical characteristics at specified virtual junction temperature, V
I
= 19 V, I
O
= 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
MC79L12C
MC79L12AC
UNIT
PARAMETER
TEST CONDITIONS
TJ
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
Output voltage
25
C
11.1
12
12.9
11.5
12
12.5
V
Output voltage
VI = 14.5 V to 27 V,
IO = 1 mA to 40 mA
0
C to 125
C
10.8
13.2
11.4
12.6
V
VI = 19 V, IO = 1 mA to 70 mA
0
C to 125
C
10.8
13.2
11.4
12.6
Input regulation
VI = 14.5 V to 27 V
25
C
250
250
mV
Input regulation
VI = 16 V to 27 V
25
C
200
200
mV
Ripple rejection
VI = 15 V to 25 V, f = 120 Hz
25
C
36
42
37
42
dB
Output regulation
IO = 1 mA to 100 mA
25
C
100
100
mV
Output regulation
IO = 1 mA to 40 mA
25
C
50
50
mV
Output noise voltage
f = 10 Hz to 100 kHz
25
C
80
80
V
Dropout voltage
IO = 40 mA
25
C
1.7
1.7
V
Bias current
25
C
6.5
6.5
mA
Bias current
125
C
6
6
mA
Bias current change
VI = 16 V to 27 V
0
C to 125
C
1.5
1.5
mA
Bias current change
IO = 1 mA to 40 mA
0
C to 125
C
0.2
0.1
mA
All characteristics are measured with a 0.33-
F capacitor across the input and a 0.1-
F capacitor across the output. Pulse-testing techniques are
used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
MC79L00 SERIES
NEGATIVE-VOLTAGE REGULATORS
SLVS011D OCTOBER 1982 REVISED AUGUST 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 23 V, I
O
= 40 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
MC79L15C
MC79L15AC
UNIT
PARAMETER
TEST CONDITIONS
TJ
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
Output voltage
25
C
13.8
15
16.2
14.4
15
15.6
V
Output voltage
VI = 17.5 V to 30 V,
0
C to 125
C
13.5
16.5
14.25
15.75
V
Output voltage
VI = 17.5 V to 30 V,
IO = 1 mA to 40 mA
0
C to 125
C
13.5
16.5
14.25
15.75
V
VI = 23 V, IO = 1 mA to 70 mA
0
C to 125
C
13.5
16.5
14.25
15.75
VI = 23 V, IO = 1 mA to 70 mA
0
C to 125
C
13.5
16.5
14.25
15.75
Input regulation
VI = 17.5 V to 30 V
25
C
300
300
mV
Input regulation
VI = 17.5 V to 30 V
25
C
250
250
mV
Ripple rejection
VI = 18.5 V to 28.5 V, f = 120 Hz
25
C
33
39
34
39
dB
Ripple rejection
VI = 18.5 V to 28.5 V, f = 120 Hz
25
C
33
39
34
39
dB
Output regulation
IO = 1 mA to 100 mA
25
C
150
150
mV
Output regulation
IO = 1 mA to 40 mA
25
C
75
75
mV
Output noise voltage
f = 10 Hz to 100 kHz
25
C
90
90
V
Dropout voltage
IO = 40 mA
25
C
1.7
1.7
V
Bias current
25
C
6.5
6.5
mA
Bias current
125
C
6
6
mA
Bias current change
VI = 20 V to 30 V
0
C to 125
C
1.5
1.5
mA
Bias current change
IO = 1 mA to 40 mA
0
C to 125
C
0.2
0.1
mA
All characteristics are measured with a 0.33-
F capacitor across the input and a 0.1-
F capacitor across the output. Pulse-testing techniques are
used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package
Type
Package
Drawing
Pins Package
Qty
Eco Plan
(2)
Lead/Ball Finish
MSL Peak Temp
(3)
MC79L05ACD
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACDE4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACDG4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACDR
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACDRE4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACDRG4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L05ACLP
ACTIVE
TO-92
LP
3
1000
TBD
CU SNPB
Level-NC-NC-NC
MC79L05ACLPR
ACTIVE
TO-92
LP
3
2000
TBD
CU SNPB
Level-NC-NC-NC
MC79L05AILP
OBSOLETE
TO-92
LP
3
TBD
Call TI
Call TI
MC79L05CD
OBSOLETE
SOIC
D
8
TBD
Call TI
Call TI
MC79L05CDR
OBSOLETE
SOIC
D
8
TBD
Call TI
Call TI
MC79L05CLP
OBSOLETE
TO-92
LP
3
TBD
Call TI
Call TI
MC79L12ACD
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L12ACDE4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L12ACDR
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L12ACDRE4
ACTIVE
SOIC
D
8
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L12ACLP
ACTIVE
TO-92
LP
3
1000
TBD
CU SNPB
Level-NC-NC-NC
MC79L12ACLPR
ACTIVE
TO-92
LP
3
2000
TBD
CU SNPB
Level-NC-NC-NC
MC79L12CD
OBSOLETE
SOIC
D
8
TBD
Call TI
Call TI
MC79L12CLP
ACTIVE
TO-92
LP
3
1000
TBD
CU SNPB
Level-NC-NC-NC
MC79L15ACD
OBSOLETE
SOIC
D
8
TBD
Call TI
Call TI
MC79L15ACLP
ACTIVE
TO-92
LP
3
1000
TBD
CU SNPB
Level-NC-NC-NC
MC79L15ACLPM
ACTIVE
TO-92
LP
3
2000
TBD
CU SNPB
Level-NC-NC-NC
MC79L15ACLPR
ACTIVE
TO-92
LP
3
2000
TBD
CU SNPB
Level-NC-NC-NC
MC79L15CD
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L15CDE4
ACTIVE
SOIC
D
8
75
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
MC79L15CLP
OBSOLETE
TO-92
LP
3
TBD
Call TI
Call TI
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
PACKAGE OPTION ADDENDUM
www.ti.com
21-Jun-2005
Addendum-Page 1
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