MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
3-TERMINAL 0.1A POSITIVE VOLTAGE
REGULATORS
The MC78LXX series of fixed voltage monolithic integrated circuit
voltage regulators are suitable for application that required supply
up to 100mA.
FEATURES
• Maximum Output Current of 100mA
• Output Voltage of 5V, 6V, 8V, 9V, 10V, 12V, 15V, 18V and 24V
• Thermal Overload Protection
• Short Circuit Current Limiting
• Output Voltage Offered in ± 5% Tolerance
ORDERING INFORMATION
BLOCK DIAGRAM
VI3
2GND V0
1
I
RSC
REFERENCE VOLTAGE
SHORT CIRCUIT
PROTECTION
THERMAL SHUTDOWN
CIRCUIT
+
-
Device Package Operating Temperature
MC78LXXACP (LM78LXXACZ) (KA78LXXAZ) TO-92 - 45 ~ + 125°C °
MC78LXXACD (KA78LXXAD) 8 SOP 0 ~ + 125°C
TO-92
1: Output 2: GND 3: Input
8 SOP
1: Output 2: GND 3: GND 4: NC
5: NC 6: GND 7: GND 8: Input
1999 Fairchild Semiconductor Corporation
Rev. C
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C, unless otherwise specified)
Characteristic Symbol Value Unit
Input Voltage (for VO = 5V, 8V)
(for VO = 12V, 15V) VI30
35 V
V
Operating Junction Temperature Range TJ0 ~ +150 °C
Storage Temperature Range TSTG -65 ~ +150 °C
LM78L05 ELECTRICAL CHARACTERISTICS
(VI = 10V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C4.8 5.0 5.2 V
7V ≤ VI ≤ 20V 8 150 mV
8V ≤ VI ≤ 20V 6 100 mV
1mA ≤ IO ≤ 100mA 11 60 mV
1mA ≤ IO ≤ 40mA 5.0 30 mV
7V ≤VI ≤ 0V 1mA ≤ IO ≤ 40mA 5.25 V
Output Voltage VO7V ≤VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 4.75 5.25 V
Quiescent Current IQTJ = 25 °C2.0 5.5 mA
Quiescent Current with line ∆IQ8V ≤VI ≤ 20V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40 mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 40 µV/VO
Temperature Coefficient of VOIO = 5mA -0.65 mV/ °C
Ripple Rejection RR f = 120Hz, 8V ≤ VI ≤ 18V, TJ = 25 °C41 80 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Line Regulation
∆
VOTJ = 25
°
C
TJ = 25
°
C
∆
VO
Load Regulation
∆
VO/
∆
T
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
LM78L06 ELECTRICAL CHARACTERISTICS
(VI = 12V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C , CI = 0.33µF, CO = 0.1µF, unless otherwise specified. (Note 1)
LM78L08 ELECTRICAL CHARACTERISTICS
(VI = 14V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C5.75 6.0 6.25 V
8.5V < VI < 20V 64 175 mV
9V ≥ VI ≥ 20V 54 125 mV
1mA < IO < 100mA 12.8 80 mV
1mA < IO < 70mA 5.8 40 mV
8.5 < VI < 20V, 1mA < IO < 40mA 5.7 6.3
8.5 < VI < VMAX(Note), 1mA < IO < 70mA 5.7 6.3
TJ = 25 °C3.9 6.0
TJ = 125 °C5.5
Quiescent Current with line ∆IQ9 < VI < 20V 1.5
Change with load ∆IQ1mA < IO< 40mA 0.1
Output Noise Voltage VNTA = 25 °C, 10Hz < f < 100KHz 40 µV/VO
Temperature Coefficient of VOIO = 5mA 0.75 mV/ °C
Ripple Rejection RR f = 120Hz, 10V < VI < 20V, TJ = 25 °C40 46 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C7.7 8.0 8.3 V
10.5V ≤ VI ≤ 23V 10 175 mV
11V ≤ VI ≤ 23V 8 125 mV
1mA ≤ IO ≤ 100mA 15 80 mV
1mA ≤ IO ≤ 40mA 8.0 40 mV
10.5V ≤ VI ≤ 23V 1mA ≤ IO ≤ 40mA 7.6 8.4 V
Output Voltage VO10.5V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 7.6 8.4 V
Quiescent Current IQTJ = 25 °C2.0 5.5 mA
Quiescent Current with line ∆IQ11V ≤ VI ≤ 23V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤100KHz 60 µV/VO
Temperature Coefficient of VOIO = 5mA -0.8
Ripple Rejection RR f = 120Hz, 11V ≤ VI ≤ 21V, TJ = 25 °C39 70 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Line Regulation
Line Regulation
∆
VO
∆
VO
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
∆
VO
∆
VO
Load Regulation
Load Regulation
∆
VO/
∆
T
∆
VO/
∆
T
Output Voltage VOV
mA
mA
Quiescent Current IQ
mV/
°
C
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
LM78L09 ELECTRICAL CHARACTERISTICS
(VI = 15V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
LM78L10 ELECTRICAL CHARACTERISTICS
(VI = 16V, IO = 40mA, 0 °C < TJ < 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C8.64 9.0 9.36 V
11.5V ≤ VI ≤ 24V 90 200 mV
13V ≤ VI ≤ 24V 100 150 mV
1mA ≤ IO ≤ 100mA 20 90 mV
1mA ≤ IO ≤ 40mA 10 45 mV
11.5V ≤ VI ≤ 24V 1mA ≤ IO ≤ 40mA 8.55 9.45 V
Output Voltage VO11.5V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 8.55 9.45 V
Quiescent Current IQTJ = 25 °C2.1 6.0 mA
Quiescent Current with line ∆IQ13V ≤ VI ≤ 24V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 70 µV/VO
Temperature Coefficient of VOIO = 5mA -0.9
Ripple Rejection RR f = 120Hz, 12V ≤ VI ≤ 22V, TJ = 25 °C38 44 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C9.6 10.0 10.4 V
12.5 < VI < 25V 100 220 mV
14V ≥ VI ≥ 25V 100 170 mV
1mA < IO< 100mA 20 94 mV
1mA < IO < 70mA 10 47 mV
12.5 < VI < 25V, 1mA < IO < 40mA 9.5 10.5
12.5 < VI < VMAX(Note), 1mA < IO < 70mA 9.5 10.5
TJ = 25 °C4.2 6.5
TJ = 125 °C6.0
Quiescent Current with line ∆IQ12.5 < VI < 25V 1.5
Change with load ∆IQ1mA < IO < 40mA 0.1
Output Noise Voltage VNTA = 25 °C, 10Hz < f < 100KHz 74 µV/VO
Temperature Coefficient of VOIO = 5mA 0.95 mV/ °C
Ripple Rejection RR f = 120Hz, 15V < VI < 25V, TJ = 25 °C38 43 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Line Regulation
Line Regulation
∆
VO
∆
VO
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
mV/
°
C
TJ =25
°
C
∆
VO
∆
VO
Load Regulation
Load Regulation
∆
VO/
∆
T
∆
VO/
∆
T
Output Voltage VOV
mA
mA
Quiescent Current
I
Q
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
LM78L12 ELECTRICAL CHARACTERISTICS
(VI = 19V, IO = 40mA, 0 °C ≤TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
LM78L15 ELECTRICAL CHARACTERISTICS
(VI = 23V, IO = 40mA, 0 °C ≤ TJ ≤ 125°C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C11.5 12 12.5 V
14.5V ≤ VI ≤ 27V 20 250 mV
16V ≤ VI ≤ 27V 15 200 mV
1mA ≤ IO ≤ 100mA 20 100 mV
1mA ≤ IO ≤ 40mA 10 50 mV
14.5V ≤ VI ≤ 27V 1mA ≤ IO ≤ 40mA 11.4 12.6 V
Output Voltage VO14.5V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 11.4 12.6 V
Quiescent Current IQTJ = 25 °C2.1 6.0 mA
Quiescent Current with line ∆IQ16V ≤ VI ≤ 27V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 80 µV/VO
Temperature Coefficient of VOIO = 5mA -1.0
Ripple Rejection RR f = 120Hz, 15V ≤ VI ≤ 25V, TJ = 25 °C37 65 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C14.4 15 15.6 V
17.5V ≤ VI ≤ 30V 25 300 mV
20V ≤ VI ≤ 30V 20 250 mV
1mA ≤ IO ≤ 100mA 25 150 mV
1mA ≤ IO ≤ 40mA 12 75 mV
17.5V ≤ VI ≤ 30V 1mA ≤ IO ≤ 40mA 14.25 15.75 V
Output Voltage VO17.5V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 14.25 15.75 V
Quiescent Current IQTJ = 25 °C2.1 6.0 mA
Quiescent Current with line ∆IQ20V ≤ VI ≤ 30V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 90 µV/VO
Temperature Coefficient of VOIO = 5mA -1.3 mV/ °C
Ripple Rejection RR f = 120Hz, 18.5V ≤ VI ≤ 28.5V, TJ = 25 °C34 60 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Line Regulation
Line Regulation
∆
VO
∆
VO
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
mV/
°
C
TJ =25
°
C
∆
VO
∆
VO
Load Regulation
Load Regulation
∆
VO/
∆
T
∆
VO/
∆
T
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
LM78L18 ELECTRICAL CHARACTERISTICS
(VI = 27V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
LM78L24 ELECTRICAL CHARACTERISTICS
(VI = 33V, IO = 40mA, 0 °C ≤ TJ ≤ 125 °C, CI = 0.33 µF, CO = 0.1µF, unless otherwise specified. (Note 1)
Notes
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead
length of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation
of tests.
2. Power dissipation ≤ 0.75W.
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C17.3 18 18.7 V
21V ≤ VI ≤ 33V 145 300 mV
22V ≤ VI ≤ 33V 135 250 mV
1mA ≤ IO≤100mA 30 170 mV
1mA ≤ IO ≤ 40mA 15 85 mV
21V ≤ VI ≤ 33V 1mA ≤ IO ≤ 40mA 17.1 18.9 V
Output Voltage VO21V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 17.1 18.9 V
Quiescent Current IQTJ = 25 °C2.2 6.0 mA
Quiescent Current with line ∆IQ21V ≤ VI ≤ 33V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 150 µV/VO
Temperature Coefficient of VOIO = 5mA -1.8 mV/ °C
Ripple Rejection RR f = 120Hz, 23V ≤ VI ≤ 33V, TJ = 25 °C34 48 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Characteristic Symbol Test Conditions Min Typ Max Unit
Output Voltage VO TJ = 25 °C23 24 25 V
27V ≤ VI ≤ 38V 160 300 mV
28V ≤ VI ≤ 38V 150 250 mV
1mA ≤ IO ≤ 100mA 40 200 mV
1mA ≤ IO ≤ 40mA 20 100 mV
27V ≤ VI ≤ 38V 1mA ≤ IO ≤ 40mA 22.8 25.2 V
Output Voltage VO27V ≤ VI ≤ VMAX
(Note 2) 1mA ≤ IO ≤ 70mA 22.8 25.2 V
Quiescent Current IQTJ = 2 5°C2.2 6.0 mA
Quiescent Current with line ∆IQ28V ≤ VI ≤ 38V 1.5 mA
Change with load ∆IQ1mA ≤ IO ≤ 40mA 0.1 mA
Output Noise Voltage VNTA = 25 °C, 10Hz ≤ f ≤ 100KHz 200 µV/VO
Temperature Coefficient of VOIO = 5mA -2.0 mV/ °C
Ripple Rejection RR f = 120Hz, 28V ≤ VI ≤ 38V, TJ = 25 °C34 45 dB
Dropout Voltage VDTJ = 25 °C1.7 V
Line Regulation
Line Regulation
∆
VO
∆
VO
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
TJ =25
°
C
∆
VO
∆
VO
Load Regulation
Load Regulation
∆
VO/
∆
T
∆
VO/
∆
T
MC78LXXA (LM78LXX, KA78LXXA) FIXED VOLTAGE REGULATOR (POSITIVE)
TYPICAL APPLICATION
KA78LXXA
NOTE 1
INPUT OUTPUT
1(1)
2(2,3,6,7)
3(8)
C1
0.33 µF
NOTE 2 0. 1
NOTE 2
µF
’( )’ : 8SOP Type
Notes
1. To specify an output voltage, substitute voltage value for “XX”.
2. Bypass Capacitors are recommend for optimum stability and transient response and should be located as close as
possible to the regulator
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not
intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOS™
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench
QFET™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
UHC™
VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustai n l ife, or (c) whose
failure to perform when properly used i n accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the l i fe
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or
In Design This datasheet contains the design specifications for
product development. Specifications may change in any
manner without notice.
Preliminary First Production This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed Full Production This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at any
time without notice in order to improve design.
Obsolete Not In Production This datasheet contains specifications on a product that has
been discontinued by Fairchild semiconductor. The
datasheet is printed for reference information only.
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not
intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOS™
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench®
QFET™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
UHC™
VCX™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustai n l ife, or (c) whose
failure to perform when properly used i n accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the l i fe
support device or system, or to affect its safety or
effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or
In Design This datasheet contains the design specifications for
product development. Specifications may change in any
manner without notice.
Preliminary First Production This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed Full Production This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at any
time without notice in order to improve design.
Obsolete Not In Production This datasheet contains specifications on a product that has
been discontinued by Fairchild semiconductor. The
datasheet is printed for reference information only.
