Rev. A/DX 2007
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06
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04
LM78xx
1A Positive
Voltage Regulator
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
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Tel: (800)
-
TAITRON (800)
-
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-
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-
257
-
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Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415
1A Positive Voltage Regulator
General Description
• The TCI LM78xx family is monolithic fixed voltage regulator
integrated circuit. They are suitable for applications that
required supply current up to 1A.
• The LM78M is available in D-PACK (TO-252) and TO-220 packages.
.
Features Applications
• Output Current up to 1A
• Fixed output voltage of 5V, 6V, 8V, 9V,
10V, 12V,15V, 18V and 24V available
• Thermal overload shutdown protection
• Short circuit current limiting
• Output transistor SOA protection
• RoHS Compliance
Ordering Information
D-PACK
(
TO-252
)
• High Efficiency Linear Regulator
• Post Regulation for Switching Supply
• Microprocessor Power Supply
• Mother Board
TO-220
1A Positive Voltage Regulator
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LM78xx
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Pin Configuration
Block Diagram
Outline: D
D-PACK
(
TO-252
)
Outline: T
TO-220
1A Positive Voltage Regulator
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Absolute Maximum Ratings
Symbol Description Ratings Unit
VOUT=3.3~18V 35
VIN Input Voltage VOUT=20~24V 40
V
IOUT Output Current 1 A
D-PACK (TO-252)
PD Power Dissipation TO-220 Internally Limited mW
TJ Junction Temperature 150
TOPR Operating Temperature Range -20 ~ 150 ° C
TSTG Storage Temperature Range -55 ~ 150 ° C
Note: 1. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
The device could be damaged beyond Absolute maximum ratings.
2. The maximum steady state usable output current are dependent on input voltage, heat sinking,
lead length of the package and copper pattern of PCB. The data are showed as electrical
characteristics table represents pulse test conditions with junction temperatures specified at
the initiation of test.
Electrical Characteristics (TJ=25° C, PD≦15W, unless otherwise specified)
For LM7805 (VIN=10V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7805
Symbol Description Min. Typ. Max. Unit Test Conditions
4.80 5.0 5.20 V IOUT=5mA-1.0A
VOUT Output Voltage 4.75 - 5.25 V 7.5V≤VIN≤20V, IOUT=5mA-1.0A
- - 50 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 25 mV IOUT=0.25A-0.75A
- - 50 mV 7V≤VIN≤25V
∆VOUT Line Regulation - - 50 mV 7.5V≤VIN≤20V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 7.5V≤VIN≤20V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 40 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -0.6 -
mV/℃IOUT=5mA
RR Ripple Rejection 62 80 - dB 8V≤VIN≤18V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
1A Positive Voltage Regulator
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For LM7806 (VIN=11V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7806
Symbol Description Min. Typ. Max. Unit Test Conditions
5.76 6.0 6.24 V IOUT=5mA-1.0A
VOUT Output Voltage 5.70 - 6.30 V 8.5V≤VIN≤21V, IOUT=5mA-1.0A
- - 60 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 30 mV IOUT=0.25A-0.75A
- - 60 mV 8V≤VIN≤25V
∆VOUT Line Regulation - - 60 mV 8.5V≤VIN≤21V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 8.5V≤VIN≤21V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 45 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -0.7 -
mV/℃IOUT=5mA
RR Ripple Rejection 59 75 - dB 9V≤VIN≤19V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
For LM7808 (VIN=14V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7808
Symbol Description Min. Typ. Max. Unit Test Conditions
7.68 8.0 8.32 V IOUT=5mA-1.0A
VOUT Output Voltage 7.60 - 8.40 V 10.5V≤VIN≤23V, IOUT=5mA-1.0A
- - 80 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 40 mV IOUT=0.25A-0.75A
- - 80 mV 10.5V≤VIN≤25V
∆VOUT Line Regulation - - 80 mV
10.5V≤VIN≤23V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 10.5V≤VIN≤23V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 58 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -0.9 -
mV/℃IOUT=5mA
RR Ripple Rejection 56 72 - dB 11.5V≤VIN≤21.5V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
1A Positive Voltage Regulator
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For LM7809 (VIN=15V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7809
Symbol Description Min. Typ. Max. Unit Test Conditions
8.64 9.0 9.36 V IOUT=5mA-1.0A
VOUT Output Voltage 8.55 - 9.45 V 11.5V≤VIN≤24V, IOUT=5mA-1.0A
- - 90 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 45 mV IOUT=0.25A-0.75A
- - 90 mV 11.5V≤VIN≤25V
∆VOUT Line Regulation - - 90 mV
11.5V≤VIN≤24V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 11.5V≤VIN≤24V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 58 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -1.1 -
mV/℃IOUT=5mA
RR Ripple Rejection 56 72 - dB 12.5V≤VIN≤22.5V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
For LM7810 (VIN=16V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7810
Symbol Description Min. Typ. Max. Unit Test Conditions
9.60 10.0 10.40 V IOUT=5mA-1.0A
VOUT Output Voltage 9.50 - 10.50 V 12.5V≤VIN≤25V, IOUT=5mA-1.0A
- - 100 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 50 mV IOUT=0.25A-0.75A
- - 100 mV 13V≤VIN≤25V
∆VOUT Line Regulation - - 100 mV 13V≤VIN≤25V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 12.6V≤VIN≤25V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 58 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -1.1 -
mV/℃IOUT=5mA
RR Ripple Rejection 56 72 - dB 13V≤VIN≤23V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
1A Positive Voltage Regulator
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For LM7812 (VIN=19V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7812
Symbol Description Min. Typ. Max. Unit Test Conditions
11.52 12.0 12.48 V IOUT=5mA-1.0A
VOUT Output Voltage 11.40 - 12.60 V 14.5V≤VIN≤27V, IOUT=5mA-1.0A
- - 120 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 60 mV IOUT=0.25A-0.75A
- - 120 mV 14.5V≤VIN≤30V
∆VOUT Line Regulation - - 120 mV
14.6V≤VIN≤27V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 14.5V≤VIN≤30V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 75 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -1.5 -
mV/℃IOUT=5mA
RR Ripple Rejection 55 72 - dB 15V≤VIN≤25V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
For LM7815 (VIN=23V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7815
Symbol Description Min. Typ. Max. Unit Test Conditions
14.40 15.0 15.60 V IOUT=5mA-1.0A
VOUT Output Voltage 14.25 - 15.75 V 17.5V≤VIN≤30V, IOUT=5mA-1.0A
- - 150 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 75 mV IOUT=0.25A-0.75A
- - 150 mV 18.5V≤VIN≤30V
∆VOUT Line Regulation - - 150 mV
17.7V≤VIN≤30V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 17.5V≤VIN≤30V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 90 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -1.8 -
mV/℃IOUT=5mA
RR Ripple Rejection 54 70 - dB 18.5V≤VIN≤28.5V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
1A Positive Voltage Regulator
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For LM7818 (VIN=27V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7818
Symbol Description Min. Typ. Max. Unit Test Conditions
17.28 18.0 18.72 V IOUT=5mA-1.0A
VOUT Output Voltage 17.10 - 18.90 V 21V≤VIN≤33V, IOUT=5mA-1.0A
- - 180 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 90 mV IOUT=0.25A-0.75A
- - 180 mV 21V≤VIN≤33V
∆VOUT Line Regulation - - 180 mV 21V≤VIN≤33V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 21.5V≤VIN≤33V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 110 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -2.2 -
mV/℃IOUT=5mA
RR Ripple Rejection 53 69 - dB 22V≤VIN≤32V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
For LM7824 (VIN=33V, IOUT=0.5A, C1=0.33µF, CO =0.1µF)
LM7824
Symbol Description Min. Typ. Max. Unit Test Conditions
23.04 24.0 24.96 V IOUT=5mA-1.0A
VOUT Output Voltage 22.80 - 25.20 V 27V≤VIN≤38V, IOUT=5mA-1.0A
- - 240 mV IOUT=5mA-1.0A
∆VOUT Load Regulation - - 120 mV IOUT=0.25A-0.75A
- - 240 mV 27V≤VIN≤38V
∆VOUT Line Regulation - - 240 mV 27V≤VIN≤38V, IOUT=1.0A
IQ Quiescent Current - - 8.0 mA IOUT≦1.0A
- - 1.0 mA 28V≤VIN≤38V
∆IQ Quiescent Current Change - - 0.5 mA IOUT=5mA-1.0A
eN Output Noise Voltage - 170 - µV 10Hz≤f≤100KHz
∆VO/∆T Temperature coefficient of
VOUT - -2.8 -
mV/℃IOUT=5mA
RR Ripple Rejection 50 66 - dB 28V≤VIN≤38V, f=120Hz
IPEAK Peak Output Current - 1.8 - A -
ISC Short-Circuit Current - 250 - mA VIN=35V
VD Dropout Voltage - 2.0 - V -
1A Positive Voltage Regulator
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Fig.1- Peak Output Current vs. Input/Output
Differential Voltage
VIN-VOUT (V)
Fig.2- Output Voltage vs. Junction Temperature
Junction Temperature (°C)
Fig.3- Quiescent Current vs. Junction Temperature
Junction Temperature (°C)
Fig.4- Ripple Rejection vs. Frequency
Frequency (Hz)
Typical Characteristics Curves
Peak Output Current (A)
Output Voltage (V)
Quiescent Current (mA)
Ripple Rejection (dB)
1A Positive Voltage Regulator
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Fig.6- Power Dissipation vs. Case Temperature
Case Temperature (°C)
Fig.5- Dropout Voltage vs. Junction Temperature
Junction Temperature (°C)
Fig.7- Power Dissipation vs. Case Temperature
Case Temperature (°C)
Fig.8- Thermal Shutdown Protection
Junction Temperature (°C)
Typical Characteristics Curves (Continued)
Power Dissipation (W)
Dropout Voltage (V) Power Dissipation (W)
Output Voltage (V)
1A Positive Voltage Regulator
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Fig.9- Line Transient
(Conditions: IOUT=500mA, COUT=0.1µF)
Time (100µs/Div)
Fig.10- Load Transient
(Conditions: VIN=10V, CIN=0.33µF, COUT=0.1µF)
Time (40µs/Div)
Typical Characteristics Curves (Continued)
Typical Application
VIN (5V/Div)
∆VOUT (50mV/Div)
IOUT (1A/Div)
∆VOUT (100mV/Div)
1A Positive Voltage Regulator
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Dimensions in mm (inches)
D-PACK
(TO-252)
TO-220
1A Positive Voltage Regulator
Rev. A/DX 2007
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LM78xx
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