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1A Positive Voltage Regulator LM78xx
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. . D-PACK (TO-252) TO-220
Features
* 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
Applications
* * * * High Efficiency Linear Regulator Post Regulation for Switching Supply Microprocessor Power Supply Mother Board
Ordering Information
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415
Rev. A/DX 2007-06-04 Page 1 of 12
1A Positive Voltage Regulator LM78xx
Pin Configuration
Outline: D D-PACK (TO-252)
Outline: T TO-220
Block Diagram
Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 2 of 12
1A Positive Voltage Regulator LM78xx
Absolute Maximum Ratings
Symbol VIN IOUT PD TJ TOPR TSTG Description VOUT=3.3~18V VOUT=20~24V Output Current D-PACK (TO-252) Power Dissipation TO-220 Junction Temperature Operating Temperature Range Storage Temperature Range Input Voltage Ratings 35 40 1 Internally Limited 150 -20 ~ 150 -55 ~ 150 Unit V A mW C 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, PD15W, unless otherwise specified)
For LM7805 (VIN=10V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7805
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 7.5VVIN20V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 7VVIN25V 7.5VVIN20V, IOUT=1.0A IOUT1.0A 7.5VVIN20V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 8VVIN18V, f=120Hz VIN=35V Rev. A/DX 2007-06-04
4.80 4.75 62 -
5.0 40 -0.6 80 1.8 250 2.0
5.20 5.25 50 25 50 50 8.0 1.0 0.5 -
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1A Positive Voltage Regulator LM78xx
For LM7806 (VIN=11V, IOUT=0.5A, C1=0.33F, CO =0.1F) LM7806 Symbol Description
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 8.5VVIN21V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 8VVIN25V 8.5VVIN21V, IOUT=1.0A IOUT1.0A 8.5VVIN21V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 9VVIN19V, f=120Hz VIN=35V -
VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD
Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
5.76 5.70 59 -
6.0 45 -0.7 75 1.8 250 2.0
6.24 6.30 60 30 60 60 8.0 1.0 0.5 -
For LM7808 (VIN=14V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7808
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 10.5VVIN23V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 10.5VVIN25V 10.5VVIN23V, IOUT=1.0A IOUT1.0A 10.5VVIN23V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 11.5VVIN21.5V, f=120Hz VIN=35V Rev. A/DX 2007-06-04
7.68 7.60 56 -
8.0 58 -0.9 72 1.8 250 2.0
8.32 8.40 80 40 80 80 8.0 1.0 0.5 -
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1A Positive Voltage Regulator LM78xx
For LM7809 (VIN=15V, IOUT=0.5A, C1=0.33F, CO =0.1F) LM7809 Symbol Description
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 11.5VVIN24V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 11.5VVIN25V 11.5VVIN24V, IOUT=1.0A IOUT1.0A 11.5VVIN24V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 12.5VVIN22.5V, f=120Hz VIN=35V -
VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD
Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
8.64 8.55 56 -
9.0 58 -1.1 72 1.8 250 2.0
9.36 9.45 90 45 90 90 8.0 1.0 0.5 -
For LM7810 (VIN=16V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7810
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 12.5VVIN25V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 13VVIN25V 13VVIN25V, IOUT=1.0A IOUT1.0A 12.6VVIN25V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 13VVIN23V, f=120Hz VIN=35V Rev. A/DX 2007-06-04
9.60 9.50 56 -
10.0 58 -1.1 72 1.8 250 2.0
10.40 10.50 100 50 100 100 8.0 1.0 0.5 -
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1A Positive Voltage Regulator LM78xx
For LM7812 (VIN=19V, IOUT=0.5A, C1=0.33F, CO =0.1F) LM7812 Symbol Description
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 14.5VVIN27V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 14.5VVIN30V 14.6VVIN27V, IOUT=1.0A IOUT1.0A 14.5VVIN30V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 15VVIN25V, f=120Hz VIN=35V -
VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD
Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
11.52 11.40 55 -
12.0 75 -1.5 72 1.8 250 2.0
12.48 12.60 120 60 120 120 8.0 1.0 0.5 -
For LM7815 (VIN=23V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7815
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 17.5VVIN30V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 18.5VVIN30V 17.7VVIN30V, IOUT=1.0A IOUT1.0A 17.5VVIN30V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 18.5VVIN28.5V, f=120Hz VIN=35V Rev. A/DX 2007-06-04
14.40 14.25 54 -
15.0 90 -1.8 70 1.8 250 2.0
15.60 15.75 150 75 150 150 8.0 1.0 0.5 -
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1A Positive Voltage Regulator LM78xx
For LM7818 (VIN=27V, IOUT=0.5A, C1=0.33F, CO =0.1F) LM7818 Symbol Description
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 21VVIN33V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 21VVIN33V 21VVIN33V, IOUT=1.0A IOUT1.0A 21.5VVIN33V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 22VVIN32V, f=120Hz VIN=35V -
VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD
Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage
17.28 17.10 53 -
18.0 110 -2.2 69 1.8 250 2.0
18.72 18.90 180 90 180 180 8.0 1.0 0.5 -
For LM7824 (VIN=33V, IOUT=0.5A, C1=0.33F, CO =0.1F) Symbol VOUT VOUT VOUT IQ IQ eN VO/T RR IPEAK ISC VD Description Output Voltage Load Regulation Line Regulation Quiescent Current Quiescent Current Change Output Noise Voltage Temperature coefficient of VOUT Ripple Rejection Peak Output Current Short-Circuit Current Dropout Voltage LM7824
Min. Typ. Max.
Unit V V mV mV mV mV mA mA mA V mV/ dB A mA V
Test Conditions IOUT=5mA-1.0A 27VVIN38V, IOUT=5mA-1.0A IOUT=5mA-1.0A IOUT=0.25A-0.75A 27VVIN38V 27VVIN38V, IOUT=1.0A IOUT1.0A 28VVIN38V IOUT=5mA-1.0A 10Hzf100KHz IOUT=5mA 28VVIN38V, f=120Hz VIN=35V Rev. A/DX 2007-06-04
23.04 22.80 50 -
24.0 170 -2.8 66 1.8 250 2.0
24.96 25.20 240 120 240 240 8.0 1.0 0.5 -
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1A Positive Voltage Regulator LM78xx
Typical Characteristics Curves
Fig.1- Peak Output Current vs. Input/Output Differential Voltage Fig.2- Output Voltage vs. Junction Temperature
Peak Output Current (A)
Output Voltage (V)
VIN-VOUT (V)
Junction Temperature (C)
Fig.3- Quiescent Current vs. Junction Temperature
Fig.4- Ripple Rejection vs. Frequency
Quiescent Current (mA)
Junction Temperature (C)
Ripple Rejection (dB)
Frequency (Hz)
Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 8 of 12
1A Positive Voltage Regulator LM78xx
Typical Characteristics Curves (Continued)
Fig.5- Dropout Voltage vs. Junction Temperature Fig.6- Power Dissipation vs. Case Temperature
Junction Temperature (C)
Power Dissipation (W)
Dropout Voltage (V)
Case Temperature (C)
Fig.7- Power Dissipation vs. Case Temperature
Fig.8- Thermal Shutdown Protection
Power Dissipation (W)
Output Voltage (V)
Case Temperature (C)
Junction Temperature (C)
Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 9 of 12
1A Positive Voltage Regulator LM78xx
Typical Characteristics Curves (Continued)
Fig.9- Line Transient (Conditions: IOUT=500mA, COUT=0.1F) IOUT (1A/Div) VIN (5V/Div) Fig.10- Load Transient (Conditions: VIN=10V, CIN=0.33F, COUT=0.1F)
VOUT (100mV/Div)
VOUT (50mV/Div)
Time (100s/Div)
Time (40s/Div)
Typical Application
Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 10 of 12
1A Positive Voltage Regulator LM78xx
Dimensions in mm (inches)
D-PACK (TO-252)
TO-220
Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 11 of 12
1A Positive Voltage Regulator LM78xx
How to contact us:
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