LM7809AT-08-TU - Taitron Components

Rev. A/AH 2008

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LM78xxAT

1A Positive

Voltage Regulator

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1A Positive Voltage Regulator

General Description

• The TCI LM78xxAT family is monolithic fixed voltage regulator

integrated circuit. They are suitable for applications that

required supply current up to 1A.

• The LM78xxAT is available in TO-220 package.

.

Features Applications

• Output Current up to 1A

• Fixed Output Voltage of 5V, 8V, 9V,

12V,15V, 18V Available

• Thermal Overload Shutdown Protection

• Short Circuit Current Limiting

• Output Transistor SOA Protection

• RoHS Compliance

Ordering Information

• High Efficiency Linear Regulator

• Post Regulation for Switching Supply

• Microprocessor Power Supply

• Mother Board

TO-220

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Marking Information

Outline Temperature

Range PN Marking Code Package Type

LM7805AT AS7805AT-E1

LM7808AT AS7808AT-E1

LM7809AT AS7809AT-E1

LM7812AT AS7812AT-E1

LM7815AT AS7815AT-E1

TO-220 -40 to 125°C

LM7818AT AS7818AT-E1

Tube

Packing Information

Package Type Units/Tube Tubes/Inner

Box Units/Inner Box Inner Boxes

/Outer Box

TO-220 50 20 1000 5

Pin Configuration

Outline: TO-220

1A Positive Voltage Regulator

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Functional Block Diagram

1A Positive Voltage Regulator

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Absolute Maximum Ratings (Note 1)

Symbol Description Ratings Unit

VIN Input Voltage 36 V

IOUT Output Current 1 A

TLEAD Lead Temperature (Soldering 10sec) 260 ° C

PD Power Dissipation Internally Limited W

TJ Junction Temperature 150 ° C

TSTG Storage Temperature Range -65 to 150 ° C

θJA Thermal Resistance 60 ° C/ W

ESD ESD (Human Body Model) 6000 V

ESD ESD (Machine Model) 500 V

Note: 1. Stresses greater than 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 Ratings” for extended periods may affect device

reliability.

Recommended Operating Conditions

Ratings

Symbol Description Min. Max. Unit

LM7805AT - 25

LM7808AT - 28

LM7809AT - 29

LM7812AT - 32

LM7815AT - 32

VIN Input Voltage

LM7818AT - 32

V

TJ Operating Junction Temperature Range -40 125 ° C

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Electrical Characteristics

For LM7805AT (VIN=10V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7805AT

Symbol Description Min. Typ. Max. Unit Test Conditions

4.9 5.0 5.1 TJ=25° C

VOUT Output Voltage 4.8 - 5.2 V VIN=7.5V to 20V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 25 50 mV VIN=7.5V to 20V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 20 50 mV VIN=10V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.2 6.0 mA VIN=10V, IOUT=0

- 0.3 0.8 VIN=8V to 25V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 70 - dB VIN=8V to 18V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 10 - mΩ f=1kHz

ISC Short Circuit Current - 0.05 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=10V, TJ=25° C

∆VOUT/∆T - 0.4 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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For LM7808AT (VIN=14V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7808AT

Symbol Description Min. Typ. Max. Unit Test Conditions

7.84 8 8.16 TJ=25° C

VOUT Output Voltage 7.7 - 8.3 V VIN=10.6V to 23V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 25 75 mV VIN=10.6V to 23V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 25 75 mV VIN=14V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.2 6.0 mA VIN=14V, IOUT=0

- 0.3 0.8 VIN=10.6V to 23V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 62 - dB VIN=11.5V to 21.5V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 10 - mΩ f=1kHz

ISC Short Circuit Current - 0.2 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=14V, TJ=25° C

∆VOUT/∆T - 0.64 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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For LM7809AT (VIN=15V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7809AT

Symbol Description Min. Typ. Max. Unit Test Conditions

8.82 9 9.18 TJ=25° C

VOUT Output Voltage 8.65 - 9.35 V VIN=11.5V to 23V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 25 90 mV VIN=11.5V to 23V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 25 100 mV VIN=14V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.2 6.0 mA VIN=15V, IOUT=0

- 0.3 0.8 VIN=11.5V to 23V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 61 - dB VIN=11.5V to 21.5V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 10 - mΩ f=1kHz

ISC Short Circuit Current - 0.2 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=15V, TJ=25° C

∆VOUT/∆T - 0.72 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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For LM7812AT (VIN=19V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7812AT

Symbol Description Min. Typ. Max. Unit Test Conditions

11.75 12 12.25 TJ=25° C

VOUT Output Voltage 11.5 - 12.5 V VIN=14.8V to 27V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 25 120 mV VIN=14.8V to 27V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 40 120 mV VIN=19V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.4 6.0 mA VIN=19V, IOUT=0

- 0.3 0.8 VIN=14.8V to 30V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 60 - dB VIN=15V to 25V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 11 - mΩ f=1kHz

ISC Short Circuit Current - 0.2 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=18V, TJ=25° C

∆VOUT/∆T - 0.96 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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For LM7815AT (VIN=23V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7815AT

Symbol Description Min. Typ. Max. Unit Test Conditions

14.7 15 15.3 TJ=25° C

VOUT Output Voltage 14.4 - 15.6 V VIN=17.9V to 30V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 35 150 mV VIN=17.9V to 30V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 70 150 mV VIN=23V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.4 6.0 mA VIN=23V, IOUT=0

- 0.3 0.8 VIN=17.9V to 30V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 58 - dB VIN=18.5V to 28.5V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 11 - mΩ f=1kHz

ISC Short Circuit Current - 0.2 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=21V, TJ=25° C

∆VOUT/∆T - 1.2 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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For LM7818AT (VIN=27V, IOUT=1A, TJ=-40 to 125° C, unless otherwise specified)

LM7818AT

Symbol Description Min. Typ. Max. Unit Test Conditions

17.64 18 18.36 TJ=25° C

VOUT Output Voltage 17.3 - 18.7 V VIN=21V to 33V,

IOUT=5mA to 1A, PD≤15W

VRLINE Line Regulation - 45 180 mV VIN=21V to 33V, IOUT=500mA,

TJ=25° C

VRLOAD Load Regulation - 85 180 mV VIN=27V, IOUT=5mA to 1A,

TJ=25° C

IQ Quiescent Current - 3.6 6.0 mA VIN=27V, IOUT=0

- 0.3 0.8 VIN=21V to 33V, IOUT=500mA,

TJ=25° C

∆IQ Quiescent Current

Change - 0.08 0.5

mA

IOUT=5mA to 1A, TJ=25° C

PSRR Ripple Rejection - 57 - dB VIN=22V to 32V, f=120Hz,

IOUT=500mA

VDROP Dropout Voltage - 2.0 - V ∆VOUT=1%, IOUT=1A, TJ=25° C

NO Output Noise Voltage - 10 - µV/VO f=10Hz to 100kHz, TA=25° C

RO Output Resistance - 11 - mΩ f=1kHz

ISC Short Circuit Current - 0.2 - A VIN=35V, TA=25° C

IPK Peak Output Current - 2.2 - A VIN=24V, TJ=25° C

∆VOUT/∆T - 1.44 - mV/° C

(∆VOUT/∆VOUT)/∆T

Output Voltage

Temperature Coefficient - 80 - ppm/° C

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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- Output Voltage vs. Output Current

Output Current (mA)

Fig.4- Output Voltage vs. Input Voltage

Input Voltage (V)

Typical Characteristics Curves

Peak Output Current (A)

Output Voltage (V)

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Fig.6- Ripple Rejection vs. Frequency

Frequency (Hz)

Fig.5- Quiescent Current vs. Junction Temperature

Junction Temperature (°C)

Fig.7- Dropout Voltage vs. Junction Temperature

Junction Temperature (°C)

Fig.8- Power Dissipation vs. Junction Temperature

Junction Temperature (°C)

Typical Characteristics Curves (Continued)

Ripple Rejection (dB)

Dropout Voltage (V)

Power Dissipation (W)

Quiescent Current (mA)

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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 Performance Characteristics

Typical Application

VIN (5V/Div)

∆VOUT (50mV/Div)

IOUT (1A/Div)

∆VOUT (100mV/Div)

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Dimensions in mm (inches)

TO-220

1A Positive Voltage Regulator

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