1A Standard Positive Voltage Regulator LM78xxA Standard Positive Voltage Regulator ... • The...

Rev. B/LX

LM78xxA

1A Standard Positive Voltage Regulator

TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com

of 18 Tel: (800)-TAITRON (800)-824-8766 (661)-257-6060 Fax: (800)-TAITFAX (800)-824-8329 (661)-257-6415


General Description

• The LM78xxA series is three terminal standard positive voltage regulator designed for a wide range of applications that required supply current up to 1A.

• The LM78xxA series is available in 7 fixed output voltage:5V,6V,8V,9V,12V,15V and 18V. • The LM78xxA series provides internal current limiting, thermal shutdown protection and

Safe-area operation compensation which make them virtually immune from output load, and the output current could up to 1A if adequate heat sinking provide

• The LM78xxA is available in TO-220,TO-220F and DPAK (TO-252) packages. .

Features • Output Current up to 1A • Maximum Input voltage up to 36V • Output Voltage Accuracy of ±4% over full temperature • Thermal Overload Protection • Short Circuit Current Limiting • Output Transistor safe operation area (SOA) Protection • Wide Operation Temperature Range: -40°C to 125°C • RoHS Compliance and Halogen Free

Applications

TO-220

• High Efficiency Linear Regulator • Post Regulation for Switching Supply • Microprocessor Power Supply • Mother Board

TO-220F

DPAK （TO-252）


Rev. B/LX

LM78xxA

www.taitroncomponents.com of 18

Ordering Information

Pin Configuration

TO-220 TO-220F DPAK （TO-252）

1: INPUT 2: GND 3: OUTPUT 1: INPUT 2: GND 3: OUTPUT 1: INPUT 2: GND 3: OUTPUT


Rev. B/LX

LM78xxA


Marking Information PN Marking Code Outline Temperatue

Range ROHS Halogen Free ROHS Halogen FreePacking Type

LM7805AT-08-TU LM7805AT-08-UG AS7805AT-E1 AS7805AT-G1






TO-220 -40°C to 125°C


Tube

LM7805AF-08-TU LM7805AF-08-UG AS7805ATF-E1 AS7805ATF-G1






TO-220F -40°C to 125°C


Tube

LM7805AD-08-TU LM7805AD-08-UG Tube

LM7805AD-08-TR30 LM7805AD-08-RG30 AS7805AD-E1 AS7805AD-G1 Tape

&Reel LM7806AD-08-TU LM7806AD-08-UG Tube











DPAK (TO-252) -40°C to 125°C


&Reel


Rev. B/LX

LM78xxA


Functional Block Diagram


Rev. B/LX

LM78xxA


Absolute Maximum Ratings (Note 1)

Symbol Description Ratings Unit

VIN Input Voltage 36 V

PD Power Dissipation Internally Limited W

TLEAD Lead Temperature (Soldering 10sec) 260 °C

TJ Operating Junction Temperature 150 °C

TSTG Storage Temperature Range -65 to 150 °C TO-220

TO-220F 60 θJA Thermal Resistance (Junction to Ambient) DPAK (TO-252) 100

°C/ W

ESD ESD (Human Body Model) 6000 V

ESD ESD (Machine Model) 500 V

Recommend Operating Ratings (Note1)

Ratings Symbol Description Min. Max. Unit

LM7805A - 25

LM7806A - 26

LM7808A - 28

LM7809A - 29

LM7812A - 32

LM7815A - 32

VIN Input Voltage

LM7818A - 32

V

TJ Operating Junction Temperature Range -40 125 °C Note1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. Recommend operating ratings indicate conditions for which the device is functional, but do not guarantee specific specification limits. For guarantee specification and test conditions, see the Electrical Characteristics, the guarantee specification apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.


Rev. B/LX

LM78xxA


Electrical Characteristics

For LM7805A (VIN=10V, IO=1A, TJ=-40 to 125°C, unless otherwise specified) LM7805A Symbol Description

Min. Typ. Max. Unit Test Conditions

4.9 5.0 5.1 TJ=25°C VO Output Voltage

4.8 - 5.2 V VIN=7.5V to 20V,

IO=5mA to 1A, PD≤15W

∆VLINE Line Regulation - 25 50 mV VIN=7.5V to 20V, IO=500mA, TJ=25°C

∆VLOAD Load Regulation - 20 50 mV VIN=10V, IO=5mA to 1A, TJ=25°C

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

- 0.3 0.8 VIN=8V to 25V, IO=500mA, TJ=25°C ∆IQ Quiescent Current

Change - 0.08 0.5 mA

IO=5mA to 1A, TJ=25°C

PSRR Ripple Rejection - 70 - dB VIN=8V to 18V, f=120Hz, IO=500mA

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

eN 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

∆VO/∆T - 0.4 - mV/°C -

(∆VO/VO)/∆T Output Voltage Temperature Coefficient - 80 - ppm/°C -

- 9 - TO-220

- 9 - TO-220F θJC Thermal Resistance (Junction to Case)

- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA




5.88 6.0 6.12 TJ=25°C VO Output Voltage

5.76 - 6.24V VIN=8.6V to 21V,





- 0.3 0.8 VIN=8.6V to 21V, IO=500mA, TJ=25°C ∆IQ Quiescent Current



PSRR Ripple Rejection - 70 - dB VIN=9.5V to 19.5V, f=120Hz, IO=500mA






∆VO/∆T - 0.5 - mV/°C

(∆VO/VO)/∆T Output Voltage Temperature Coefficient - 80 - ppm/°C

- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA




7.84 8 8.16 TJ=25°C VO Output Voltage

7.7 - 8.3 V VIN=10.6V to 23V,














∆VO/∆T - 0.64 - mV/°C -

(∆VO/∆VO)/∆T Output Voltage Temperature Coefficient - 80 - ppm/°C -

- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA





8.65 - 9.35V VIN=11.5V to 23V,














∆VO/∆T - 0.72 - mV/°C

(∆VO/VO)/∆T Output Voltage Temperature Coefficient - 80 - ppm/°C

- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA





11.5 - 12.5V VIN=14.8V to 27V,














∆VO/∆T - 0.96 - mV/°C -


- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA


For LM7815A(VIN=23V, IO=1A, TJ=-40 to 125°C, unless otherwise specified) LM7815A Symbol Description



14.4 - 15.6V VIN=17.9V to 30V,














∆VO/∆T - 1.2 - mV/°C -


- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA


For LM7818A(VIN=27V, IO=1A, TJ=-40 to 125°C, unless otherwise specified) LM7818A Symbol Description



17.3 - 18.7V VIN=21V to 33V,


∆VLINE Line Regulation - 45 180 mV VIN=21V to 33V, IO=500mA, TJ=25°C



- 0.3 0.8 VIN=21V to 33V, IO=500mA, TJ=25°C ∆IQ Quiescent Current




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





∆VO/∆T - 1.44 - mV/°C -


- 9 - TO-220


- 16 -

°C/ W

DPAK (TO-252)


Rev. B/LX

LM78xxA


Fig.1- Peak Output Current vs. Input/Output Differential Voltage

VIN-VO (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

Out

put C

urre

nt (A

)

Out

put V

olta

ge (V

)

Out

put V

olta

ge (V

)

Out

put V

olta

ge (V

)


Rev. B/LX

LM78xxA


Fig.6- Ripple Rejection vs. Frequency

Frequency (Hz)

Fig.5- Quiescent Current vs. Junction Temperature


Fig.7- Dropout Voltage vs. Junction Temperature


Fig.8- Power Dissipation vs. Junction Temperature


Typical Characteristics Curves (Continued)

Rip

ple

Rej

ectio

n (d

B)

Dro

pout

Vol

tage

(V)

Pow

er D

issi

patio

n (W

)

Qui

esce

nt C

urre

nt (m

A)


Rev. B/LX

LM78xxA


Fig.9- Line Transient (Conditions: IO=500mA, CO=0.1µF)

Time (100µs/Div)

Fig.10- Load Transient (Conditions: VIN=10V, CIN=0.33µF, CO=0.1µF)

Time (40µs/Div)

Typical Performance Characteristics

Typical Application

VIN

(5V/

Div

) ∆V

O (5

0mV/

Div

)

IO (1

A/D

iv)

∆VO

(100

mV/

Div

)


Rev. B/LX

LM78xxA


Dimensions in mm (inches)

TO-220


Rev. B/LX

LM78xxA


TO-220F


Rev. B/LX

LM78xxA


How to contact us:

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Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415

Email: [email protected] Http://www.taitroncomponents.com

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Tel: +86-21-5424-9942 Fax: +86-21-5424-9931

DPAK (TO-252)

1A Standard Positive Voltage Regulator LM78xxA Standard Positive Voltage Regulator ... • The...

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