Parameter

Symbol

Typ

Unit

Input Voltage

V

I

35

V

Output Voltage

V

O

12.0

V

Peak Current

I

PK

2.2

A

Operating Temperature

Range

T

OPR

0~125

Storage Temperature Rang

e

T

STG

-65~150

LM7812F

GENERAL DESCRIPTION

3-Terminal 1.0A Positive Voltage Regulator

The LM7812F series of three terminal positive regulators are available in the TO-220F package and with

several fixed output voltages, making them useful in a wide range of applications. Each type employs

internal current limiting, thermal shut down and safe operating area protection, making it essentially

indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. Although

designed primarily as fixed voltage regulators, these devices can be used with external components to

obtain adjustable voltages and currents.

Product specification

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(Refer to test circuit, Io = 500mA, Vi = 19V, Ci= 0.33uF, Co=0.1uF unless otherwise specified)

( Ta = 25 C)

O

( Ta = 25 C)

O

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Output Voltage

V

O

Tj = 25

℃ V

I

11.64

12.0

12.36

V

Line Regulation

△V

o

Tj = 25

℃, Vi=15V ~ 30V

—

—

240

mV

Tj = 25

℃，V

—

—

120

Load Regulation

△V

o

Tj = 25

℃, I

—

—

240

mV

Tj = 25

℃ I

—

—

120

Quiescent Current

I

Q

T

—

—

8.0

mA

Quiescent Current

Change

△IQ

Io = 5.0

ｍA ~ 1.0A

0.5

mA

Tj = 25

℃, Vi = 15V ~ 25V

1.0

mA

Output voltage drift

△Vo/△T Io = 5.0ｍA

-1.0

mV/

℃

Ripple Rejection

RR

f = 120Hz, V

56

80

—

dB

Dropout Voltage

V

Drop

I

—

2.0

—

V

Output Resistance

R

O

f = 1KHz

—

0.018

—



Short Circuit Current

I

SC

V

—

230

—

mA

Peak Current

I

PK

T

—

—

2.2

A

TO-220F

1 2 3

1: IN

2: GND

3: OUT

TIGER ELECTRONIC CO.,LTD