7812 datasheet(4/8 Pages) NSC

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Electrical Characteristics LM78XXC (Note 2) (Continued)

0˚C

≤ T

J ≤ 125˚C unless otherwise noted.

Output Voltage

12V

15V

Input Voltage (unless otherwise noted)

10V

19V

23V

Units

Symbol

Parameter

Conditions

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Short-Circuit

Current

Tj = 25˚C

2.1

1.5

1.2

Peak Output

Current

Tj = 25˚C

2.4

Average TC of

OUT

0˚C

≤ Tj ≤ +125˚C, I

O = 5 mA

0.6

1.5

1.8

mV/˚C

Input Voltage

Required to

Maintain

Tj = 25˚C, I

O ≤ 1A

7.5

14.6

17.7

Line Regulation

Note 1: Thermal resistance of the TO-3 package (K, KC) is typically 4˚C/W junction to case and 35˚C/W case to ambient. Thermal resistance of the TO-220 package

(T) is typically 4˚C/W junction to case and 50˚C/W case to ambient.

Note 2: All characteristics are measured with capacitor across the input of 0.22 µF, and a capacitor across the output of 0.1µF. All characteristics except noise voltage

and ripple rejection ratio are measured using pulse techniques (tw ≤ 10 ms, duty cycle ≤ 5%). Output voltage changes due to changes in internal temperature must

be taken into account separately.

Note 3: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and the test conditions, see Elec-

trical Characteristics.

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