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LM7818ACT

3-Terminal 1 A Positive Voltage Regulator

Fairchild Semiconductor 

Electrical Characteristics (LM7815) (Continued)

Refer to the test circuits. -40°C < TJ < 125°C, IO = 500mA, VI = 23V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.

Symbol

Parameter

Conditions

Min. Typ. Max. Unit

VO

Regline

Regload

IQ

∆IQ

∆VO/∆T

VN

RR

VDROP

rO

ISC

IPK

Output Voltage

Line Regulation(13)

Load Regulation(13)

Quiescent Current

Quiescent Current Change

Output Voltage Drift(14)

Output Noise Voltage

Ripple Rejection(14)

Dropout Voltage

Output Resistance(14)

Short Circuit Current

Peak Current(14)

TJ = +25°C

5mA ≤ IO ≤ 1A, PO ≤ 15W,

VI = 17.5V to 30V

TJ = +25°C VI = 17.5V to 30V

VI = 20V to 26V

TJ = +25°C IO = 5mA to 1.5A

IO = 250mA to 750mA

TJ = +25°C

IO = 5mA to 1A

VI = 17.5V to 30V

IO = 5mA

f = 10Hz to 100kHz, TA = +25°C

f = 120Hz, VI = 18.5V to 28.5V

IO = 1A, TJ = +25°C

f = 1kHz

VI = 35V, TA = +25°C

TJ = +25°C

14.4

14.25

–

–

–

–

–

–

–

–

–

54.0

–

–

–

–

15.0

15.0

11.0

3.0

12.0

4.0

5.2

–

–

-1.0

90.0

70.0

2.0

19.0

250

2.2

15.6

V

15.75

300

mV

150

300

mV

150

8.0

mA

0.5

mA

1.0

–

mV/°C

–

µV/VO

–

dB

–

V

–

mΩ

–

mA

–

A

Notes:

13. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must

be taken into account separately. Pulse testing with low duty is used.

14. These parameters, although guaranteed, are not 100% tested in production.

9

LM78XX/LM78XXA Rev. 1.0

www.fairchildsemi.com

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