LM7818ACT Просмотр технического описания (PDF) - Fairchild Semiconductor

Номер в каталоге

Компоненты Описание

производитель

LM7818ACT

3-Terminal 1 A Positive Voltage Regulator

Fairchild Semiconductor 

Electrical Characteristics (LM7812) (Continued)

Refer to the test circuits. -40°C < TJ < 125°C, IO = 500mA, VI = 19V, 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

TJ = +25°C

Line Regulation(11)

5mA ≤ IO ≤ 1A, PO ≤ 15W,

VI = 14.5V to 27V

TJ = +25°C VI = 14.5V to 30V

Load Regulation(11)

VI = 16V to 22V

TJ = +25°C IO = 5mA to 1.5A

IO = 250mA to 750mA

Quiescent Current

TJ = +25°C

Quiescent Current Change IO = 5mA to 1A

Output Voltage Drift(12)

VI = 14.5V to 30V

IO = 5mA

Output Noise Voltage

Ripple Rejection(12)

f = 10Hz to 100kHz, TA = +25°C

f = 120Hz, VI = 15V to 25V

Dropout Voltage

Output Resistance(12)

IO = 1A, TJ = +25°C

f = 1kHz

Short Circuit Current

Peak Current(12)

VI = 35V, TA = +25°C

TJ = +25°C

11.5

11.4

–

–

–

–

–

–

–

–

–

55.0

–

–

–

–

12.0

12.0

10.0

3.0

11.0

5.0

5.1

0.1

0.5

-1.0

76.0

71.0

2.0

18.0

230

2.2

12.5

V

12.6

240

mV

120

240

mV

120

8.0

mA

0.5

mA

1.0

–

mV/°C

–

µV/VO

–

dB

–

V

–

mΩ

–

mA

–

A

Notes:

11. 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.

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

8

LM78XX/LM78XXA Rev. 1.0

www.fairchildsemi.com

Share Link: