LM7818I 查看數據表（PDF） - Fairchild Semiconductor

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LM7818I

3-TERMINAL 1A POSITIVE VOLTAGE REGULATORS

Fairchild Semiconductor 

LM78XX (KA78XX, MC78XX) FIXED VOLTAGE REGULATOR (POSITIVE)

LM7805A/RA ELECTRICAL CHARACTERISTICS

(Refer to the test circuits. TJ = 0 to +I25 °C, IO = 1A, V I = 10V, C I= 0.33µF, C O= 0.1µF, unless otherwise specified)

Characteristic

Output Voltage

Line Regulation

Load Regulation

Quiescent Current

Quiescent Current Change

Output Voltage Drift

Symbol

Test Conditions

VO

∆VO

∆VO

IQ

∆IQ

∆V/∆T

TJ =+25 °C

IO = 5mA to 1A, PD ≤ 5W

VI = 7.5 to 20V

VI = 7.5 to 25V

IO = 500mA

VI = 8V to 12V

TJ =+25 °C VI= 7.3V to 25V

VI= 8V to 12V

TJ =+25 °C

IO = 5mA to 1.5A

IO = 5mA to 1A

IO = 250 to 750mA

TJ =+25 °C

IO = 5mA to 1A

VI = 8 V to 25V, IO = 500mA

VI = 7.5V to 20V, TJ =+25 °C

IO = 5mA

Min Typ Max

Unit

4.9

5

5.1

4.8

5

5.2

V

5

50

3

50

V

5

50

1.5

25

9

100

9

100

V

4

50

5.0

6

mA

0.5

0.8

mA

0.8

-0.8

mV/ °C

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

f = 10Hz to 100KHz

VN

TA =+25 °C

RR f = 120Hz, IO = 500mA

VI = 8V to 18V

VD

IO = 1A, TJ =+25 °C

RO f = 1KHz

ISC

VI= 35V, TA =+25 °C

IPK

TJ= +25 °C

10

µV/VO

68

dB

2

V

17

mΩ

250

mA

2.2

A

*Load and line regulation are specified at constant, junction temperature. Change in VO due to heating effects must be taken

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

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