LM78LXXA 查看數據表（PDF） - Fairchild Semiconductor

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LM78LXXA

3-Terminal 0.1A Positive Voltage Regulator

Fairchild Semiconductor 

MC78LXXA/LM78LXXA/MC78L05AA

Electrical Characteristics(MC78L18A) (Continued)

(VI = 27V, IO = 40mA, 0°C ≤ TJ ≤ 125°C, CI = 0.33μF, CO = 0.1μF, unless otherwise specified. (Note1))

Parameter

Output Voltage

Line Regulation (Note1)

Load Regulation (Note1)

Symbol

VO

ΔVO

ΔVO

Output Voltage

VO

Quiescent Current

IQ

Quiescent Current With Line ΔIQ

Change

With Load ΔIQ

Output Noise Voltage

VN

Temperature Coefficient of VO ΔVO/ΔT

Ripple Rejection

RR

Dropout Voltage

VD

Conditions

TJ = 25°C

TJ = 25°C

21V ≤ VI ≤ 33V

22V ≤ VI ≤ 33V

TJ = 25°C

1mA ≤ IO≤100mA

1mA ≤ IO ≤ 40mA

21V ≤ VI ≤ 33V 1mA ≤ IO ≤ 40mA

21V ≤ VI ≤

VMAX (Note2)

1mA ≤ IO ≤ 70mA

TJ = 25°C

21V ≤ VI ≤ 33V

1mA ≤ IO ≤ 40mA

TA = 25°C, 10Hz ≤ f ≤ 100kHz

IO = 5mA

f = 120Hz, 23V ≤ VI ≤ 33V, TJ = 25°C

TJ = 25°C

Min.

17.3

-

-

-

-

17.1

17.1

-

-

-

-

-

34

-

Typ.

18

145

135

30

15

-

-

2.2

-

-

150

-1.8

48

1.7

Max. Unit

18.7 V

300 mV

250 mV

170 mV

85 mV

18.9 V

18.9 V

6.0 mA

1.5 mA

0.1 mA

- μV/Vo

- mV/°C

- dB

-

V

Note:

1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length

of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.

2. Power dissipation PD ≤ 0.75W.

7

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