KA7905 查看數據表（PDF） - Fairchild Semiconductor

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KA7905

3-Terminal 1A Negative Voltage Regulator

Fairchild Semiconductor 

KA79XX/KA79XXA

Electrical Characteristics (KA7905A) (Continued)

(VI = -10V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.)

Parameter

Output Voltage

Symbol

VO

Line Regulation (Note1)

∆VO

Load Regulation (Note1)

∆VO

Quiescent Current

IQ

Quiescent Current Change

∆IQ

Temperature Coefficient of VD

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short Circuit Current

Peak Current

∆Vo/∆T

VN

RR

VD

ISC

IPK

Conditions

TJ = +25°C

IO = 5mA to 1A, PO ≤ 15W

VI = -7V to -20V

TJ = +25°C

VI = -7V to -20V

IO = 1A

VI = -8V to -12V

IO = 1A

VI = -7.5V to -25V

VI = -8V to -12V, IO=1A

IO = 5mA to 1.5A

TJ = +25°C

TJ =+25°C, IO = 250mA to 750mA

TJ =+25°C

IO = 5mA to 1A

VI = -8V to -25V

IO = 5mA

f = 10Hz to 100kHz, TA =+25°C

f = 120Hz, ∆VI = 10V

TJ = +25°C, IO = 1A

TJ = +25°C, VI = -35V

TJ = +25°C

Min. Typ. Max. Unit

-4.9 -5.0 -5.1

V

-4.8 -5.0 -5.2

-

5 50

-

2

25 mV

-

7 50

-

7 50

-

10 100

mV

-

3 50

-

3

6 mA

- 0.05 0.5

mA

- 0.1 0.8

- -0.4 - mV/°C

-

40

-

µV

54 60

-

dB

-

2

-

V

- 300 -

mA

- 2.2 -

A

Note

1. 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.

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