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 (KA7910) (Continued)

(VI = -17V, IO = 500mA, 0°C ≤TJ ≤ +125°C, CI =2.2µF, CO =1µF, unless otherwise specified.)

Parameter

Output Voltage

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current

Quiescent Current Change

Temperature Coefficient of VO

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Short Circuit Current

Peak Current

Symbol

VO

∆VO

∆VO

IQ

∆IQ

∆Vo/∆T

VN

RR

VD

ISC

IPK

Conditions

TJ = +25°C

IO = 5mA to 1A, PO ≤ 15W

VI = -12V to -28

TJ = +25°C

VI = -12.5V to -28V

VI = -14V to -20V

TJ = +25°C, IO = 5mA to 1.5A

TJ = +25°C, IO = 250mA to 750mA

TJ = +25°C

IO = 5mA to 1A

VI = -12.5 to -28V

IO = 5mA

10Hz ≤ f ≤ 100kHz, TA = +25°C

f = 120Hz, ∆VI = 10V

TJ = +25°C, IO = 1A

TJ = +25°C, VI = -35V

TJ = +25°C

Min.

-9.6

-9.5

-

-

-

-

-

-

-

-

-

54

-

-

-

Typ. Max. Unit

-10 -10.4

V

-10 -10.5

12 200

mV

6 100

12 200

mV

4 100

3

6 mA

0.05 0.5

mA

0.1 1

-1

- mV/°C

280 -

µV

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.

6

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