KA7818A Просмотр технического описания (PDF) - Fairchild Semiconductor

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KA7818A

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

KA78XX/KA78XXA

Electrical Characteristics (KA7815)

(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =23V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)

Parameter

Output Voltage

Line Regulation (Note1)

Load Regulation (Note1)

Quiescent Current

Quiescent Current Change

Output Voltage Drift

Output Noise Voltage

Ripple Rejection

Dropout Voltage

Output Resistance

Short Circuit Current

Peak Current

Symbol

VO

Regline

Regload

IQ

∆IQ

∆VO/∆T

VN

RR

VDrop

rO

ISC

IPK

Conditions

KA7815

Unit

Min. Typ. Max.

TJ =+25 oC

14.4 15 15.6

5.0mA ≤ IO≤1.0A, PO≤15W

VI = 17.5V to 30V

14.25 15 15.75 V

TJ =+25 oC

VI = 17.5V to 30V

VI = 20V to 26V

- 11 300

mV

-

3 150

TJ =+25 oC

TJ =+25 oC

IO = 5mA to 1.5A

-

IO = 250mA to 750mA -

-

12 300

mV

4 150

5.2 8.0 mA

IO = 5mA to 1.0A

VI = 17.5V to 30V

IO = 5mA

f = 10Hz to 100KHz, TA =+25 oC

-

- 0.5

mA

-

- 1.0

-

-1

- mV/ oC

- 90 - µV/Vo

f = 120Hz

VI = 18.5V to 28.5V

IO = 1A, TJ=+25 oC

54 70 -

dB

-

2

-

V

f = 1KHz

VI = 35V, TA=+25 oC

TJ =+25 oC

- 19 - mΩ

- 250 - 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.

8

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