KA7810AE(2009) View Datasheet(PDF) - Fairchild Semiconductor

Part Name

Description

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KA7810AE
(Rev.:2009)

3-Terminal 1A Positive Voltage Regulator

Fairchild Semiconductor 

Input

CI

1

0.33µF

KA7805E

2

3

6

-2

KA741

+3

4

Output

10KΩ

CO

0.1µF

IRI ≥ 5 IQ

VO = VXX(1 + R2 / R1) + IQR2

Figure 13. Adjustable Output Regulator (7 to 30V)

Input

VI

IQ1

R1

1

3

KA78XXE

3Ω

IREG

2

0.33µF

Output

IO

Vo

0.1µF

IO = IREG + BQ1 (IREG–VBEQ1/R1)

Figure 14. High Current Voltage Regulator

Input

Q1

VI

Q2

R1

3Ω

Q1 = TIP42

Q2 = TIP42

RSC = VBEQ2

I SC

1 KA78XXE 3

0.33µF

2

0.1µF

Figure 15. High Output Current with Short Circuit Protection

Vo

Output

24

KA78XXE/KA78XXAE Rev. 1.0.2

www.fairchildsemi.com

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