LM7818CT(2013) Просмотр технического описания (PDF) - Fairchild Semiconductor

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Компоненты Описание

производитель

LM7818CT
(Rev.:2013)

3-Terminal 1 A Positive Voltage Regulator

Fairchild Semiconductor 

Input

CI

1

0.33μF

LM7805

2

3

6

-2

LM741

+

3

4

Output

10kΩ

CO

0.1μF

IRI ≥ 5 IQ

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

Figure 12. Adjustable Output Regulator (7 V to 30 V)

Input

Q1 BD536

IQ1

R1

3Ω

R1 = VBEQ1

IREG–IQ1/ BQ1

1

IREG

0.33μF

3

LM78XX

2

Output

IO

0.1μF

IO = IREG + BQ1 (IREG–VBEQ1/R1)

Figure 13. High-Current Voltage Regulator

Input

RSC

Q1

Q2

R1

3Ω

Q1 = TIP42

Q2 = TIP42

1

0.33μF

LM78XX 3

2

0.1μF

RSC

=

VBEQ2

I SC

Figure 14. High Output Current with Short-Circuit Protection

Output

© 2006 Fairchild Semiconductor Corporation

LM78XX / LM78XXA Rev. 1.3.0

20

www.fairchildsemi.com

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