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Typical application – Diodes AP3003 User Manual

Page 12

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150kHz 3A BUCK DC-DC CONVERTER AP3003

Data Sheet

12

Aug. 2008 Rev. 1. 2

BCD Semiconductor Manufacturing Limited

Figure 20. Typical Application of AP3003-5.0V

Figure 19. Typical Application of AP3003-3.3V

L1: Sumida CDRH127/LDNP-220MC or Equivalent

L1: Sumida CDRH127/LDNP-220MC or Equivalent

Typical Application

+

+

L1

22µH

D1

1N5822

C

OUT

ON/OFF

GND

V

IN

OUTPUT

FEEDBACK

220µF

C

IN

470µF

Regulated

DC Output

3A Load

AP3003-3.3V

4

2

5

3

1

+

+

L1

22

µH

D1

1N5822

C

OUT

ON/OFF

GND

V

IN

OUTPUT

FEEDBACK

220

µF

C

IN

470

µF

12V

Unregulated

DC Input

Regulated

DC Output

3A Load

AP3003-5.0V

4

2

5

3

1