LM2575

http://onsemi.com

22

THE LM2575−5.0 STEP−DOWN VOLTAGE REGULATOR WITH 5.0 V @ 1.0 A OUTPUT POWER

CAPABILITY. TYPICAL APPLICATION WITH THROUGH−HOLE PC BOARD LAYOUT

DC−DC Converter

Figure 35. Schematic Diagram of the LM2575−5.0 Step−Down Converter

Figure 36. Printed Circuit Board

Component Side

Figure 37. Printed Circuit Board

Copper Side

D1

1N5819

L1

330

mH

Output

2

4

Feedback

Unregulated

DC Input

330

mF

/16 V

C1

100

mF

/50 V

LM2575−5.0

1

5

3ON/OFF

GND

J1

Regulated Output

C1

−

100

mF, 50 V, Aluminium Electrolytic

C2

−

330

mF, 16 V, Aluminium Electrolytic

D1

−

1.0 A, 40 V, Schottky Rectifier, 1N5819

L1

−

330

mH, Tech 39: 77 458 BV, Toroid Core, Through−Hole, Pin 3 = Start, Pin 7 = Finish

NOTE: Not to scale.

NOTE: Not to scale.

C1

L1

C2

D1

J1

U1 LM2575