Datasheet

LM2575, NCV2575
http://onsemi.com
23
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
+V
in
= +7.0 V to +40 V
C
out
330 mF
/16 V
C1
100 mF
/50 V
LM2575−5.0
1
53ON
/OFFGND
+V
in
J1
Regulated Output
+V
out1
= 5.0 V @ 1.0 A
GND
in
GND
out
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.
+V
out1
+V
in
GND
in
GND
out
C1
L1
C2
D1
J1
U1 LM2575