LM2576
THE LM2576–5 STEP–DOWN VOLTAGE REGULATOR WITH 5.0 V @ 3.0 A OUTPUT POWER CAPABILITY.
TYPICAL APPLICATION WITH THROUGH–HOLE PC BOARD LAYOUT
Figure 35. Schematic Diagram of the LM2576–5 Step–Down Converter
Feedback
4
+V
in
Unregulated
DC Input
+V = 7.0 to 40 V
L1
150
LM2576–5
µ
H
1
Output
2
Regulated Output
= 5.0 V @ 3.0 A
in
V
out1
3
Gnd
5
ON/OFF
C1
µF
ON/OFF
100
C
1000
/16 V
out
D1
1N5822
/50 V
µF
Gnd
in
Gnd
out
C1
C2
D1
L1
–
–
–
–
100 µF, 50 V, Aluminium Electrolytic
1000 µF, 16 V, Aluminium Electrolytic
3.0 A, 40 V, Schottky Rectifier, 1N5822
150 µH, RL2444, Renco Electronics
Figure 36. Printed Circuit Board Layout
Component Side
Figure 37. Printed Circuit Board Layout
Copper Side
LM2576
U1
D1
+
C2
C1
V
ou
t
+
ON/OFF
L1
+V
in
Gnd
in
Gnd
out
NOTE: Not to scale.
NOTE: Not to scale.
22
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
