LM2576-12 MOTOROLA [Motorola, Inc], LM2576-12 Datasheet - Page 22

• Manufacturer Part Number: LM2576-12
• Description: Easy Switcher 3.0A Step-Down Voltage Regulator
• Manufacturer: MOTOROLA [Motorola, Inc]

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