LM2576T-3.3G ON Semiconductor, LM2576T-3.3G Datasheet - Page 22

• Manufacturer Part Number: LM2576T-3.3G
• Description: IC REG SW 3A 3.3V STPDWN TO220-5
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck)r

Specifications of LM2576T-3.3G

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 3A
• Frequency - Switching: 52kHz
• Voltage - Input: 7 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: TO-220-5 (Straight Leads)
• Output Voltage: 3.3 V
• Output Current: 3 A
• Input Voltage: 4.75 V to 40 V
• Switching Frequency: 52 KHz
• Operating Temperature Range: - 40 C to + 125 C
• Mounting Style: Through Hole
• Duty Cycle (max): 98 %
• Primary Input Voltage: 12V
• No. Of Outputs: 1
• No. Of Pins: 5
• Filter Terminals: Through Hole
• Frequency: 52kHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: LM2576T-3.3GOS

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