LM2576T-3.3G ON Semiconductor, LM2576T-3.3G Datasheet - Page 2

• 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

Unregulated
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
MAXIMUM RATINGS
DC Input
Maximum Supply Voltage
ON/OFF Pin Input Voltage
Output Voltage to Ground (Steady−State)
Power Dissipation
Storage Temperature Range
Minimum ESD Rating (Human Body Model: C = 100 pF, R = 1.5 kW)
Lead Temperature (Soldering, 10 seconds)
Maximum Junction Temperature
Case 314B and 314D (TO−220, 5−Lead)
Case 936A (D
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
Thermal Resistance, Junction−to−Ambient
Thermal Resistance, Junction−to−Case
C
in
2
PAK)
Feedback
+V
1
4
in
Unregulated
7.0 V − 40 V
DC Input
R2
R1
1.0 k
Band−Gap
Reference
Representative Block Diagram and Typical Application
1.235 V
Typical Application (Fixed Output Voltage Versions)
Rating
Figure 1. Block Diagram and Typical Application
Fixed Gain
Error Amplifier
100 mF
18 kHz
Freq
Shift
C
in
This device contains 162 active transistors.
Oscillator
+V
52 kHz
in
1
Comparator
3.1 V Internal
Regulator
3
http://onsemi.com
LM2576
GN
D
LM2576
5
Reset
Latch
ON/OFF
2
Current
Limit
ON/OFF
Output
Feedback
4
2
Shutdown
Thermal
Driver
D1
1N5822
100 mH
L1
1.0 Amp
Symbol
Switch
R
R
R
R
C
1000 mF
T
V
P
P
T
out
qJA
qJC
qJA
qJC
−
−
stg
−
−
in
D
D
J
5.0 V Regulated
Output 3.0 A Load
ON/OFF
Output
GND
5
2
3
−0.3 V ≤ V ≤ +V
Internally Limited
Internally Limited
−65 to +150
Voltage Versions
For adjustable version
R1 = open, R2 = 0 W
Value
−1.0
260
150
5.0
5.0
2.0
45
65
70
D1
Output
3.3 V
5.0 V
12 V
15 V
L1
in
C
out
8.84 k
11.3 k
1.7 k
3.1 k
Regulated
(W)
°C/W
°C/W
°C/W
°C/W
R2
Unit
Output
°C
kV
°C
°C
W
W
V
V
V
Load
V
out