LM2576SX-3.3/NOPB National Semiconductor, LM2576SX-3.3/NOPB Datasheet - Page 2

• Manufacturer Part Number: LM2576SX-3.3/NOPB
• Description: IC REG SW 3.3V 3A STP DN TO263-5
• Manufacturer: National Semiconductor
• Series: SIMPLE SWITCHER®r
• Type: Step-Down (Buck)r

Specifications of LM2576SX-3.3/NOPB

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V
• Current - Output: 3A
• Frequency - Switching: 52kHz
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: D²Pak, TO-263 (5 leads + tab)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Other names: *LM2576SX-3.3; *LM2576SX-3.3/NOPB; LM2576SX-3.3

Temperature
www.national.com
−40˚C ≤ T
≤ 125˚C
Block Diagram
3.3V R2 = 1.7k
5V, R2 = 3.1k
12V, R2 = 8.84k
15V, R2 = 11.3k
For ADJ. Version
R1 = Open, R2 = 0Ω
Patent Pending
Ordering Information
Range
A
LM2576HVS-3.3
LM2576S-3.3
LM2576HVSX-3.3 LM2576HVSX-5.0 LM2576HVSX-12 LM2576HVSX-15 LM2576HVSX-ADJ
LM2576SX-3.3
LM2576HVT-3.3
LM2576T-3.3
LM2576HVT-3.3
Flow LB03
LM2576T-3.3
Flow LB03
3.3
LM2576HVS-5.0
LM2576S-5.0
LM2576SX-5.0
LM2576HVT-5.0
LM2576T-5.0
LM2576HVT-5.0
Flow LB03
LM2576T-5.0
Flow LB03
5.0
Output Voltage
LM2576HVS-12 LM2576HVS-15 LM2576HVS-ADJ
LM2576S-12
LM2576SX-12
LM2576HVT-12 LM2576HVT-15 LM2576HVT-ADJ
LM2576T-12
LM2576HVT-12 LM2576HVT-15 LM2576HVT-ADJ
Flow LB03
LM2576T-12
Flow LB03
12
2
LM2576S-15
LM2576SX-15
LM2576T-15
Flow LB03
LM2576T-15
Flow LB03
15
LM2576S-ADJ
LM2576SX-ADJ
LM2576T-ADJ
Flow LB03
LM2576T-ADJ
Flow LB03
ADJ
NS Package Package
Tape & Reel
Number
TS5B
TS5B
T05A
T05D
01147602
TO-263
TO-220
Type