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LM2576SX-5.0/NOPB Breakout
IC REG BUCK 5V 3A TO263
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£7.23
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Design a Custom BoardAbout This Component
Switching buck regulator IC delivering 5V at up to 3A output current. Features integrated high-current switch, feedback divider, and thermal shutdown protection. Suitable for board-level power conversion applications requiring step-down regulation from higher input voltages.
Package: TO-263-2 · 3 pins
Why does this need a breakout?
This SMD package requires a breakout board to interface with breadboards and standard prototyping layouts. The three-pin configuration with large copper pad underneath demands reflow soldering or careful hand-soldering to avoid cold joints, making a breakout board with standard 0.1" headers essential for reliable connections. Ideal for power regulators and MOSFETs where thermal performance and ease of iteration matter.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Texas Instruments |
| Part Number | LM2576SX-5.0/NOPB |
| Package | TO-263-2 |
| Pin Count | 3 |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Topology | Buck |
| Voltage - Input (Max) | 40V |
| Voltage - Input (Min) | 4V |
| Voltage - Output (Min/Fixed) |
What's Included
BILL OF MATERIALS
- 1x LM2576SX-5.0/NOPB soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS