Microchip Technology LM2576-3.3WU-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.70 | $1.70 |
| 15+ | $1.65 | $24.75 |
| 25+ | $1.61 | $40.25 |
| 50+ | $1.52 | $76.00 |
| 100+ | $1.34 | $134.00 |
| N+ | $0.27 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263-5 |
| ROHS |  |
The Microchip LM2576-3.3WU-TR is a fixed 3.3V output Buck (step-down) DC-DC converter. It accepts a wide input voltage from 4V to 40V and delivers a regulated 3.3V output with a guaranteed 3A load current. Operating at a fixed 52kHz, it requires only a few external components, simplifying design and reducing cost. The surface-mount D2PAK (TO-263) package is ideal for automated assembly and space-constrained applications in automotive, industrial, and networking equipment.
- Fixed 3.3V Output: Eliminates the need for external feedback resistors, simplifying the BOM and reducing design complexity.
- High Current Capability: Provides up to 3A, suitable for powering multiple digital ICs and peripherals.
- Wide Input Voltage Range: Handles 4V to 40V, making it robust for automotive and industrial power rails.
- Surface-Mount Package: The D2PAK package supports high-volume manufacturing and efficient heat dissipation.
High-Density Point-of-Load Regulation
The D2PAK package allows for a compact, surface-mount design, making it ideal for space-constrained PCBs where a 3.3V rail is needed from a 5V, 12V, or 24V input.
Automotive Electronics
With a 40V input rating, it can reliably step down automotive battery voltage (12V/24V) to 3.3V for microcontrollers, CAN transceivers, and sensor modules.
Networking and Communication Equipment
Provides a stable 3.3V supply for FPGAs, ASICs, and high-speed digital logic in routers, switches, and base stations, where efficiency and reliability are critical.
Industrial Control and Automation
In 24V industrial environments, it generates a clean 3.3V rail for PLCs, HMIs, and fieldbus interfaces, ensuring noise-free operation of sensitive digital circuits.
Consumer Electronics
Used in set-top boxes, gaming consoles, and smart home devices to convert a 12V adapter output to a low-noise 3.3V supply for processors and peripherals.
- Q: What type of converter is the LM2576-3.3WU-TR?
- A: It is a fixed 3.3V output Buck (step-down) DC-DC converter from Microchip Technology.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 40V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 3A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
LM2576-3.3WU-TR.pdf
- Q: What type of converter is the LM2576-3.3WU-TR?
- A: It is a fixed 3.3V output Buck (step-down) DC-DC converter from Microchip Technology.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 40V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 3A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
