Microchip Technology LM2575-3.3WU-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.66 | $1.66 |
| 15+ | $1.61 | $24.15 |
| 25+ | $1.58 | $39.50 |
| 50+ | $1.49 | $74.50 |
| 100+ | $1.31 | $131.00 |
| N+ | $0.26 | 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 | 1A |
| 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 LM2575-3.3WU-TR from Microchip Technology is a step-down DC-DC converter providing a fixed 3.3V output. It operates from a wide input voltage range of 4V to 40V and delivers up to 1A of output current. With a fixed 52kHz switching frequency, it offers a simple and reliable power solution. The TO-263-6 (D2PAK) package is ideal for surface-mount applications requiring efficient thermal management. This converter is well-suited for automotive, industrial, and IoT applications.
- Compact Surface-Mount Package: TO-263-6 (D2PAK) enables automated assembly and space-saving PCB layouts.
- Wide Input Voltage Range: 4V to 40V input tolerance ensures compatibility with diverse power sources.
- Stable 3.3V Output: Fixed output simplifies design for logic and MCU power rails.
- Proven 52kHz Architecture: Balances efficiency and component size for cost-effective designs.
Battery-Powered Handheld Devices
Step down battery voltages (e.g., 9V or 12V) to a stable 3.3V rail for portable instruments, remote controls, and wearable devices. The 1A output is sufficient for low-power MCUs and sensors, while the 52kHz frequency keeps switching losses low for extended battery life.
Automotive Body Electronics
Convert 12V vehicle battery power to 3.3V for body control modules, lighting controllers, and infotainment systems. The wide 4V-40V input range ensures stable operation during cranking and load-dump events, providing a reliable supply for sensitive digital circuits.
Industrial Sensor Interfaces
Power 3.3V industrial sensors, transmitters, and fieldbus interfaces from 24V control loops. The D2PAK package offers a low-profile solution with good thermal dissipation, suitable for space-constrained PCB layouts in harsh environments.
Networking Peripherals
Supply 3.3V to Ethernet PHYs, switches, and small routers from 5V or 12V rails. The 1A current capability handles multiple ICs, while the simple external component requirement reduces design complexity and time-to-market.
Smart Home and IoT Gateways
Provide a regulated 3.3V supply for Wi-Fi modules, Zigbee controllers, and edge processors. The LM2575-3.3WU-TR's robust input range accommodates various wall adapters and battery configurations, ensuring consistent performance.
- Q: What type of converter is the LM2575-3.3WU-TR?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
LM2575-3.3WU-TR.pdf
- Q: What type of converter is the LM2575-3.3WU-TR?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of continuous output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
