Microchip Technology LM2575-12WT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.63 | $1.63 |
| 15+ | $1.58 | $23.70 |
| 25+ | $1.55 | $38.75 |
| 50+ | $1.46 | $73.00 |
| 100+ | $1.29 | $129.00 |
| N+ | $0.26 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | |
| Packaging | Tube | |
| 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) | 12V |
| Voltage - Output (Max) | - |
| Current - Output | 1A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-5 |
| Supplier Device Package | TO-220-5 |
| ROHS |
The LM2575-12WT from Microchip Technology is a simple, robust Buck DC-DC converter that delivers a fixed 12V output. It accepts a wide 4V to 40V input and provides up to 1A of load current. Operating at a low 52kHz switching frequency, it offers excellent efficiency and low noise. The TO-220-5 package is easy to heatsink and ideal for through-hole designs.
- Ultra-Wide Input Range (4V-40V): Handles a variety of supply voltages from automotive to industrial without additional circuitry.
- Simple Fixed 12V Output: No external feedback components needed, simplifying design and BOM.
- Low 52kHz Switching Frequency: Reduces EMI and allows for the use of low-cost, readily available inductors.
- TO-220-5 Package: Excellent thermal dissipation and easy mounting for high-reliability applications.
Automotive Battery Systems
With a 4V to 40V input range, this converter steps down 12V or 24V automotive batteries to a stable 12V rail for sensors and auxiliary loads.
Industrial Control Panels
In industrial environments with 24V supplies, the LM2575 provides a regulated 12V output for relays, valves, and PLC I/O modules.
Telecom Power Distribution
For telecom equipment operating from 36V-40V backplanes, this converter generates a 12V local rail for line cards and interface circuits.
Battery Chargers
The wide input range allows it to be used in battery charger circuits, stepping down unregulated DC sources to a 12V charging voltage.
HVAC and Appliance Controls
In HVAC systems with 24V AC rectified to DC, this buck converter provides a clean 12V supply for microcontrollers and display panels.
- Q: What type of converter is the LM2575-12WT?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 40V.
- Q: What is the output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of 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-220-5 package.
- Q: What type of converter is the LM2575-12WT?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 40V.
- Q: What is the output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: It can deliver up to 1A of 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-220-5 package.

LM2575-12WT.pdf