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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 Surface Mount
Package / Case TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Supplier Device Package TO-263-5
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The LM2575-12WU from Microchip Technology is a simple and reliable step-down switching regulator that provides a fixed 12V output. It accepts a wide input voltage from 4V to 40V and delivers up to 1A of load current. With a switching frequency of 52kHz, it offers a good balance between efficiency and component size. Housed in a TO-263-6 (D2PAK) package, this regulator is ideal for automotive, industrial, and networking applications requiring a robust and easy-to-use power solution.

  • Wide Input Voltage: Handles 4V to 40V, making it versatile for various power sources.
  • Simple Design: Requires minimal external components, simplifying PCB layout and BOM.
  • Robust Package: The D2PAK package offers excellent thermal performance for high-power applications.
  • Proven Technology: Based on the industry-standard LM2575 family, ensuring reliability and availability.

Automotive Power Supplies

The wide 4V to 40V input range makes the LM2575-12WU suitable for automotive systems that need a regulated 12V supply from a vehicle's battery, which can vary significantly during operation.

Industrial Control Systems

In industrial environments with 24V or 48V rails, this buck converter steps down to a stable 12V for logic circuits, relays, and sensors, offering a simple and robust solution.

Networking Equipment

For routers and switches that require a 12V bus, the LM2575-12WU provides a reliable and cost-effective power conversion from higher voltage supplies.

Telecom Infrastructure

Telecom systems often use 48V backplanes; this regulator efficiently converts that to 12V for line cards and auxiliary circuitry.

Consumer Electronics

In appliances and gaming consoles, the LM2575-12WU can generate a 12V rail from a rectified AC input, simplifying the power supply design.

Q: What type of converter is the LM2575-12WU?
A: It is a step-down (Buck) switching regulator.
Q: What is the input voltage range?
A: The input voltage range is from 4V to 40V.
Q: What is the fixed output voltage?
A: It provides a fixed 12V output.
Q: What is the maximum load current?
A: It can deliver up to 1A of load 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.
Base Product Number : LM2575-12
12V Output 1A 4V-40V 52kHz Automotive Buck DC-DC Converter Industrial TO-263-6
Q: What type of converter is the LM2575-12WU?
A: It is a step-down (Buck) switching regulator.
Q: What is the input voltage range?
A: The input voltage range is from 4V to 40V.
Q: What is the fixed output voltage?
A: It provides a fixed 12V output.
Q: What is the maximum load current?
A: It can deliver up to 1A of load 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.