LM2575D2T-5R4G Datasheet

1.0 A, Adjustable Output Voltage, Step-Down Switching Regulator


The LM2575 series of regulators are monolithic integrated circuits ideally suited for easy and convenient design of a step−down switching regulator (buck converter). All circuits of this series are capable of driving a 1.0 A load with excellent line and load regulation.

These devices are available in fixed output voltages of 3.3 V, 5.0 V,12 V, 15 V, and an adjustable output version. These regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors optimized for use with the LM2575 are offered by several different inductor manufacturers.

•3.3 V, 5.0 V, 12 V, 15 V, and Adjustable Output Versions
•Adjustable Version Output Voltage Range of 1.23 V to 37 V ±4%
Maximum Over Line and Load Conditions
•Guaranteed 1.0 A Output Current
•Wide Input Voltage Range: 4.75 V to 40 V
•Requires Only 4 External Components
•52 kHz Fixed Frequency Internal Oscillator
•TTL Shutdown Capability, Low Power Standby Mode
•High Efficiency
•Uses Readily Available Standard Inductors
•Thermal Shutdown and Current Limit Protection
•Moisture Sensitivity Level (MSL) Equals 1
•Pb−Free Packages are Available

•Simple and High−Efficiency Step−Down (Buck) Regulators
•Efficient Pre−Regulator for Linear Regulators
•On−Card Switching Regulators
•Positive to Negative Converters (Buck−Boost)
•Negative Step−Up Converters
•Power Supply for Battery Chargers



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Manufacturer information


ON Semiconductor - ON Semiconductor (Nasdaq: ON) is driving energy efficient innovations, empowering customers to reduce global energy use. The company offers a comprehensive portfolio of energy efficient power and signal management, logic, discrete and custom solutions to help design engineers solve their unique design challenges in automotive, communications, computing, consumer, industrial, LED lighting, medical, military/aerospace and power supply applications. ON Semiconductor operates a responsive, reliable, world-class supply chain and quality program, and a network of manufacturing facilities, sales offices and design centers in key markets throughout North America, Europe, and the Asia Pacific regions.

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