LM2575D2T-ADJR4

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575D2T-ADJR4G is a monolithic integrated circuit step-down switching regulator manufactured by onsemi. It operates with a fixed internal oscillator frequency of 52 kHz and supports an input voltage range from 4.75 V to 40 V. The device provides an adjustable output voltage ranging from 1.23 V to 37 V, with a maximum guaranteed output current of 1 A. It utilizes a D2PAK-5 surface-mount package and includes thermal shutdown and current limit protection features.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Adjustable output voltage capability via external resistor network
• Integrated 52 kHz fixed-frequency internal oscillator
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Simple and high-efficiency step-down (buck) regulators
• Efficient pre-regulator for linear regulators
• On-card switching regulators
• Positive to negative converters (buck-boost)
• Power supply for battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number against official documentation, as suffixes such as 'R4G' indicate specific packaging and environmental compliance details. Confirm component availability status, as this series may be subject to end-of-life notices or production changes. Ensure the selected variant matches the required package type and lead-free specifications for your assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an adjustable buck converter topology is required within a 40 V input limit. It is suitable for designs needing a 1 A load capacity with minimal external components. Consider the D2PAK-5 package for surface-mount applications requiring adequate thermal dissipation without through-hole mounting constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of Easy Switcher voltage regulators, originally developed by Motorola and now produced by onsemi. The series is known for its simplicity, requiring only four external components to function. It serves as a foundational solution for DC-DC conversion in various industrial and consumer electronics applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible substitutes include other LM2575-ADJ variants from different manufacturers such as Texas Instruments or Microchip, provided they match the 1 A current rating, 52 kHz switching frequency, and TO-263/D2PAK package footprint.