LM2576D2T-ADJG

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576D2T-ADJG is a monolithic integrated circuit switching regulator from the LM2576 series, manufactured by onsemi. It is designed for step-down (buck) converter applications with an adjustable output voltage ranging from 1.23V to 37V. The device supports a maximum output current of 3A and operates within an input voltage range of 7V to 40V. It features a fixed switching frequency of 52kHz and includes internal frequency compensation and a 150mA driver transistor. The component is housed in a surface-mount TO-263 package with five pins and is rated for operation between -40°C and 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 52kHz fixed-frequency oscillator eliminates the need for external timing components
• Internal frequency compensation simplifies design requirements for stable regulation
• Built-in 150mA driver transistor reduces external component count and board space
• Adjustable output voltage capability allows flexible configuration across a wide range

Voltage Regulators - DC DC Switching Regulators Applications

• Step-down DC-DC power supply designs
• Positive or negative adjustable regulators
• Efficient pre-regulators for linear post-regulators
• Battery-powered systems requiring high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ADJG' against the manufacturer's official datasheet to confirm the adjustable output variant and RoHS compliance status. Ensure the TO-263 package dimensions match your PCB footprint requirements. Cross-reference the part number with authorized distributors to confirm current availability and authenticity before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing a buck converter requiring up to 3A load current with an adjustable output voltage. It is suitable for applications where a fixed 52kHz switching frequency is acceptable. Consider the thermal performance of the TO-263 package for heat dissipation needs. Verify that the input voltage range of 7V to 40V aligns with your system's power source constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of switching regulators, which are widely used for simple and convenient design of step-down converters. The series offers both fixed and adjustable output versions, providing flexibility for various power management applications. The LM2576D2T-ADJG specifically represents the surface-mount adjustable variant, maintaining the core functionality of the series while adapting to modern PCB assembly techniques.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576D2T-ADJR4G is a direct substitute offering the same adjustable functionality and specifications in a compatible surface-mount package.