LM2575D2T-ADJG

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575D2T-ADJG is a monolithic integrated circuit step-down switching regulator from the LM2575 series, manufactured by onsemi. It operates with an input voltage range of 4.75V to 40V and delivers up to 1A output current. The device features adjustable output voltage capability and utilizes pulse width modulation (PWM) control at a fixed switching frequency of 52kHz. Packaged in a surface-mount TO-263-5 (D2PAK) configuration, it supports operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient DC-DC step-down conversion
• Adjustable output voltage regulation via external feedback network
• Internal fixed-frequency oscillator operating at 52kHz for simplified design
• Thermal shutdown and current limiting protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power systems
• Efficient pre-regulators for linear post-regulators
• Battery-powered equipment requiring high efficiency
• Simple step-down converters from standard 5V logic supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ADJG' confirms the adjustable voltage variant and RoHS compliance status. Confirm the D2PAK-5 package marking matches the datasheet specifications. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability. Check for any recent product change notices regarding pinout or thermal characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output adjustable buck converter is required with moderate current demands. It is suitable for designs prioritizing simplicity and low external component count. Consider the 52kHz switching frequency for applications where electromagnetic interference filtering is manageable. Evaluate thermal performance requirements given the TO-263 package constraints under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of simple-to-use step-down switching regulators. Unlike the higher-current LM2576 series, the LM2575 is optimized for 1A loads. The D2T suffix indicates the surface-mount D2PAK package variant, while ADJ denotes the adjustable output version. This family is widely used in industrial and commercial power supply designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575D2T-ADJR4G is a listed substitute option available from the manufacturer.