LM2575HVS-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVS-ADJ/NOPB is a high-voltage step-down switching regulator from Texas Instruments, operating in a TO-263-5 surface-mount package. It delivers a maximum output current of 1 A with an adjustable output voltage range spanning from 1.23 V to 57 V. The device supports a maximum input voltage of 60 V and operates at a fixed switching frequency of 52 kHz. It functions within an extended temperature range of -40 °C to +125 °C and includes internal features such as a 10 mA quiescent current and shutdown capability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch rated for up to 60 V input
• Adjustable output voltage configuration via external feedback network
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Pre-regulators for downstream linear regulators
• Battery-powered equipment with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free and RoHS compliance per manufacturer specifications. Confirm the TO-263-5 package variant matches the required PCB footprint. Ensure the ADJ designation aligns with the desired adjustable output voltage architecture rather than fixed voltage options.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 36 V limits but require only 1 A output current. The adjustable version offers flexibility for custom voltage rails compared to fixed-output variants. Consider the thermal performance of the TO-263 package for heat dissipation requirements in enclosed environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575HV series of SIMPLE SWITCHER regulators, designed for high-input voltage applications. It serves as a robust alternative to lower-voltage buck converters in industrial and automotive contexts where input supplies may spike or operate at elevated potentials.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible substitutes include other LM2575HV-ADJ variants from Texas Instruments. Verify equivalent current ratings and thermal characteristics when cross-referencing with older National Semiconductor versions.