LM2592HVSX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2592HVSX-ADJ/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, operating at a fixed switching frequency of 150 kHz. It utilizes a buck topology to provide an adjustable output voltage ranging from 1.2 V to 57 V with a maximum output current of 2 A. The device accepts an input voltage range of 4.5 V to 60 V and features a typical quiescent current of 5 mA. Designed for surface-mount applications, it is housed in a TO-263-5 package and supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch enables direct connection to standard 48 V bus supplies without external components.
• Fixed 150 kHz internal oscillator eliminates the need for external timing resistors or capacitors.
• Built-in thermal shutdown circuitry protects the device against excessive junction temperatures during overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring step-down conversion from higher voltage rails
• On-card regulation for boards powered directly by 48 V telecom or industrial buses
• Pre-regulator stages for downstream switching regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix matches NOPB to ensure compliance with RoHS standards and absence of hazardous substances. Confirm the specific package variant corresponds to the SMD/TO-263-5 form factor required for the target PCB layout. Ensure the design accounts for the specified thermal performance limits within the stated ambient temperature range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output buck converter is needed with an input voltage up to 60 V and a load current requirement of 2 A. The adjustable output version allows flexibility in setting the regulated voltage via external feedback resistors. Consider the TO-263-5 package for its thermal dissipation capabilities compared to smaller surface-mount options.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2592HV series of SIMPLE SWITCHER converters, which are designed for high-efficiency step-down applications. It shares architectural similarities with other members of the family but is distinguished by its adjustable output capability and specific 2 A current rating. The HV designation indicates enhanced input voltage handling suitable for industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2592HVS-ADJ/NOPB serves as a tube-packaged equivalent with identical electrical specifications. LM2592HVSX-ADJ is the non-NOPB variant sharing the same reel packaging and core functionality. Cross-reference datasheets to confirm pinout compatibility and thermal characteristics before substitution.