LM2592HVSX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2592HVSX-3.3/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, configured as a fixed-output step-down voltage regulator. It utilizes a buck topology to provide a stable 3.3 V output with a maximum current capability of 2 A. The device operates at a switching frequency of 150 kHz and accepts an input voltage range from 4.5 V to 60 V. Designed for surface-mount installation, it is housed in a TO-263-5 package. The component supports a wide operating temperature range from -40 °C to +125 °C and features a shutdown function to minimize quiescent current.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch enables direct connection to standard 48 V bus systems.
• Fixed 3.3 V output eliminates the need for external feedback resistors.
• Internal frequency compensation simplifies minimum external component requirements.
• Thermal shutdown protection safeguards against overheating during fault conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power architectures
• Pre-regulation for downstream linear regulators
• Efficient conversion from 48 V industrial bus voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the ordering suffix 'NOPB' confirms non-rohs-free status if required by specific compliance standards. Confirm the TO-263-5 package variant matches the thermal pad requirements of the target PCB layout. Ensure the fixed 3.3 V output aligns with system voltage needs, as adjustable variants exist within the same family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a 2 A output current is required, distinguishing it from the 1 A LM2591 series. The fixed 3.3 V output is suitable for applications avoiding external resistor networks. Consider the 150 kHz switching frequency for balancing efficiency and EMI. Verify input voltage does not exceed the 60 V maximum rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2592HV series, representing the high-voltage, higher-current iteration of the SIMPLE SWITCHER family. It shares architectural similarities with the LM2590 and LM2591 but provides increased output current capacity. The 'S' suffix indicates a surface-mount version, while 'X' denotes tape-and-reel packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2592HVS-3.3/NOPB (Tube packaging equivalent)

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM2592HVSX-3.3/NOPB available in an adjustable version?

Yes, the LM2592HVS-ADJ/NOPB provides an adjustable output range from 1.23 V to 57 V using the same package and pinout.

What is the maximum input voltage for this regulator?

The device supports an input voltage range up to 60 V, making it suitable for 48 V bus applications.