LM2591HVS-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2591HVS-ADJ is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator. It operates with an input voltage range of 4.5 V to 60 V and provides a maximum output current of 1 A. The switching frequency is fixed at 150 kHz. The device supports adjustable output voltages ranging from 1.2 V to 57 V. It utilizes a TO-263-5 package for surface mount installation. The operational temperature range spans from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch rated for up to 60 V input
• Fixed 150 kHz switching frequency reduces external component size
• Adjustable output voltage capability via external resistor network
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator stages for downstream linear regulators
• Efficient buck conversion for battery-powered equipment
• Industrial control system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix codes on the datasheet to confirm pinout compatibility and RoHS status. Ensure the TO-263-5 footprint matches your PCB design constraints. Confirm that the required output voltage range falls within the 1.2 V to 57 V specification before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output buck converter is needed with high input voltage tolerance. The 1 A current rating suits moderate load applications. Consider the TO-263-5 package for its thermal performance relative to smaller SMD packages. Verify that the 150 kHz frequency aligns with your EMI and efficiency requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2591HV series, which are monolithic integrated circuits designed for easy-to-use step-down switching regulators. The series is known for requiring minimal external components. The 'HV' designation indicates high-voltage input capability, distinguishing it from standard low-voltage counterparts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2591HVSX-ADJ/NOPB is a direct equivalent variant with identical electrical specifications and pinout configuration.