LM2591HVS-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2591HVS-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator with a fixed 5 V output. It operates at a switching frequency of 150 kHz and supports an input voltage range of 4.5 V to 60 V. The device delivers a maximum output current of 1 A through a single output channel. It utilizes a TO-263-5 (DDPAK-5) surface-mount package and includes internal shutdown functionality. The component is rated for operation within a junction temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology designed for high-efficiency step-down conversion
• Fixed 5 V output configuration eliminates external feedback resistor requirements
• Internal power switch enables simplified design with minimal external components
• Built-in thermal shutdown and current limiting protect against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power architectures
• Pre-regulation stages for downstream linear regulators
• Battery-powered systems requiring efficient voltage stepping
• Industrial control equipment power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and specific packaging options. Confirm the TO-263-5 package variant matches your PCB footprint requirements. Cross-reference the manufacturer datasheet for latest revision history and recommended operating conditions before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from a wide input voltage range up to 60 V. The 1 A current rating suits moderate load applications where efficiency is prioritized over precision. Consider the TO-263-5 package for its thermal performance in surface-mount designs compared to smaller packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2591HV series of SIMPLE SWITCHER converters. It shares architectural similarities with other members like the LM2592HV but differs in output current capability. The 'HV' designation indicates high-voltage input tolerance, distinguishing it from standard voltage variants within the broader regulator family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2591HVSX-5.0/NOPB offers identical electrical characteristics in an SMD reel or cut-tape format instead of tube packaging.