LM2591HVSX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2591HVSX-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, utilizing a buck topology to provide a fixed 5 V output at up to 1 A. It operates with an input voltage range of 4.5 V to 60 V and features a switching frequency of 150 kHz. The device includes internal frequency compensation and a 5 mA quiescent current for efficient standby operation. Packaged in a TO-263-5 surface-mount format, it supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch rated for 60 V input
• Fixed 5 V output option eliminates external feedback resistors
• Internal frequency compensation simplifies design
• Shutdown pin enables low-power standby mode

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures
• Pre-regulators for post-switching regulators
• Battery-powered systems requiring step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance per manufacturer specifications. Confirm the package designation matches the required TO-263-5 footprint for PCB layout compatibility. Ensure the fixed 5.0 V output variant aligns with system requirements, as adjustable versions require external components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required with an input voltage up to 60 V. It is suitable for applications needing 1 A continuous current in a compact surface-mount package. Consider the LM2592HV series if higher output current capacity is necessary for the specific load profile.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2591HV family of SIMPLE SWITCHER converters, designed for high-efficiency step-down regulation. It integrates the control circuitry, oscillator, and power switch into a single monolithic IC, reducing the component count compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2591HVS-5.0/NOPB serves as a direct pin-compatible replacement for the through-hole version. For surface-mount designs, verify thermal performance differences between the TO-263-5 and alternative packages.