LM2590HVS-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2590HVS-5.0 is a step-down switching regulator from the SIMPLE SWITCHER family, manufactured by Texas Instruments following its acquisition of National Semiconductor. It operates at a fixed 150 kHz frequency with a maximum output current of 1 A and an adjustable output voltage range of 1.2 V to 57 V. The device utilizes a buck topology and features a TO-263 package. It supports input voltages up to 60 V and functions within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch for simplified design
• Fixed-frequency operation reduces external component count
• Built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation modules
• Pre-regulators for post-switching regulators
• Efficient buck converters for battery-powered systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin carefully, as National Semiconductor was acquired by Texas Instruments. Confirm the specific suffix (e.g., NOPB) for lead-free compliance and RoHS status. Ensure the package type matches the required footprint, typically TO-263 or DDPAK variants.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.0 V output is required from higher input rails up to 60 V. It is suitable for applications needing moderate current capability around 1 A with minimal external circuitry. Consider the operating temperature range and thermal dissipation requirements inherent to the surface-mount package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2590HV series, designed for high-voltage step-down conversion. It simplifies power supply design by integrating the control logic and power switch into a single monolithic IC, reducing the need for complex compensation networks typically found in other switching regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include the LM2590HVS-ADJ/NOPB for adjustable output configurations. Other compatible parts within the same family are the LM2590HVS-3.3/NOPB for fixed 3.3 V outputs. Verify pin compatibility and thermal characteristics before substitution.