LM2591HVT-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2591HVT-ADJ/NOPB 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 an adjustable output voltage between 1.2 V and 57 V. The device delivers a maximum output current of 1 A at a switching frequency of 150 kHz. Packaged in a TO-220 through-hole format, it supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller for high-efficiency buck conversion
• Fixed-frequency operation simplifies external component selection
• Internal thermal shutdown protects against overheating
• Adjustable output voltage via external resistor divider

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• On-card regulation for boards powered by higher bus voltages
• Efficient pre-regulators for linear post-regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the package type matches the target PCB footprint, specifically the TO-220 configuration. Confirm the suffix indicates the adjustable version rather than fixed voltage variants. Ensure environmental compliance requirements align with RoHS specifications. Cross-reference the manufacturer part number to avoid confusion with non-NOPB equivalents or different pinout packages.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high input voltage tolerance up to 60 V is required alongside a 1 A load capacity. The adjustable output feature allows flexibility for varying system rail requirements. Consider the through-hole package for applications requiring robust mechanical mounting or easier manual assembly compared to surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2591HV series, designed for high-voltage step-down applications. It integrates a 1-A switch and controls the duty cycle to regulate output voltage. The SIMPLE SWITCHER architecture reduces design complexity by minimizing external components needed for stable operation across wide input ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2591HVSX-ADJ/NOPB offers identical electrical performance in a surface-mount TO-263 package.