LM2599T-ADJ-NS

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599T-ADJ-NS is a SIMPLE SWITCHER power converter featuring a 150 kHz switching frequency and 3A step-down voltage regulation. It operates with an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage from 1.23 V to 37 V. The device utilizes pulse width modulation control mode and supports a maximum output current of 3 A, with a peak capability up to 7.5 A. It functions within a temperature range of -40 °C to 125 °C and employs a TO-220-7 (ZIP) package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic Buck switching regulator topology for efficient DC-DC conversion
• Fixed internal oscillator enables minimal external component count requirements
• Internal thermal shutdown protection safeguards against overheating conditions
• Adjustable output voltage configuration via single external resistor network

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring buck conversion
• Direct regulation from bus voltages in telecommunications equipment
• Pre-regulation stages for switch-mode power supplies
• Efficient on-card regulation modules for embedded applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific manufacturer designation when sourcing this part, as National Semiconductor assets are now managed by Texas Instruments. Confirm that the suffix 'NS' aligns with your required supply chain documentation and quality standards. Ensure the component meets all relevant regulatory compliance requirements for your intended deployment environment before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck regulator is needed with adjustable output flexibility. The TO-220-7 package facilitates effective heat dissipation for continuous 3A loads. Consider the 150 kHz switching frequency for balancing efficiency and passive component size. Validate that the input voltage range covers your system's operational extremes and that thermal management strategies support the specified junction temperature limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2599 family of SIMPLE SWITCHER regulators, designed for straightforward implementation of step-down DC-DC conversion. The family includes fixed voltage variants and adjustable versions like this model. It represents a mature technology platform widely used in industrial and commercial power management applications requiring reliable, high-current regulation with minimal external circuitry complexity.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Texas Instruments LM2599T-ADJ/NOPB serves as a direct functional replacement. Verify pinout compatibility and thermal performance characteristics match your existing design constraints. Review updated datasheets for any minor revisions in electrical specifications or recommended operating conditions between the original National Semiconductor and current TI manufacturing sources.