LM2597N-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2597N-ADJ is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down voltage regulator with an adjustable output. It operates at a fixed switching frequency of 150 kHz and supports a maximum output current of 0.5 A. The device accepts an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage between 1.2 V and 37 V. It utilizes a through-hole MDIP-8 package and includes internal features such as a 5 mA typical quiescent current, thermal shutdown, and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for high-efficiency step-down conversion
• Includes internal frequency compensation and fixed 150 kHz oscillation for simplified external component requirements
• Features built-in thermal shutdown and cycle-by-cycle current limiting for robust operation under fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring efficient voltage regulation
• Pre-regulators for linear post-regulator circuits
• Battery-powered applications utilizing step-down topology

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' confirms the through-hole MDIP package variant rather than surface-mount options. Ensure the 'ADJ' designation matches the requirement for an adjustable output voltage configuration. Confirm RoHS compliance status via the manufacturer's official documentation before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole mounting solution is required for a 0.5 A buck converter application. The LM2597N-ADJ is suitable for designs needing an input voltage up to 40 V. Consider alternative packages like SOIC or DPAK if space constraints necessitate surface-mount technology instead of through-hole implementation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2597 family of SIMPLE SWITCHER converters, which are widely used for general-purpose DC-DC step-down applications. The LM2597 series distinguishes itself by integrating the switch, controller, and freewheeling diode into a single monolithic IC, reducing the bill of materials and board space compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2596N-ADJ: Compatible pinout and functionality but limited to a 40 V maximum input voltage rating.