LM2599SX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599SX-ADJ/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a 150 kHz step-down voltage regulator. It operates with an input voltage range of 4.5 V to 40 V and provides an adjustable output voltage between 1.2 V and 37 V. The device supports a maximum output current of 3 A and utilizes a TO-263-8 (D2PAK) surface-mount package. Designed for high efficiency, it integrates a fixed-frequency oscillator and internal error amplifier for precise regulation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for high-efficiency DC-DC conversion
• Fixed 150 kHz switching frequency enables the use of compact external components
• Internal frequency compensation simplifies circuit design and reduces component count
• Built-in thermal shutdown and current limit protection ensures operational reliability

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against the manufacturer datasheet to confirm pinout compatibility and electrical specifications. Ensure the ordering part number matches the required package variant and temperature rating. Cross-reference the RoHS status and REACH compliance details directly with the official documentation before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3 A step-down capability is required within a 40 V input limit. The adjustable output configuration allows flexibility for various load requirements. Consider the TO-263-8 package for adequate thermal dissipation in space-constrained applications requiring high current handling without external pass transistors.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2599 series of SIMPLE SWITCHER power converters. It shares architectural similarities with the LM2596 but includes additional features such as a shutdown pin and improved line/load regulation. The series is widely used in industrial and commercial applications requiring reliable, efficient voltage stepping.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2596SX-ADJ/NOPB offers similar performance but lacks the shutdown feature. LM2599S-ADJ/NOPB is the through-hole equivalent using a TO-220 package. Verify pinout differences and thermal management requirements when substituting.