LM2599SX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599SX-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-down switching regulator. It operates with an input voltage range of 4.5V to 40V and provides a fixed 5V output at up to 3A. The device integrates a 150kHz oscillator for reduced external component size. Key electrical parameters include a maximum input voltage of 40V, minimum input voltage of 4.5V, and a maximum output current of 3A. It features ±4% output voltage tolerance and operates within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates internal frequency compensation and a fixed-frequency oscillator to minimize external component count.
• Includes thermal shutdown and current limit protection for robust operation under fault conditions.
• Supports external shutdown functionality to achieve low standby current consumption.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulators for switching regulators
• Efficient straight-through DC/DC converters

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' corresponds to the D2PAK (TO-263) surface-mount package variant. Confirm the '-NOPB' designation indicates lead-free and RoHS compliance status. Ensure the ordering part number matches the required 3A output capability and fixed 5V configuration before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a high-efficiency, fixed-output buck converter is required for inputs up to 40V. It is suitable for designs needing minimal external components and integrated protection features. Consider the TO-263 package for thermal management requirements in space-constrained applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2599 series of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2596 and LM2595 but offers higher output current capabilities. The series is designed for ease of use with standard inductors, simplifying power supply design workflows.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2599S-5.0/NOPB is the equivalent non-suffix variant. LM2596SX-5.0/NOPB is a lower-current alternative. LM2598SX-5.0/NOPB offers similar functionality with different pinout characteristics.