LM2599S-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2599S-5.0/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a 1A step-down switching regulator. It operates with an input voltage range of 4.5V to 40V and provides a fixed 5.0V output. The device utilizes a TO-263 (DDPAK-7) surface-mount package and supports an operating junction temperature range from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for simple application with minimal external components
• Includes internal frequency compensation and a fixed-frequency oscillator for stable operation
• Features thermal shutdown and current limiting protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring step-down conversion
• Pre-regulator circuits for linear regulators
• Simple efficient buck converters for battery-powered applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor was acquired by Texas Instruments. Ensure the ordering suffix matches the required package type and lead-free status. Confirm that the specific variant corresponds to the intended output voltage and current rating before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from a higher input voltage up to 40V. Consider the 1A output capability and TO-263 package for thermal management. Evaluate if the synchronous rectification or higher current options in the LM2599 series are necessary for the specific load requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM259x family of SIMPLE SWITCHER regulators. While originally associated with National Semiconductor, these devices are now manufactured and supported by Texas Instruments following the acquisition. The family includes various output voltage options and current ratings within the same functional architecture.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2599S-5.0/NOPB is the direct equivalent. LM2598S-5.0/NOPB offers similar functionality but with different electrical characteristics. LM2596S-5.0/NOPB is a related part with comparable features but may differ in specific performance metrics.