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 step-down voltage regulator with a fixed 5V output and 3A maximum current capability. It operates within an input voltage range of 4.5V to 40V and supports a switching frequency of 150kHz. The device utilizes pulse-width modulation control and features a TO-263-8 (D2PAK) surface-mount package. It ensures reliable performance across a junction temperature range of -40°C to 125°C, complying with RoHS standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated SIMPLE SWITCHER technology for simplified design
• Fixed 5V output configuration for standard logic levels
• High efficiency operation at 150kHz switching frequency
• Internal thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator stages for downstream linear regulators
• Standard 5V bus distribution networks
• Battery-powered equipment requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status against the manufacturer's latest documentation. Ensure the TO-263-8 package variant matches the target PCB footprint requirements. Cross-reference the datasheet revision history to confirm any changes in electrical characteristics or recommended external component values prior to finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required with up to 3A load capacity. It is suitable for designs needing high efficiency without complex feedback network calculations. Consider the 150kHz frequency for balancing component size and noise. Verify that the input voltage remains within the 4.5V to 40V range to ensure stable regulation and prevent damage to the internal switch.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2599 series of SIMPLE SWITCHER converters, which are designed for straightforward implementation of buck topologies. The 'S' designation indicates a surface-mount package, while '5.0' specifies the fixed 5V output version. The '/NOPB' suffix denotes a non-lead-based, environmentally compliant manufacturing process consistent with modern electronic assembly standards.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2599S-5.0/NOPB serves as a direct replacement for older National Semiconductor versions of the same part number. For pin-compatible alternatives with different current ratings, consider the LM2596 series for lower current needs or the LM2679 series for higher current applications, ensuring package and thermal requirements are met.