LM5000SDX-3

Voltage Regulators - DC DC Switching Regulators Overview

The LM5000SDX-3 is a high-voltage switching regulator IC from Texas Instruments, designed for boost and flyback topologies. It operates with an input voltage range of 3.1 V to 40 V and provides an adjustable output voltage starting at 1.295 V. The device supports a switch current of 1.35 A and features a programmable switching frequency between 300 kHz and 700 kHz. It is housed in a 16-WSON package with exposed pad and functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports boost and flyback converter topologies for versatile power conversion applications.
• Features adjustable switching frequency to optimize efficiency and component size.
• Includes internal compensation and soft-start capabilities for stable operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Automotive electronics operating within wide input voltage ranges
• Point-of-load regulation in distributed power architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'SDX' indicates tape and reel packaging configuration distinct from tube variants. Confirm RoHS compliance status through official datasheets as manufacturing processes may update. Ensure ordering quantities align with standard reel sizes specified by Texas Instruments to avoid partial reel handling issues during assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring high input voltages up to 40 V with moderate output currents. The adjustable frequency allows optimization for specific inductor sizes and efficiency targets. Consider thermal performance requirements due to the WSON package limitations under high load conditions compared to larger packages.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM5000 family of high-voltage switch-mode regulators. The 'SDX' suffix denotes surface-mount WSON packaging in tape-and-reel format. This variant shares core electrical characteristics with other LM5000 pinouts but differs in physical footprint and shipping configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5000SD/NOPB: Same function in tube packaging. LM5000SD-6/NOPB: Higher switching frequency range (600 kHz–1.3 MHz). Verify pin compatibility and thermal dissipation requirements before substitution.