LM5008SDCX

Voltage Regulators - DC DC Switching Regulators Overview

The LM5008SDCX/NOPB is a high-voltage buck switching regulator from Texas Instruments, designed for wide input voltage applications. It operates with an input range of 9.5 V to 95 V and delivers up to 350 mA of output current. The device features a fixed constant on-time architecture with an adjustable switching frequency between 50 kHz and 600 kHz. It supports output voltages from 2.5 V to 75 V and includes integrated shutdown functionality. Packaged in an 8-pin WSON, it functions within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for simplified external component selection
• Wide input voltage capability supporting high-side or low-side N-channel MOSFETs
• Integrated power switch with overcurrent protection and thermal shutdown
• Adjustable switching frequency allows optimization for size and efficiency

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics systems
• High-voltage battery-powered equipment
• Distributed power architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB when ordering to ensure compliance with RoHS standards and lead-free manufacturing processes. Confirm the specific package variant (SDC vs SDCX) matches your PCB footprint requirements. Cross-reference the manufacturer datasheet for accurate pinout and electrical characteristics before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring high input voltage tolerance without external bootstrap circuits. The constant on-time topology simplifies compensation compared to fixed-frequency PWM controllers. Ensure the chosen switching frequency aligns with inductor saturation currents and desired ripple levels. Evaluate thermal performance based on the WSON package's thermal resistance capabilities under expected load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM5008 family of high-voltage buck regulators. It shares core architectural features with variants like the LM5008SDC/NOPB but may differ in reel packaging quantities or specific tape-and-reel configurations. The family is characterized by its ability to drive external N-channel MOSFETs directly from high-voltage inputs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative high-voltage buck regulators from other manufacturers.