LM5008SD/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5008SD/NOPB is a high-voltage step-down switching regulator from Texas Instruments, operating within a 9.5 V to 95 V input range. It delivers up to 350 mA output current with an adjustable voltage range of 2.5 V to 75 V. The device utilizes a fixed constant on-time architecture and supports programmable switching frequencies between 50 kHz and 600 kHz. Quiescent current is specified at 485 uA. It is housed in an 8-pin WSON package and functions across an extended temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed constant on-time control architecture for simplified external component selection
• Wide input voltage capability supporting high-side N-channel or P-channel MOSFETs
• Integrated bootstrap diode eliminates the need for external Schottky components
• Programmable switching frequency allows optimization for efficiency and transient response

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply systems requiring wide input ranges
• Automotive electronics compatible with 12V, 24V, and 48V architectures
• Point-of-load regulation in distributed power distribution networks
• Battery-powered equipment utilizing high-voltage cell configurations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and thermal pad configuration. Confirm RoHS compliance status through manufacturer datasheets. Check for lifecycle notifications such as NRND or obsolescence before finalizing procurement plans. Ensure compatibility with required operating temperatures and packaging formats.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Evaluate the maximum input voltage against system transients to ensure headroom. Select the switching frequency based on the trade-off between passive component size and conversion efficiency. Verify that the required output current does not exceed the 350 mA limit under worst-case thermal conditions. Consider the availability of evaluation boards for initial circuit validation.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM5008 family of high-voltage buck regulators designed for robust performance in demanding environments. The series emphasizes ease of design implementation through constant on-time control. It serves as a solution for applications needing efficient voltage translation from high-voltage sources to lower logic or load voltages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5008SDC/NOPB: Verified alternative offering identical electrical specifications and functionality in a standard SOIC-8 package.