LM34923MMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM34923MMX/NOPB is an 80V, 600mA constant on-time buck switching regulator from Texas Instruments. It integrates an 80V N-channel power switch and requires minimal external components for implementation. The device operates with a fixed frequency of 1MHz and supports adjustable output voltages. It functions within a temperature range of -40°C to +125°C and utilizes a 10-VSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates an 80V N-channel buck switch for efficient step-down conversion
• Utilizes constant on-time control architecture for stable operation
• Designed as a low-cost solution requiring minimal external component count

Voltage Regulators - DC DC Switching Regulators Applications

• Secondary side bias regulation in isolated power supplies
• Efficient buck converter implementations for industrial systems
• Power management circuits requiring high voltage input tolerance

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix MMX indicates tape and reel packaging versus tube variants. Confirm the NOPB designation ensures RoHS compliance and lead-free construction. Cross-reference the manufacturer part number with official datasheets to ensure compatibility with design requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an 80V input rating and 600mA output current are required. The constant on-time topology suits applications needing simple feedback loops. Ensure the thermal performance of the VSSOP package meets the system's heat dissipation needs under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the LM3492x family of integrated buck converters. It shares architectural similarities with the LM34925 and LM34926 but offers distinct current handling capabilities. The series targets cost-sensitive designs where integration reduces board space and component count.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other members of the LM3492x family such as the LM34925 or LM34926, provided current ratings align with application needs. Verify pinout compatibility and thermal characteristics when transitioning between different current-rated variants in the same series.