LM5005MHX

Voltage Regulators - DC DC Switching Regulators Overview

The LM5005MHX/NOPB is a high-voltage synchronous buck switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 7 V to 75 V and delivers up to 2.5 A of output current. The device supports adjustable output voltages from 1.225 V to 75 V. It features an integrated power MOSFET and allows for external frequency synchronization or programming between 50 kHz and 500 kHz. The component is housed in a 20-pin HTSSOP package with an exposed pad and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side N-channel power MOSFET for efficient step-down conversion
• Supports wide input voltage range suitable for industrial and automotive applications
• Includes programmable soft-start and frequency synchronization capabilities
• Features comprehensive protection mechanisms including overcurrent and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• Distributed power systems
• Battery-powered equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm RoHS compliance and lead-free status. Ensure the package type matches the design requirements, as variations exist between tape-and-reel and tube packaging. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability. Check for any recent product change notices that may affect pinout or electrical characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 75 V is required. Consider the 2.5 A current capability and the need for synchronous rectification efficiency. Evaluate the operating frequency range to balance component size against transient response. Ensure the thermal performance of the HTSSOP package meets the application's heat dissipation needs without excessive heatsinking.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5005 family of high-voltage synchronous buck regulators. It is distinct from the LM25005 series, which typically supports lower maximum input voltages. The LM5005 is designed for applications requiring robust performance under high voltage stress while maintaining compact form factors through integrated power stages.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5005MH/NOPB is a non-exposed pad variant of the same functional device. Verify if the PCB footprint accommodates the exposed pad requirement of the MHX version. Other high-voltage buck regulators from different manufacturers may require significant circuit redesign due to differences in control loops and pinouts.