LM5005MH

Voltage Regulators - DC DC Switching Regulators Overview

The LM5005MH is a high-voltage synchronous buck regulator from Texas Instruments, housed in a 20-PowerTSSOP package. It supports an input voltage range of 7V to 75V and delivers up to 2.5A output current. The adjustable output voltage spans from 1.225V to 70V. Operating frequencies are programmable between 50kHz and 500kHz via a single resistor. The device integrates a 75V N-channel MOSFET and features analog current mode control for stable operation at low duty cycles.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 75V N-channel MOSFET for compact design with minimal external components
• Utilizes proprietary analog current mode control to ensure stability at low duty cycles
• Includes a bidirectional oscillator synchronization pin for multi-chip or external clock alignment
• Provides comprehensive protection mechanisms including cycle-by-cycle current limiting and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• 48V telecommunications systems
• Automotive electronics power supplies
• Industrial power system regulation

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 designation matches the required 20-PowerTSSOP footprint. Confirm that the operating temperature range meets the -40°C to 125°C junction requirement for your specific application environment before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing systems requiring wide input voltage ranges up to 75V. It is suitable for applications needing adjustable outputs starting from 1.225V. Consider the 2.5A current limit for load requirements. The ability to synchronize switching frequency helps in managing electromagnetic interference in dense layouts compared to fixed-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5005 series of high-voltage buck regulators manufactured by Texas Instruments. It is distinct from lower-voltage counterparts like the LM25005, which typically support lower maximum input voltages such as 42V or 40V. The LM5005 is specifically engineered for higher voltage industrial and automotive applications where standard 40V controllers are insufficient.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.