LM25007MMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25007MMX/NOPB is a synchronous step-down switching regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 9V to 42V and delivers a maximum output current of 500mA. The device features an adjustable output voltage starting from a minimum of 2.5V, supporting flexible system design requirements. It integrates a fixed-frequency constant on-time control architecture with a typical switching frequency of 800kHz. The component is housed in an 8-pin VSSOP package with an exposed thermal pad, ensuring reliable operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side N-channel MOSFET for efficient synchronous rectification without requiring external Schottky diodes.
• Utilizes a fixed-frequency constant on-time control architecture to maintain stable regulation under varying load conditions.
• Includes internal soft-start functionality to limit inrush current during startup sequences.
• Features comprehensive protection mechanisms including thermal shutdown and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for automotive infotainment systems
• Voltage translation in embedded computing modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against the manufacturer's latest datasheet to ensure compatibility with RoHS standards and lead-free manufacturing processes. Confirm that the 8-VSSOP package dimensions match your PCB footprint requirements. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for stepping down voltages up to 42V with moderate current demands. The integrated synchronous rectifier reduces external component count compared to non-synchronous alternatives. Ensure the application environment supports the specified operating temperature range and that adequate thermal management is provided for the exposed pad.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM25007 family of wide-input voltage buck regulators. It serves as a direct replacement for older National Semiconductor versions, such as the LM25007MMX, which are now obsolete. The NOPB suffix indicates a lead-free and RoHS-compliant variant manufactured by Texas Instruments following their acquisition of National Semiconductor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM25007MMX/NOPB is the direct active replacement for the discontinued LM25007MMX. Both parts share identical pinouts and electrical specifications, allowing for drop-in upgrades in existing designs.