LM25019MRX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25019MRX/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments. It integrates high-side and low-side N-channel power MOSFETs into an SO-PowerPAD-8 package. The device operates with an input voltage range of 9 V to 48 V and provides a maximum output current of 100 mA. It features a fixed switching frequency of 400 kHz and supports adjustable output voltages up to 10 V. The component functions within a temperature range of -40°C to +125°C, drawing a typical quiescent current of 1.75 mA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for compact design
• Supports wide input voltage range from 9 V to 48 V
• Includes internal soft-start circuitry to limit inrush current
• Features cycle-by-cycle current limiting and thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for automotive electronics
• Distributed power architectures in telecom infrastructure
• Battery-powered systems requiring efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix /NOPB to ensure lead-free compliance and RoHS adherence. Confirm the specific package variant (SO-PowerPAD-8) matches your PCB footprint requirements. Check the latest datasheet for any updates regarding operating conditions or recommended external component values. Ensure thermal management solutions are adequate for the intended load and ambient temperature conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact synchronous buck solution is required for inputs up to 48 V. It is suitable for applications needing moderate output currents around 100 mA with high efficiency. Consider the integrated MOSFETs to reduce external component count compared to non-integrated controllers. Evaluate the 400 kHz switching frequency against EMI constraints and inductor size requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM25019 family of wide input voltage synchronous buck regulators. It is designed to simplify power supply design by integrating power switches, eliminating the need for external gate drivers. The family targets applications requiring robust performance in harsh environments, such as automotive and industrial sectors, offering reliable operation across extended temperature ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for compatible alternatives within the Texas Instruments portfolio. Verify pinout compatibility and electrical parameter alignment before replacing the component.