LM25018MRX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM25018MRX/NOPB is a synchronous step-down switching regulator manufactured by Texas Instruments. It operates with an input voltage range of 3V to 42V and delivers up to 1A of output current. The device integrates high-side and low-side N-channel power MOSFETs and supports adjustable switching frequencies from 100kHz to 1MHz. Key electrical parameters include a quiescent current of 1.7mA, a minimum off-time of 60ns, and an operating temperature range of -40°C to +125°C. It utilizes a fixed-frequency current-mode control architecture and is housed in an 8-pin SO-PowerPAD package.

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 suitable for various supply rails
• Features adjustable switching frequency for optimization of external component size
• Includes programmable soft-start to limit inrush current during startup

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supplies for embedded computing systems
• Battery-powered applications requiring efficient voltage conversion
• General-purpose DC-DC conversion in automotive environments

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MRX' confirms the tape-and-reel packaging format required for automated assembly processes. Confirm RoHS compliance status through the official datasheet or manufacturer documentation. Ensure the ordering part number matches the exact thermal pad configuration and pinout specifications defined in the mechanical drawings to prevent PCB layout errors.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single-output synchronous buck solution is needed with integrated power switches. It is appropriate for designs requiring input voltages up to 42V and output currents around 1A. Consider the thermal performance of the PowerPAD package and ensure adequate copper area for heat dissipation. Verify that the desired switching frequency falls within the supported range to meet efficiency and size constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2501x family of synchronous buck regulators from Texas Instruments. It shares architectural similarities with other members like the LM25019 but offers specific current and voltage ratings tailored for mid-power applications. The family is designed to simplify power supply design by integrating drivers and protection features typically found in discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the LM2501x series, such as the LM25019, if higher current capability is required. Verify that any substitute maintains the same SO-PowerPAD-8 package outline and thermal characteristics. Ensure the replacement device supports the same input voltage range and switching frequency adjustments.