LM2675N-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2675N-ADJ/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-efficiency power conversion. It operates with an input voltage range of 8V to 40V and delivers a maximum output current of 1A. The adjustable output voltage spans from 1.21V to 37V. Featuring a fixed switching frequency of 260kHz, the device utilizes an MDIP-8 package for through-hole mounting. It supports an operating junction temperature range from -40°C to +125°C and includes internal frequency compensation and a shutdown feature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology simplifies external component requirements
• Fixed 260kHz switching frequency enables use of small inductors and capacitors
• Internal frequency compensation eliminates phase shift complications during design
• Shutdown pin allows for system power management and standby mode control

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring efficient step-down regulation
• Post-regulation stages for bus distribution networks
• Adapters and point-of-load modules
• General-purpose DC-DC conversion in industrial equipment

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the MDIP-8 package dimensions match your PCB footprint requirements. Ensure the input voltage does not exceed the 40V absolute maximum rating. Check for updated datasheets regarding thermal performance guidelines for through-hole mounting.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a through-hole solution is preferred over surface-mount alternatives within the LM2675 family. It is suitable for applications requiring adjustable output voltages up to 37V with 1A load capacity. Consider the 260kHz frequency trade-off between component size and efficiency compared to lower-frequency regulators. Verify that the ambient temperature conditions remain within the specified -40°C to +125°C operational range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2675 series of SIMPLE SWITCHER® regulators, which are known for reducing external component count. The series includes fixed voltage options (e.g., 3.3V, 5V) and adjustable variants. The 'N' designation specifically identifies the MDIP through-hole package, distinguishing it from SOIC or WSON surface-mount versions like the LM2675M or LM2675LD.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2675M-ADJ/NOPB offers identical electrical specifications but uses an SOIC-8 surface-mount package. LM2675LD-5.0/NOPB provides a fixed 5V output in a WSON-16 package. For higher input voltage requirements, consider the LM2575HVS series. Ensure pin compatibility and thermal dissipation characteristics are evaluated when substituting package types.