LM2674M-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2674M-5.0/NOPB is a Texas Instruments fixed-output step-down switching regulator operating at a 52 kHz frequency. It delivers a nominal 5.0 V output with a maximum load current of 500 mA. The device accepts an input voltage range from 4 V to 40 V. It utilizes a SOIC-14 surface-mount package and supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient voltage reduction
• Fixed 5.0 V output configuration eliminating external feedback resistor networks
• Internal power switch rated for 500 mA continuous load current
• Operates at a fixed 52 kHz switching frequency for standard passive component selection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial control systems
• Power supply stages for embedded microcontroller units
• Battery-powered equipment requiring stable 5 V rails
• General-purpose DC-DC conversion in automotive electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free status and RoHS compliance as per manufacturer specifications. Confirm the 'M' designator indicates the SOIC-14 package variant rather than the PDIP or TO-220 versions. Ensure the datasheet revision matches the required thermal and electrical characteristics for the target application environment.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required within a 4 V to 40 V input window. The 52 kHz frequency allows for smaller inductors compared to lower-frequency regulators. Consider the SOIC-14 package for surface-mount assembly constraints. Evaluate thermal dissipation requirements given the 500 mA current limit and potential voltage drops across the internal switch.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2574 family of simple-switcher regulators, designed for straightforward buck conversion applications. It serves as a direct replacement for older discrete solutions or linear regulators where efficiency is critical. The family is characterized by integrated power switches and minimal external component counts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2674N-5.0/NOPB (PDIP-8 package), LM2574MX-5.0/NOPB (older SOIC-8 variant). Verify pinout compatibility and thermal performance differences between package types before substitution.