LM2674M-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2674M-5.0 is a DC-DC switching buck converter manufactured by UMW, operating with a fixed frequency of 260 kHz PWM control. It features a wide input voltage range from 7 V to 40 V and provides a fixed output voltage of 5.0 V. The device supports a maximum output current of 500 mA with high efficiency and low ripple. It includes built-in overcurrent protection and overtemperature shutdown functions. The component utilizes an internal integrated efficient power switch and requires minimal external components for implementation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Built-in overcurrent protection and overtemperature shutdown functions
• Internal integrated efficient power switch
• ON/OFF pin with hysteresis function and TTL shutdown capability
• Wide input voltage range supporting 7 V to 40 V

Voltage Regulators - DC DC Switching Regulators Applications

• General purpose DC/DC voltage reduction and stabilization
• Battery-powered systems requiring efficient step-down conversion
• Industrial equipment power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as UMW (Guangdong Youtai Semiconductor Co., Ltd.) rather than Texas Instruments, despite the legacy naming convention. Confirm the package type is SOP-8 and the output voltage is strictly fixed at 5.0 V. Ensure the datasheet specifies the 260 kHz switching frequency and 500 mA current rating. Cross-reference the part number suffix to confirm RoHS compliance status if required for specific regulatory environments.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from an input range of 7 V to 40 V. It is suitable for applications needing up to 500 mA load current with high efficiency. Consider the SOP-8 package constraints for PCB layout. Verify that the 260 kHz switching frequency aligns with EMI requirements and inductor selection criteria for the target design.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM2674 series belongs to a family of DC-DC switching buck converters controlled by fixed-frequency PWM. This specific variant, LM2674M-5.0, offers a fixed 5.0 V output. It shares architectural similarities with other SIMPLE SWITCHER® devices but is produced by UMW. The series is characterized by simple peripheral requirements and robust protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2674N-5.0/NOPB: Texas Instruments equivalent in PDIP-8 package. LM2674M-5.0/NOPB: Texas Instruments equivalent in SOIC-8 package. Verify pin compatibility and thermal performance differences between manufacturers.