LM3674MFX-1.5

Voltage Regulators - DC DC Switching Regulators Overview

The LM3674MFX-1.5 is a fixed-output synchronous buck DC-DC converter manufactured by Texas Instruments. It provides a regulated 1.5V output with a maximum current capacity of 600mA. The device operates from an input voltage range of 2.7V to 5.5V and utilizes a fixed switching frequency of 2MHz. Designed for surface-mount applications, it is housed in a compact SOT-23-5 package. The component supports an operating temperature range from -30°C to +85°C and features a single non-isolated output configuration.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-down topology for high efficiency
• Fixed 2MHz switching frequency enables compact passive design
• Integrated shutdown control for power management

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Embedded systems requiring stable low-voltage rails
• General-purpose DC-DC conversion in consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MFX' confirms the reel packaging format and tape-and-reel quantity. Confirm the '-1.5' designation matches the required 1.5V fixed output voltage. Ensure the manufacturer is Texas Instruments to guarantee original component authenticity and datasheet compliance.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required within a 2.7V to 5.5V input window. The 600mA output capability suits moderate load applications. The SOT-23-5 package is appropriate for space-constrained PCB layouts. Verify thermal requirements against the specified -30°C to +85°C operational range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3674 family of synchronous buck converters. It shares core specifications with variants like the LM3674MFX-1.2/NOPB and LM3674MFX-1.8/NOPB, differing primarily in the fixed output voltage setting. The family is characterized by its small footprint and integration suitable for portable applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3674MFX-1.2/NOPB and LM3674MFX-1.8/NOPB are functionally similar but provide different fixed output voltages (1.2V and 1.8V respectively). Direct substitution requires verifying that the system load can tolerate the alternative voltage levels.