LM3677LE-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3677LE-1.5/NOPB is a miniature step-down DC-DC converter manufactured by Texas Instruments, designed for ultra-low voltage circuits. It operates with an input voltage range of 2.7 V to 5 V and provides a fixed output voltage of 1.5 V at a maximum current of 600 mA. The device utilizes a 3 MHz switching frequency and employs pulse width modulation control techniques. It is housed in a compact 6-USON package and supports operation within a temperature range up to 85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Miniature step-down DC-DC converter topology optimized for space-constrained designs
• Fixed 1.5 V output capability supporting up to 600 mA load current
• High-frequency 3 MHz switching operation enabling reduced passive component size

Voltage Regulators - DC DC Switching Regulators Applications

• Ultra-low voltage circuit power management
• Portable electronic devices requiring compact power solutions
• Battery-powered systems utilizing buck conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LE' corresponds to the 6-USON package variant when sourcing. Confirm the '-1.5' designation matches the required 1.5 V fixed output voltage for your design. Ensure compatibility with the specified 2.7 V to 5 V input range. Check for RoHS compliance status indicated by the '/NOPB' suffix during procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5 V output is required from a 2.7 V to 5 V source. The 600 mA current limit suits moderate load applications. The 3 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 6-USON package constraints for PCB layout if board space is limited.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3677 family of switching voltage regulators from Texas Instruments. The family includes variants with different output voltages and packages, such as the LM3677TL series in DSBGA packages. The LE suffix specifically denotes the USON package configuration within this product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other LM3677LE variants with different fixed output voltages, such as LM3677LE-1.8/NOPB, provided the voltage requirement changes. Cross-package replacements like LM3677TL-1.5/NOPB offer similar electrical performance but require footprint adaptation.