LM3677LEE-1.82/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3677LEE-1.82/NOPB is a synchronous step-down DC-DC converter from Texas Instruments, designed for ultra-low voltage circuits. It features a fixed output voltage of 1.82V and delivers an output current of 600mA. The device operates with an input voltage range of 2.7V to 5.5V and utilizes a switching frequency of 3MHz. Packaged in a compact 6-pin USON (UFDFN) format, it supports surface-mount installation. The component functions within a temperature range of -40°C to +85°C and employs pulse width modulation control techniques.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-down topology for high efficiency in low voltage applications
• Miniature 6-pin USON package suitable for space-constrained designs
• Fixed 1.82V output voltage optimized for ultra-low voltage circuits

Voltage Regulators - DC DC Switching Regulators Applications

• Ultra-low voltage circuit power management
• Portable electronic devices requiring compact power solutions
• Battery-powered systems needing efficient step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LEE' indicates the 6-pin USON package configuration when sourcing. Confirm the '-1.82' designation matches the required fixed output voltage of 1.82V for your design. Ensure the 'NOPB' suffix confirms lead-free and RoHS compliance status as per manufacturer specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.82V output is required from an input range of 2.7V to 5.5V. The 600mA current capability suits moderate load applications. The 3MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. The USON package is ideal where board real estate is limited.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3677 family of miniature step-down converters. It shares functional similarities with other members like the LM3674 but differs in switching frequency and package type. The LM3677 series is specifically engineered for ultra-low voltage applications, distinguishing it from general-purpose regulators in the broader Texas Instruments portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinouts, electrical parameters, and thermal characteristics against alternative synchronous buck converters from Texas Instruments or other manufacturers.