LM3677LE-1.8/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3677LE-1.8/NOPB is a switching voltage regulator manufactured by Texas Instruments, designed as a miniature step-down DC-DC converter for ultra-low voltage circuits. It operates with an input voltage range from 2.7 V to 5 V and provides a fixed output of 1.8 V at up to 600 mA. The device utilizes a 6-USON package and supports a switching frequency of 3 MHz. It 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

• Miniature step-down DC-DC converter architecture optimized for space-constrained designs
• Supports ultra-low voltage circuit applications with wide input voltage tolerance
• Integrates pulse width modulation control for efficient power conversion

Voltage Regulators - DC DC Switching Regulators Applications

• Ultra-low voltage portable electronic devices
• Battery-powered consumer electronics requiring compact power solutions
• Space-constrained embedded systems needing efficient step-down regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix LE against official Texas Instruments documentation to confirm package type and electrical characteristics. Ensure compatibility with required input voltage ranges and thermal management needs. Cross-reference the NOPB designation for lead-free compliance status. Confirm availability through authorized distributors only to prevent counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a fixed 1.8 V output from a single-cell lithium-ion or similar battery source. Consider the 3 MHz switching frequency for minimizing external passive component size. Evaluate the 6-USON package constraints for PCB layout efficiency. Compare against other LM367x family members if variable output voltages or higher current capabilities are needed.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM367x series of switching regulators from Texas Instruments, which focuses on high-efficiency, low-noise power management solutions. The series includes various fixed and adjustable output variants tailored for mobile and handheld applications. The LM3677 specifically targets ultra-low voltage requirements, distinguishing itself within the broader PMIC portfolio through its specialized input range and compact form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official substitution guides for direct pin-compatible alternatives within the LM367x family. Verify that any replacement maintains the 1.8 V fixed output and 600 mA current capability. Ensure the alternative supports the same 6-USON package and operating temperature range.