LM3677TLX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3677TLX-ADJ/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It integrates a high-side and low-side N-channel MOSFETs to deliver up to 600 mA of output current. The device operates with an adjustable output voltage ranging from 1.2 V to 3.3 V. It features a fixed switching frequency of 3 MHz, enabling the use of small external inductors and capacitors. The component supports input voltages from 2.7 V to 5.5 V and functions within an ambient temperature range of -30°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for improved efficiency in compact designs
• Utilizes a fixed 3 MHz switching frequency to minimize passive component size
• Supports adjustable output voltage configuration via external resistors
• Includes internal soft-start circuitry to limit inrush current during startup

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics
• Ultra-low voltage digital circuits requiring stable power rails
• Mobile communication devices and smartphones
• Embedded systems with space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix 'NOPB' to ensure lead-free compliance and RoHS adherence. Confirm the package type is DSBGA-5 as specified. Cross-reference the manufacturer datasheet for specific handling and storage conditions related to moisture sensitivity levels before assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for converting 3.3 V or 5 V inputs to lower adjustable voltages. It is suitable for applications demanding moderate output currents up to 600 mA with high efficiency. Consider the thermal performance of the DSBGA-5 package relative to the expected load and ambient temperature conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM367x family of miniaturized step-down converters designed for portable applications. It shares architectural similarities with the LM3671 but offers a higher switching frequency of 3 MHz compared to the 2 MHz variants. The family focuses on reducing board space through integrated power switches and high-frequency operation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3671TLX-ADJ/NOPB is a related variant within the same product family. Note that the LM3671 operates at a 2 MHz switching frequency, which may require slightly larger external components compared to the 3 MHz LM3677. Verify pin compatibility and thermal characteristics before substitution.