LM3671TL-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TL-ADJ/NOPB is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It operates with an input voltage range of 2.7 V to 5.5 V and delivers up to 600 mA of output current. The device features a fixed switching frequency of 2 MHz, enabling the use of compact external components. It provides an adjustable output voltage ranging from 1.1 V to 3.3 V. The component supports both Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM) modes for optimized efficiency across load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Intelligent automatic switching between low-noise PWM mode and low-current PFM mode to optimize system performance and battery life.
• Internal synchronous rectification ensures high energy efficiency during PWM operation.
• Integrated protection mechanisms include current overload limiting and thermal shutdown capabilities.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable mobile devices
• Battery-powered systems requiring efficient power management
• Low voltage circuit powering from single cell batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TL' corresponds to the DSBGA-5 package configuration required for your design. Confirm that the 'ADJ' designation matches the need for an adjustable output voltage rather than a fixed variant. Ensure compatibility with the -40°C to +85°C operating temperature range specified for this industrial grade part.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for converting 2.7V to 5.5V inputs to lower voltages up to 600mA. The 2MHz frequency allows for smaller inductors compared to lower frequency alternatives. Choose the adjustable version if the target voltage falls outside standard fixed options or requires fine-tuning within the 1.1V to 3.3V range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 family of step-down converters designed for portable applications. It shares core architecture with other variants like the LM3671MF series but differs in packaging and specific electrical characteristics. The TL package indicates a specific surface-mount footprint distinct from the MF SOT-23-5 option.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671MF-ADJ/NOPB offers similar electrical performance in a different SOT-23-5 package. LM3671TL-3.3/NOPB serves as a substitute if a fixed 3.3V output is acceptable instead of an adjustable one.