LM3671TL-2.8/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TL-2.8/NOPB is a step-down DC-DC converter manufactured by Texas Instruments, belonging to the LM3671 series. It features a fixed 2.8 V output voltage and supports up to 600 mA of load current. The device operates with an input voltage range from 2.7 V to 5.5 V and utilizes a buck topology. It incorporates a typical switching frequency of 2.6 MHz and functions within a temperature range of -40°C to +85°C. The component is housed in a DSBGA-5 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Intelligent automatic switching between PWM low-noise mode and PFM low-current mode to optimize efficiency across varying load conditions.
• Internal synchronous rectification ensures high energy conversion efficiency during PWM operation.
• High switching frequency allows for the use of compact surface-mount components, requiring only three external elements.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits in portable mobile devices
• Systems utilizing single lithium-ion battery inputs
• Portable consumer electronics requiring efficient power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix TL indicates the DSBGA-5 package configuration rather than other variants like MFX (SOT-23-5). Confirm the 2.8 designation matches the required fixed output voltage. Ensure the NOPB suffix confirms lead-free compliance and RoHS standards as specified in the official datasheet documentation.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when a fixed 2.8 V output is required without external resistor programming. Choose the TL package variant if board space constraints favor the DSBGA-5 footprint over the SOT-23-5 option. Consider the 2.6 MHz frequency for minimizing passive component size while maintaining stability within the 2.7 V to 5.5 V input range.

Voltage Regulators - DC DC Switching Regulators Part Context

This component is part of the LM3671 family of step-down converters designed for portable applications. It provides regulated power from single-cell lithium batteries or 5 V rails. The family includes adjustable versions and various package options to suit different design requirements for mobile phones and similar systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671MFX-2.8/NOPB offers identical electrical performance but utilizes an SOT-23-5 package instead of DSBGA-5. LM3671TLX-2.8/NOPB shares the same DSBGA-5 form factor and specifications. Verify pinout compatibility before substitution.