LM3671TLX-2.8/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TLX-2.8/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, belonging to the LM3671 series. It provides a regulated 2.8 V output with a maximum load current of 600 mA. The device operates from an input voltage range of 2.7 V to 5.5 V and utilizes a buck topology with an integrated synchronous rectifier. It features a typical switching frequency of 2.6 MHz, allowing for compact external component sizing. The unit is housed in a DSBGA-5 package and supports surface-mount installation. It functions within an ambient temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification to maintain high efficiency across the operating load range.
• Automatically transitions between PWM low-noise mode and PFM low-current mode to optimize performance under varying load conditions.
• Supports shutdown functionality that reduces battery current consumption to minimal levels during standby periods.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits from single-cell lithium-ion batteries
• Portable systems requiring efficient step-down conversion
• Battery-operated devices needing extended standby life

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TLX indicates tape-and-reel packaging when sourcing. Confirm the 2.8 V fixed output variant matches the design requirement. Ensure the DSBGA-5 footprint aligns with the PCB layout. Check for AEC-Q100 compliance if automotive qualification is required, as standard variants may differ from Q-rated versions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part for applications requiring a fixed 2.8 V rail from a 2.7 V to 5.5 V source. The 600 mA output capability suits moderate load demands. Consider the DSBGA-5 package size constraints against available board space. Verify thermal requirements for the intended operating environment within the specified temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This component is part of the LM3671 family of optimized step-down converters designed for portable electronics. The family offers various fixed output voltages and adjustable options. The TLX suffix denotes the reel packaging format, distinguishing it from cut-tape or tray distributions while maintaining identical electrical characteristics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671TL-2.8/NOPB serves as a direct functional substitute with identical electrical specifications. Verify package compatibility as both utilize the DSBGA-5 form factor. Cross-reference pinouts to ensure interchangeability without circuit modification.