LM3671TLX-1.5/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TLX-1.5/NOPB is a fixed-output synchronous buck DC-DC converter from the Texas Instruments LM3671 series, housed in a DSBGA-5 package. It provides a fixed 1.5V output with a maximum load current of 600mA. The device operates within an input voltage range of 2.7V to 5.5V and features a typical switching frequency of 2MHz. Quiescent current is specified at 16uA in PFM mode, with shutdown current at 0.01uA. Operating temperature ranges from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency across the operating load range
• Automatically transitions between PWM low-noise mode and PFM low-current mode based on load conditions
• Requires only three external surface-mount components: one inductor and two ceramic capacitors

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits from single-cell lithium-ion batteries
• Portable systems requiring compact power management solutions
• Battery-operated devices needing extended standby life

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TLX' corresponds to the DSBGA-5 package and reel packaging configuration. Confirm that the fixed 1.5V output matches the target circuit requirements. Ensure compatibility with the 2.7V to 5.5V input voltage range. Check for RoHS compliance documentation. Validate thermal performance within the -40°C to +85°C operating range.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.5V rail is required from a 2.7V to 5.5V source. The DSBGA-5 package offers a small footprint suitable for space-constrained designs. The 600mA output capability supports moderate load currents. Consider the automatic mode switching for optimizing efficiency in variable load applications.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 family of step-down DC-DC converters designed for portable electronics. The TLX variant specifically denotes the DSBGA-5 package type. The family shares common electrical characteristics including 2MHz switching frequency and integrated synchronous switches, differing primarily in output voltage options and physical packaging.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671TL-1.5/NOPB is a compatible alternative with identical electrical specifications but may differ in tape-and-reel orientation or specific manufacturing lot details.