LM3671TLX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TLX-3.3/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, belonging to the LM3671 series. It provides a regulated 3.3V output with a maximum load current of 600mA. The device operates from an input voltage range of 2.7V to 5.5V and utilizes a 2MHz switching frequency. It is housed in a 5-pin DSBGA package and supports an operating temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Intelligent automatic switching between PWM low-noise mode and PFM low-current mode for optimized efficiency across varying loads.
• Internal synchronous rectification ensures high energy conversion efficiency during PWM operation.
• High switching frequency enables the use of compact surface-mount passive components.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits from single-cell lithium-ion batteries
• Portable electronic devices requiring efficient power management
• Systems needing stable 3.3V rails with minimal external component count

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TLX' against official datasheets to confirm it denotes the tape-and-reel packaging variant of the standard TL package. Ensure compatibility with existing PCB footprints designed for the DSBGA-5 form factor. Confirm RoHS compliance status matches project requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 3.3V output is required within the 2.7V to 5.5V input range. It is suitable for applications prioritizing small board space due to the high-frequency operation and minimal external component requirement. Consider thermal performance if operating near maximum load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

This component is part of the LM3671 family of buck converters designed for portable systems. It shares core architecture with other variants like LM3671MF and LM3671TL, differing primarily in package type and output voltage configuration. The family is characterized by low static current and integrated protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671TL-3.3/NOPB is a direct equivalent with identical electrical specifications and pinout. Verify that any alternative parts maintain the same DSBGA-5 footprint and 3.3V fixed output capability.