LM3671TLX-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671TLX-1.2/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, featuring a 1.2 V output and 600 mA load current capability. It operates within an input voltage range of 2.7 V to 5.5 V with a typical switching frequency of 2 MHz. The device utilizes a DSBGA-5 package and supports surface-mount installation. Electrical specifications include a typical static current of 16 µA in PFM mode and a shutdown current of 0.01 µA. The operational temperature range spans from -40 °C to +85 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automatically switches between PWM low-noise mode and PFM low-current mode to optimize efficiency across varying load conditions.
• Integrates internal synchronous rectification to maintain high energy conversion efficiency during PWM operation.
• Requires only three external surface-mount components, consisting of one inductor and two ceramic capacitors.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits from single-cell lithium-ion batteries
• Portable electronic systems such as mobile phones
• Battery-operated devices requiring extended standby life

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TLX' indicates the tape-and-reel packaging format for the DSBGA-5 variant. Confirm that the 'NOPB' designation ensures compliance with RoHS standards and absence of lead-based materials. Cross-reference the manufacturer datasheet to ensure the fixed 1.2 V output aligns with circuit requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact buck converter is needed for portable applications powered by a single lithium-ion cell. The 2 MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the design accommodates the DSBGA-5 footprint and thermal dissipation characteristics inherent to this small-outline package type.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 family of step-down DC-DC converters designed for battery-powered systems. Unlike automotive-grade variants such as the LM3671-Q1 series, this standard industrial version is optimized for general portable electronics. It shares core topology features with other fixed-output versions like the LM3671TL-3.3/NOPB but differs in its specific regulated output voltage setting.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671TL-1.2/NOPB