LM3671LCX-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671LCX-1.2/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, belonging to the LM3671 series. It provides a fixed output voltage of 1.2 V with a maximum output current capability of 600 mA. The device operates with an input voltage range from 2.7 V to 5.5 V and features a switching frequency of 2.6 MHz. It utilizes a synchronous buck topology for efficient power conversion. The component is housed in a compact 6-USON package and is rated for an operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology ensures high efficiency across load conditions
• Integrated power switch supports up to 600 mA continuous output current
• Fixed 1.2 V output eliminates external feedback resistor requirements
• Compact 6-USON package design minimizes printed circuit board area

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered consumer electronics
• Embedded systems requiring stable low-voltage rails
• Mobile communication devices
• Industrial control modules with limited space constraints

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LCX' corresponds to the 6-USON package variant when sourcing. Confirm that the 'NOPB' designation indicates lead-free and RoHS compliance status as per manufacturer specifications. Ensure the fixed 1.2 V output aligns with target system requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2 V rail is required without external programming resistors. The 600 mA current limit suits moderate load applications. Consider the 2.6 MHz switching frequency for balancing component size and electromagnetic interference. Verify input voltage stability within the 2.7 V to 5.5 V operational window.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 family of step-down converters. Variants such as LM3671MF and LM3671TL offer similar electrical performance but differ in packaging, utilizing SOT-23-5 or DSBGA-5 formats respectively. The LCX suffix specifically identifies the USON footprint configuration within the product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671LCX-1.8/NOPB offers identical packaging and electrical characteristics with a fixed 1.8 V output. LM3671QMF-1.2/NOPB provides automotive-grade qualification in a SOT-23-5 package. Cross-reference pinouts and thermal dissipation requirements when substituting.