LM3671LC-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671LC-1.2/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, featuring a 1.2V output and 600mA maximum load current capability. It operates within an input voltage range of 2.7V to 5.5V with a typical switching frequency of 2MHz. The device utilizes a DSBGA-5 package and supports an operating temperature range from -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 to optimize system efficiency across varying load conditions.
• Internal synchronous rectification provides high energy conversion efficiency during PWM operation.
• Integrated protection mechanisms including internal soft-start, current overload protection, and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low-voltage circuits in mobile phones
• Portable hard disk drives
• Personal digital assistants (PDAs)
• MP3 players and portable media devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'LC' against official Texas Instruments documentation to confirm package type and availability, as standard listings often reference MF or TL variants. Ensure compatibility with required PCB footprint dimensions for the identified package style before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing compact portable systems requiring efficient power management from single-cell lithium-ion batteries. The fixed 1.2V output simplifies design compared to adjustable versions, while the small form factor minimizes board space requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3671 family of ultra-small step-down converters designed for battery-powered applications. The series offers various fixed voltage options and adjustable versions, all sharing common features like high switching frequency and low quiescent current for extended battery life.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3671MF-1.2/NOPB: Different SOT-23-5 package; verify pinout and thermal performance. LM3671TL-1.2/NOPB: Different DSBGA-5 package; check footprint compatibility. LM3671QMF-1.2/NOPB: Automotive grade variant; ensure qualification requirements match.