LM3671MF-1.2/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3671MF-1.2/NOPB is a high-efficiency step-up DC/DC converter designed for portable applications. It operates from a single lithium-ion or lithium-polymer battery source, providing a regulated output voltage of 1.2V. The device integrates a low RDS(ON) switch and supports input voltages ranging from 2.7V to 5.5V. It features a fixed switching frequency of 1.2MHz, enabling the use of small external components. The converter delivers up to 800mA of output current with high efficiency across various load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch for compact design
• Fixed 1.2MHz switching frequency reduces component size
• High efficiency operation over wide load range
• Shutdown mode minimizes quiescent current

Voltage Regulators - DC DC Switching Regulators Applications

• Portable media players
• Mobile phones
• Personal digital assistants (PDAs)
• GPS navigation devices

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free packaging compliant with RoHS standards. Confirm the MF package type matches your PCB footprint requirements. Ensure the -1.2 designation corresponds to the specific 1.2V output version required for your circuit design. Cross-reference the manufacturer's latest datasheet for any updates on recommended operating conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a stable 1.2V output is needed from a single-cell Li-ion battery. Consider its 1.2MHz frequency for minimizing inductor size compared to lower-frequency alternatives. Evaluate the 800mA current limit against peak system demands. Verify thermal performance under maximum load conditions within the specified ambient temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to Texas Instruments' LM367x family of boost converters. It shares architectural similarities with other members but differs in output voltage configuration and specific pinout details. The family targets ultra-low power consumption in space-constrained mobile electronics, offering integrated solutions to reduce bill-of-materials complexity.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM3671MF-ADJ/NOPB for adjustable output variants. Check LM3671MF-3.3/NOPB if a different fixed voltage is acceptable. Verify compatibility with existing control logic and inductor specifications before substitution.