LM3670MF-1.2

Voltage Regulators - DC DC Switching Regulators Overview

The LM3670MF-1.2 is a fixed-output step-down DC-DC converter manufactured by Texas Instruments, designed for space-constrained applications. It operates with an input voltage range of 2.5 V to 5.5 V and provides a fixed output of 1.2 V at up to 350 mA. The device integrates a 1 MHz switching frequency and utilizes a compact SOT-23-5 package. It supports automatic transition between Pulse Frequency Modulation (PFM) and Pulse Width Modulation (PWM) modes to optimize efficiency across varying load conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates automatic PFM/PWM mode switching for optimized efficiency under light and heavy loads
• Utilizes a compact SOT-23-5 surface-mount package for minimal board space consumption
• Features voltage-mode control architecture for stable regulation

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Embedded systems requiring efficient step-down conversion from single-cell lithium sources
• Space-limited consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distribution channels due to the availability of counterfeit parts in the market. Confirm that the specific suffix matches the required electrical specifications, as variations may exist within the family. Ensure compliance with relevant environmental standards if applicable to the final assembly requirements.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.2 V output is required from a 2.5 V to 5.5 V input source in a small footprint. It is suitable for applications prioritizing low component count and moderate current demands up to 350 mA. Consider alternative models if higher output currents or adjustable voltage outputs are necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3670 series of mini SD DC-DC converters. It shares architectural similarities with other members like the LM3674, though it differs in maximum output current and switching frequency characteristics. The series is categorized under PMIC - Power Management ICs within Texas Instruments' portfolio.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers for this specific discontinued variant are not available in the provided documentation.