LT3383IUJM#TRPBF

Overview

The LT3383IUJM#TRPBF is a multi-output power management solution designed for advanced portable application processor-based systems. It integrates four synchronous step-down (buck) switching regulators and three low-dropout (LDO) linear regulators within a single package. The device operates with an input voltage range of 2.7V to 5.5V and features a fixed switching frequency of 2.25MHz. It is housed in a 40-lead QFN EP package measuring 6mm by 6mm, suitable for applications requiring -40°C to +125°C operating temperatures.

Feature Summary

• Integrates four synchronous buck converters and three LDO linear regulators for comprehensive power management
• Designed specifically for complex portable application processor-based systems
• Utilizes a compact 40-lead QFN EP package to minimize board space

Applications

• Portable application processor-based systems
• Advanced mobile computing devices
• Complex embedded power architectures

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the I-grade temperature rating (-40°C to +125°C) matches your environmental requirements. Ensure the 40-lead QFN EP footprint aligns with your PCB design guidelines. Cross-reference the manufacturer part number with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when a high-density power solution is required for processor-centric designs. The integration of multiple buck and LDO outputs reduces component count compared to discrete solutions. Consider the 2.25MHz switching frequency for balancing efficiency and EMI performance. Evaluate the thermal capabilities of the QFN EP package against your system's heat dissipation constraints.

Part Context

The LT3383 belongs to Analog Devices' portfolio of integrated power management ICs. It serves as a complete power supply engine for sophisticated portable electronics. The device consolidates multiple power stages into one unit, simplifying the design process for engineers developing advanced handheld or wearable technology platforms.

Replacement Considerations

LT3383HUJM#TRPBF: Higher industrial grade variant with extended temperature range.