LT3383HUJM#PBF

Overview

The LT3383HUJM#PBF is a multi-output power management integrated circuit from Analog Devices, designed to consolidate multiple voltage rails into a single component. It integrates four buck switching regulators and three low-dropout (LDO) linear regulators within a compact QFN-40 package. The device supports an input voltage range of 1.7 V to 5.5 V, accommodating various system power sources. Output currents are specified at 300 mA, 1.5 A, and 2.5 A depending on the specific regulator channel. The unit operates reliably across an extended temperature range from -40°C to +150°C, ensuring stability in demanding environments.

Feature Summary

• Integrates four independent buck switching converters for efficient step-down regulation
• Includes three LDO linear regulators for low-noise power delivery
• Supports I2C interface for digital control and monitoring capabilities
• Provides a comprehensive multi-rail power solution in a single compact package

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Industrial equipment with diverse power consumption profiles
• Communication systems needing efficient power distribution
• Embedded systems utilizing digital control interfaces for power management

Procurement Notes

Verify the exact part number suffix and manufacturer specifications against official Analog Devices documentation before procurement. Ensure compatibility with your system's input voltage range and thermal requirements. Confirm that the QFN-40 package footprint matches your PCB design constraints. Check for any recent product change notifications or availability updates directly from the manufacturer or authorized distributors to avoid sourcing issues.

Selection Notes

Select this component when a high degree of integration is required to reduce board space and component count. It is suitable for applications where both switching efficiency and LDO precision are necessary. Consider the total output current capabilities and the specific voltage requirements of each rail. Evaluate the thermal performance within the operating temperature range to ensure reliable operation under load conditions.

Part Context

This part belongs to the LT3380 series of professional power management ICs from Analog Devices. These components are engineered to provide complete power solutions for complex systems. The series focuses on integrating multiple regulator types to simplify design and improve reliability. The LT3383 variant specifically offers a combination of buck and LDO outputs for versatile power distribution needs.

Replacement Considerations

Consult official Analog Devices substitution guides for verified compatible parts. Cross-reference pinouts, electrical parameters, and package dimensions to ensure mechanical and functional compatibility. Verify that any alternative component meets the same thermal and regulatory standards.