LT3380HUJM#PBF

Overview

The LT3380HUJM#PBF is a specialized power management IC featuring four integrated buck switching regulators and three LDO linear regulators, controlled via an I2C interface. It operates within an input voltage range of 1.7 V to 5.5 V, supporting output voltages from 850 mV to 3.8 V. The device provides output currents of 300 mA, 1.5 A, and 2.5 A across its multiple channels. Designed for high efficiency in compact spaces, it utilizes a QFN-40 surface-mount package and functions reliably within a temperature range of -40°C to +150°C.

Feature Summary

• Integrates four buck switching converters and three LDO linear regulators into a single solution
• Features digital control and configuration capabilities through an I2C interface
• Supports wide input voltage ranges suitable for various battery and rail applications

Applications

• Multi-rail power distribution systems requiring independent regulation
• Embedded computing platforms with complex power sequencing needs
• Industrial equipment utilizing I2C-controlled power management

Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when reviewing distributor listings. Confirm that the HUJM variant meets the required thermal and electrical specifications for the target application environment. Ensure compatibility with the I2C bus speed and address configuration before integration. Cross-reference the datasheet revision to confirm pinout and functional consistency with existing designs.

Selection Notes

Select this component when a consolidated solution for multiple voltage rails is required to minimize board space. Consider the I2C control overhead if real-time analog response is critical without digital intervention. Evaluate the thermal performance of the QFN-40 package against the total power dissipation of all active channels. Verify that the input voltage range aligns with the system's primary power source stability.

Part Context

This part belongs to the LT3380 series of multi-output power management solutions from Analog Devices. It is designed to replace discrete regulator arrangements by integrating both switching and linear regulation stages. The family focuses on providing flexible power architectures for applications demanding high density and digital configurability.

Replacement Considerations

LT3380HUJM#WTRPBF