LT3668HMSE#TRPBF

Overview

The LT3668HMSE#TRPBF is a power management IC featuring one synchronous buck converter and two low-dropout linear regulators. It operates from an input voltage range of 1.6V to 40V. The buck output provides 400mA, while each LDO delivers 200mA. Switching frequency is adjustable between 250kHz and 2.2MHz. The device is housed in a 16-lead MSOP package with an exposed pad and supports operation temperatures from -40°C to 150°C.

Feature Summary

• Integrates a high-efficiency synchronous step-down converter with dual low-dropout linear regulators for combined switching and LDO performance.
• Supports wide input voltage ranges suitable for single-cell lithium-ion or multi-cell battery applications.
• Features adjustable switching frequencies up to 2.2MHz to optimize external component size.

Applications

• Portable instrumentation requiring mixed regulation topologies
• Industrial control systems with varying load requirements
• Battery-powered equipment utilizing single or multiple cell sources

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm tape-and-reel packaging versus tube configuration. Ensure the part number matches the exact thermal and electrical specifications required for the target application before procurement.

Selection Notes

Select this component when a design requires both efficient switching conversion and precise linear regulation within a compact footprint. Consider the maximum current ratings of the buck and LDO outputs relative to the total system power budget.

Part Context

This part belongs to the LT3668 family of integrated power management solutions. It combines switching and linear technologies to provide versatile power distribution options for space-constrained electronic designs requiring multiple regulated rails.

Replacement Considerations

LT3668HMSE#PBF is the tube-packaged equivalent of this component. Verify that the packaging format change does not impact automated assembly processes.