LT3758MPMSE#PBF

Overview

The LT3758MPMSE#PBF is a high-performance switching voltage regulator controller from Analog Devices Inc., designed for versatile DC-DC conversion topologies including boost, flyback, SEPIC, and inverting configurations. It supports positive or negative outputs with isolation capabilities. The device operates within a supply voltage range of 5.5V to 100V and features an adjustable switching frequency from 100kHz to 1MHz. Packaged in a 10-MSOP-EP surface-mount format, it is rated for an extended junction temperature range of -55°C to 150°C, ensuring reliability in demanding industrial environments.

Feature Summary

• Supports multiple converter topologies including boost, flyback, SEPIC, and inverting configurations
• Capable of generating positive or negative isolated outputs
• Features clock synchronization for multi-phase or parallel operation
• Includes integrated control characteristics such as enable, frequency control, and soft start

Applications

• Industrial power supplies requiring wide input voltage ranges
• Battery-powered systems utilizing boost or SEPIC architectures
• Telecommunications equipment needing isolated DC-DC conversion
• Automotive electronics operating in extreme temperature conditions

Procurement Notes

Verify the specific suffix PBF indicates lead-free compliance and RoHS standards before procurement. Confirm the package type matches the 10-MSOP-EP footprint requirements for PCB layout. Ensure the supplier provides valid documentation regarding the military-grade temperature rating (-55°C to 150°C) if required for the application. Cross-reference the manufacturer part number with official distributor catalogs to avoid counterfeit components.

Selection Notes

Select this component when designing circuits that require a single controller to drive various non-isolated and isolated topologies. The wide input voltage range up to 100V makes it suitable for direct connection to higher voltage buses without pre-regulation. Consider the thermal performance of the exposed pad package for heat dissipation needs. Evaluate the need for clock synchronization if integrating into larger power systems.

Part Context

This part belongs to the LT3758 family of high-input voltage controllers. Variants such as LT3758EMSE#PBF offer commercial temperature grades, while the M prefix denotes the extended military/industrial temperature range. The #PBF suffix specifies the lead-free and RoHS-compliant packaging. Other variants may differ in tape-and-reel availability or specific electrical tolerances.

Replacement Considerations

LT3758EMSE#PBF serves as a commercial-grade alternative with a narrower temperature range. LT3758IMSE#TRPBF offers similar functionality but in tape-and-reel packaging. Verify pin compatibility and thermal requirements when substituting, as temperature ratings and packaging formats differ significantly between these variants.