LT3759HMSE#PBF

Overview

The LT3759HMSE#PBF is a DC-DC switching controller IC from Analog Devices Inc., designed for wide input voltage range applications. It supports Boost, Flyback, and SEPIC topologies with positive or negative output configurations capable of isolation. The device operates within a supply voltage range of 1.6V to 42V and features a switch frequency adjustable between 100kHz and 1MHz. Packaged in a 12-MSOP-EP (12-TSSOP Exposed Pad) housing, it includes control features such as enable, frequency control, power good indication, and soft start.

Feature Summary

• Supports multiple converter topologies including Boost, Flyback, and SEPIC for versatile power design
• Enables positive or negative output configurations with isolation capability
• Integrates clock synchronization for noise reduction and multi-controller phase alignment
• Provides comprehensive protection and control via enable pin, frequency control, power good signal, and soft start functionality

Applications

• Industrial power supplies requiring wide input voltage ranges
• Battery-powered systems utilizing boost or buck-boost architectures
• Isolated power conversion stages in communication equipment
• Automotive electronics demanding robust DC-DC regulation

Procurement Notes

Verify the specific suffix '#PBF' indicates lead-free tin plating and RoHS compliance when sourcing. Confirm the 'MSE' package designation corresponds to the 12-MSOP-EP form factor required by your PCB footprint. Ensure the operating temperature grade matches your environmental specifications, as industrial variants typically support extended junction temperatures. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when designing circuits that require flexible topology options beyond standard buck or boost converters. The wide input voltage range accommodates varying source conditions without additional pre-regulation. Consider the exposed pad thermal performance for high-power dissipation scenarios. Evaluate the need for clock synchronization if operating in noisy environments or alongside other switching regulators to minimize electromagnetic interference.

Part Context

This part belongs to the LT3759 family of wide input voltage DC-DC controllers manufactured by Analog Devices Inc. It is distinct from LED driver variants like the LT3756 or LT3755, focusing instead on general-purpose voltage regulation. The HMSE variant specifies the commercial temperature grade and MSOP package type, differentiating it from military or higher-temperature grades.

Replacement Considerations

LT3759IMSE#TRPBF