LT3758AHMSE#PBF

Overview

The LT3758AHMSE#PBF is a high input voltage DC/DC controller manufactured by Analog Devices Inc., designed for versatile power conversion topologies including boost, flyback, SEPIC, and inverting configurations. It operates within an input voltage range of 5.5 V to 100 V and supports switching frequencies from 100 kHz to 1 MHz. The device features a single output capable of delivering up to 10 mA with a maximum output voltage of 7.2 V. Quiescent current is specified at 100 nA, while operating supply current reaches 1.6 mA. Encased in a 10-MSOP package with exposed pad, it functions reliably across a temperature range of -40°C to +150°C.

Feature Summary

• Supports multiple converter topologies including boost, flyback, SEPIC, and inverting configurations via a single feedback pin.
• Enables generation of either positive or negative output voltages through flexible programming capabilities.
• Integrates current mode control architecture for stable regulation under varying load conditions.

Applications

• Industrial power supplies requiring wide input voltage ranges
• Battery-powered systems utilizing boost or SEPIC architectures
• Negative voltage generation circuits for analog signal processing

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status and check for specific manufacturing lot codes if required for traceability. Ensure the supplier provides valid documentation matching the LT3758AHMSE#PBF part number. Validate that the package type matches the 10-MSOP specification. Request material declarations to ensure adherence to environmental standards before finalizing procurement orders.

Selection Notes

Select this controller when applications demand a wide input voltage range up to 100 V combined with flexible topology options. Consider the low quiescent current for efficiency-critical designs. Ensure the thermal performance of the MSOP package suits the expected junction temperatures. Verify that the external components can handle the maximum switching frequency and current requirements. Evaluate the need for clock synchronization if operating in multi-phase systems.

Part Context

This component belongs to the LT3758 series of high-performance DC/DC controllers from Analog Devices. The series is engineered for applications requiring robust power management in challenging electrical environments. The AH suffix typically denotes an extended temperature grade compared to standard variants. The HMSE package indicates a specific surface-mount footprint optimized for automated assembly processes.

Replacement Considerations

LT3758AIMSE#PBF: Similar specifications but with a restricted operating temperature range of -40°C to +125°C instead of -40°C to +150°C. LT3758HMSE#PBF: Standard commercial grade variant with different thermal characteristics. LT3758AMPMSE#PBF: Extended temperature variant with a minimum operating temperature of -55°C. Verify thermal requirements and temperature ratings when substituting these parts.