LT3692AIUH#PBF

Overview

The LT3692AIUH#PBF is a monolithic dual tracking buck switching regulator from Analog Devices. It integrates two internal 3.8A switches for high-efficiency DC-to-DC conversion. The device supports an input voltage range of 6V to 36V and delivers adjustable output voltages, commonly configured for 5V, 2.5V, 1.8V, and 1.2V in multi-output applications. Operating at multiple frequencies, it utilizes current mode PWM topology. The component is housed in a QFN-32 package and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Dual independent channels with dedicated feedback, soft-start, UVLO, and comparator pins simplify complex power supply tracking and sequencing requirements.
• Current mode PWM architecture provides precise control and fast transient response for demanding load conditions.
• Integrated 3.8A switches enable compact design by eliminating external power components.

Applications

• Quad output multi-frequency synchronized two-stage converters
• Complex power supply tracking and sequencing systems
• Industrial equipment requiring isolated or tracked voltage rails

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm exact electrical characteristics and pinout compatibility. Ensure the ordering part number matches the required thermal grade and package variant. Cross-reference datasheet revisions to validate feature availability for the specific batch. Confirm RoHS compliance status through manufacturer declarations prior to integration into regulated assemblies.

Selection Notes

Select this component when designing systems requiring synchronized dual-buck regulation with independent channel control. The integrated comparators and soft-start features are critical for applications needing precise voltage ramping and fault monitoring. Evaluate thermal performance based on the QFN-32 package capabilities and expected load currents to ensure reliable operation under maximum ambient temperatures.

Part Context

This part belongs to the LT3692 family of dual synchronous step-down regulators. It shares architectural similarities with other LT369x series devices but offers specific current ratings and frequency options tailored for multi-rail power distribution networks. The AIUH variant denotes a specific industrial temperature grade and package configuration within the broader product line.

Replacement Considerations

LT3692IUH#PBF