LTC3899EFE

DC DC Switching Controllers Overview

The LTC3899EFE is a 60V Low IQ Triple Output Buck-Boost Synchronous Controller from Analog Devices. It operates from an input voltage of 4.5 V to 60 V during start-up and maintains operation down to 2.2 V after start-up. The device integrates one boost and two buck converters capable of producing output voltages up to 60 V with high efficiencies. In applications where the input voltage exceeds the boost regulated output voltage, the controller keeps the synchronous boost MOSFET on continuously, allowing the output voltage to follow the input voltage with minimal power loss.

DC DC Switching Controllers Feature Summary

• Integrates one boost and two buck converters for triple output generation
• Maintains operation down to 2.2 V after start-up
• Optimizes efficiency by keeping synchronous boost MOSFET on when input exceeds regulated output

DC DC Switching Controllers Applications

• Systems requiring triple output power management with buck-boost topology
• Applications with wide input voltage ranges exceeding regulated outputs
• High efficiency power conversion designs

DC DC Switching Controllers Procurement Notes

Verify the specific package type and temperature grade against the official datasheet before procurement. Ensure the supplier provides genuine Analog Devices components with traceable documentation. Confirm that the part number suffix matches the required operating conditions and packaging specifications.

DC DC Switching Controllers Selection Notes

Select this controller for designs requiring three independent outputs derived from a single wide-range input source. Consider its low quiescent current characteristics for battery-operated systems. Evaluate the need for the specific buck-boost capability versus standard buck-only controllers based on input voltage variability.

DC DC Switching Controllers Part Context

The LTC3899 belongs to the Analog Devices family of synchronous switching regulators. It is designed for complex power architectures needing multiple rails from a single source. The device complements other LTC38xx series controllers offering similar voltage ratings but different channel configurations.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible alternatives within the LTC38xx series. Verify if the LTC3859 or similar triple output controllers meet the specific voltage and current requirements of the design.