LT8364IDE#PBF

Overview

The LT8364IDE#PBF is a current mode DC/DC converter featuring an integrated 60V, 4A power switch. It operates from an input voltage range of 2.8V to 60V and supports boost, SEPIC, or inverting topologies via a unique single feedback pin architecture. The device utilizes Burst Mode operation to achieve a quiescent current of 9µA, maintaining high efficiency at low output currents while keeping typical output ripple below 15mV. Switching frequencies are programmable between 300kHz and 2MHz, with external compensation for loop optimization. It is housed in a 12-lead, 4mm x 3mm DFN package.

Feature Summary

• Single feedback pin architecture enables flexible positive or negative output voltage programming across multiple converter topologies.
• Burst Mode operation ensures ultra-low static current consumption and minimal output ripple during light load conditions.
• External compensation pin allows precise optimization of loop bandwidth across wide input and output voltage ranges.
• Integrated BIAS pin accepts a secondary input to supply the internal INTVCC regulator, enhancing overall system efficiency.

Applications

• Industrial systems requiring high-voltage step-up conversion
• Battery-powered equipment needing extended runtime through low quiescent current
• Automotive electronics operating within wide input voltage fluctuations
• Avionics power supplies demanding reliable high-voltage regulation

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and temperature rating. Ensure compatibility with required thermal management solutions for the DFN-12EP package. Confirm that the intended switching frequency and compensation network align with the datasheet recommendations for stable operation under expected load conditions.

Selection Notes

Select this component when a high-voltage input range up to 60V is required alongside significant current capability. It is suitable for designs prioritizing low standby power consumption without sacrificing transient response. Consider the external compensation requirement if standard fixed-frequency applications do not meet specific bandwidth needs. Evaluate the need for spread spectrum modulation to mitigate electromagnetic interference in sensitive environments.

Part Context

This part belongs to the LT8364 family of low IQ converters designed for high-voltage applications. It shares core functionality with variants like the LT8364EMSE#WPBF but differs in packaging. The DFN-12EP package provides enhanced thermal performance compared to smaller footprints, making it ideal for dense PCB layouts where heat dissipation is critical for sustained 4A switching operations.

Replacement Considerations

LT8364HDE#TRPBF