LTC7801EFE#PBF

DC DC Switching Controllers Overview

The LTC7801EFE#PBF is a synchronous step-down DC/DC controller from Analog Devices, designed for high-voltage applications with an input voltage range of 4V to 140V and an absolute maximum rating of 150V. It features a fixed switching frequency range of 50 kHz to 900 kHz and supports clock synchronization. The device drives a full N-channel synchronous power MOSFET stage, offering an output voltage range of 800 mV to 60 V. Key electrical parameters include a low operating quiescent current of 40 μA and a shutdown current of 10 μA. It operates within a temperature range of -40°C to +125°C and is housed in a 24-lead TSSOP package with an exposed thermal pad.

DC DC Switching Controllers Feature Summary

• Supports wide input voltage ranges up to 140V for automotive and industrial systems
• Enables efficient power conversion using full N-channel synchronous MOSFET topology
• Provides adjustable gate drive levels via OPTI-DRIVE technology for optimized performance
• Integrates comprehensive protection features including input overvoltage lockout and cycle-by-cycle current limit

DC DC Switching Controllers Applications

• Automotive battery-supplied systems
• Industrial power supply architectures
• Telecommunications power distribution networks

DC DC Switching Controllers Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix #PBF indicates lead-free compliance and RoHS adherence before procurement. Ensure storage conditions meet moisture sensitivity level requirements to maintain package integrity during assembly processes.

DC DC Switching Controllers Selection Notes

Select this controller when designing buck converters requiring high input voltages exceeding standard 60V limits. Consider the 24-lead TSSOP package for thermal management needs due to its exposed pad design. Evaluate the 50 kHz to 900 kHz frequency range against electromagnetic interference constraints and inductor size requirements for the target application.

DC DC Switching Controllers Part Context

This component belongs to the LTC7801 series, which includes variants like the LTC7801IFE and LTC7801HFE. These devices share similar functional characteristics but may differ in package types or temperature grades. The series is engineered for non-isolated synchronous buck applications, providing a scalable solution for high-voltage power management designs across various sectors.

DC DC Switching Controllers Replacement Considerations

Direct substitutes within the same family include the LTC7801IFE#PBF and LTC7801HFE#PBF. Verify pin compatibility and thermal performance specifications when transitioning between these variants to ensure seamless integration into existing circuit layouts without redesigning passive components.