LTC7801EUFD#PBF

DC DC Switching Controllers Overview

The LTC7801EUFD#PBF is a synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 140V and supports output voltages from 0.8V to 60V. The device features a programmable switching frequency between 50kHz and 900kHz, with clock synchronization capability from 75kHz to 850kHz. It utilizes a 24-WFQFN (4x5mm) package with an exposed pad for thermal management. The controller supports up to 10A output current and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports wide input voltage ranges up to 140V without requiring external surge suppression components.
• Features adjustable OPTI-DRIVE gate drive levels ranging from 5V to 10V for optimized MOSFET performance.
• Includes integrated bootstrap diode and onboard LDO or external NMOS LDO options for DRVCC supply.
• Offers selectable light load operation modes including continuous, pulse skipping, or low ripple Burst Mode.

DC DC Switching Controllers Applications

• High-voltage battery-powered systems
• Automotive and industrial power systems
• Telecommunications power infrastructure

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the package variant EUFD corresponds to the 24-QFN (4x5mm) footprint. Ensure compatibility with required operating temperatures and input voltage specifications before integration into final designs.

DC DC Switching Controllers Selection Notes

Select this component for applications requiring high input voltage tolerance and flexible frequency programming. Consider the 24-pin QFN package for space-constrained designs. Evaluate the need for clock synchronization if multiple converters are used in parallel systems.

DC DC Switching Controllers Part Context

This part belongs to the LTC7801 family of synchronous buck controllers designed for high-voltage applications. It is distinct from lower voltage variants like the LTC7800 and offers higher input tolerance compared to standard low-voltage regulators.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other parts within the LTC7801 series such as the LTC7801IUFD or LTC7801HUFD, which share similar electrical characteristics but may differ in temperature grades or packaging options.