LTC7813EUH#PBF

DC DC Switching Controllers Overview

The LTC7813EUH#PBF is a synchronous Boost+Buck DC/DC switching regulator controller from Analog Devices, designed for non-isolated power management. It features an input voltage range of 12V to 60V and supports adjustable output voltages from 800mV to 60V. The device operates at a fixed switching frequency of 850 kHz with a maximum duty cycle of 100%. It provides two independent outputs capable of delivering up to 20A. The controller functions within a temperature range of -40°C to +125°C and is housed in a 32-lead QFN package.

DC DC Switching Controllers Feature Summary

• Integrates independent step-up and step-down controllers to regulate separate outputs or cascade for versatile voltage conversion.
• Drives all N-channel power MOSFET stages for high-efficiency synchronous rectification.
• Supports pass-through operation where input voltage equals output voltage without mode switching.
• Features low quiescent current operation suitable for battery-powered applications.

DC DC Switching Controllers Applications

• Wide input range cascaded boost+buck regulators
• Low IQ power systems requiring flexible voltage regulation
• Automotive and industrial DC/DC conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing. Confirm that the EUH variant meets the required thermal and electrical specifications for your design. Check availability status as supply may be restricted in certain regions. Ensure compatibility with N-channel MOSFET drivers for optimal performance.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring both boost and buck capabilities from a single wide-input source. It is suitable for designs needing independent regulation of multiple rails or cascaded topologies. Consider the 850kHz frequency for balancing efficiency and component size. Verify that the 32-pin QFN package fits the PCB layout constraints.

DC DC Switching Controllers Part Context

The LTC7813 belongs to the Analog Devices LTC7813 series of synchronous boost+buck controllers. These devices are part of the PMIC category, specifically designed for non-isolated point-of-load or intermediate bus converter applications. The series offers flexibility in handling input voltages above, below, or equal to the output voltage.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers include LTC7813IUH#PBF and LTC7813MPUH. Verify if the automotive grade (IUH) or low EMI (MPUH) variants meet the specific environmental or noise requirements of the target application.