LTC7813IUH#TRPBF

DC DC Switching Controllers Overview

The LTC7813IUH#TRPBF is a high-performance synchronous Boost+Buck DC/DC switching regulator controller designed to drive all N-channel power MOSFET stages. It features independent step-up and step-down controllers capable of regulating two separate outputs or cascading to manage input voltages above, below, or equal to the output voltage. The device supports an input voltage range of 4.5V to 60V with adjustable output voltages from 800mV to 60V. It operates at a fixed switching frequency of 850kHz and delivers up to 20A output current. The component functions within a temperature range of -40°C to +125°C and utilizes a 32-pin QFN package.

DC DC Switching Controllers Feature Summary

• Integrates independent boost and buck controllers for flexible single or dual output regulation
• Supports cascaded operation to handle input voltages higher than, lower than, or equal to the output
• Drives all N-channel power MOSFET stages for high-efficiency synchronous rectification
• Features low quiescent current operation suitable for battery-powered applications

DC DC Switching Controllers Applications

• Automotive electronics requiring wide input voltage ranges
• Industrial power supplies with variable input sources
• Point-of-load (POL) converters in distributed power architectures
• Systems requiring cascaded boost-buck topologies for voltage translation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm that the IUH variant meets automotive qualification standards if required for your application. Ensure the 32-pin QFN footprint matches your PCB layout constraints. Cross-reference the datasheet for thermal pad requirements to guarantee proper heat dissipation during operation.

DC DC Switching Controllers Selection Notes

Select this controller when a single IC must manage both step-up and step-down conversion needs without external logic complexity. It is ideal for applications where input voltage fluctuates significantly around the target output level. Consider the 850kHz fixed frequency for balancing efficiency and component size. Verify that the external MOSFETs selected can handle the 20A current capability and voltage ratings specified.

DC DC Switching Controllers Part Context

The LTC7813 belongs to Analog Devices' family of advanced synchronous switching regulator controllers. It complements other PMIC solutions by offering versatile topology options in a compact form factor. The device is part of the broader LTC78xx series, which focuses on high-efficiency power management for demanding industrial and automotive environments.

DC DC Switching Controllers Replacement Considerations

Direct replacements include the LTC7813EUH#PBF for tube packaging or the LTC7813MPUH for military-grade specifications. Ensure pinout compatibility and electrical parameter alignment when substituting. Verify that any alternative maintains the same 32-pin QFN package dimensions for board integration.