LT8636MPV#PBF

Overview

The LT8636MPV#PBF is a synchronous step-down Silent Switcher regulator from Analog Devices Inc. It operates with an input voltage range up to 42V and delivers a continuous output current of 5A, with a peak capability of 7A. The device features a positive adjustable output starting at 0.97V. It utilizes a 20-TFQFN package with an exposed pad for thermal management. Designed for high efficiency at elevated switching frequencies, it incorporates Silent Switcher architecture to minimize electromagnetic interference emissions.

Feature Summary

• Silent Switcher architecture designed to minimize EMI radiation
• Synchronous buck topology for high efficiency
• Capable of handling high switching frequencies

Applications

• Industrial systems requiring low noise power supplies
• Automotive electronics within 42V bus architectures
• Point-of-load regulation in communication infrastructure

Procurement Notes

Verify the complete part number including suffixes such as #PBF to ensure lead-free compliance and specific package variants. Confirm that the TFQFN exposed pad requirements match your PCB thermal design specifications. Cross-reference the manufacturer's latest datasheet revision to validate pinout configurations and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when system constraints require minimizing electromagnetic interference without external filtering components. The 42V input rating suits applications exceeding standard 36V limits. Ensure the thermal solution accommodates the 20-TFQFN package dissipation needs under maximum load conditions. Verify that the required output voltage falls within the adjustable range supported by the internal reference.

Part Context

This part belongs to the LT8636/LT8637 family of synchronous step-down regulators. These devices are engineered to address the challenge of achieving high efficiency while maintaining strict electromagnetic compatibility standards. The Silent Switcher technology integrates compensation networks and layout optimizations directly into the silicon to reduce radiated emissions significantly compared to traditional buck converters.

Replacement Considerations

Consult official substitution guides for compatible alternatives within the same product family or series. Verify that any substitute maintains the 42V input rating and 5A continuous current capability. Ensure pin-to-pin compatibility if direct replacement is required without redesigning the printed circuit board layout.

FAQ

What is the minimum output voltage supported by the LT8636MPV#PBF?

The device supports a positive adjustable output voltage starting from 0.97V.

How does the Silent Switcher architecture benefit this regulator?

It minimizes electromagnetic interference (EMI) radiation, allowing for high-frequency operation without extensive external filtering.