LT8646SEV#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LT8646SEV#PBF is a synchronous step-down Silent Switcher®2 regulator from Analog Devices Inc. It features an input voltage range of 3.4V to 65V and delivers up to 8A output current. The device offers adjustable output voltages starting from 0.97V with a single positive output configuration. Operating frequencies are programmable between 200kHz and 2.2MHz using an external resistor or clock signal. Packaged in a 32-lead LQFN (6mm x 4mm) with exposed pad, it supports junction temperatures from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Silent Switcher®2 architecture integrates bypass capacitors to minimize EMI radiation and reduce layout sensitivity
• Burst Mode® operation enables ultra-low quiescent current consumption for high efficiency at light loads
• External compensation capability allows for fast transient response and parallel operation for higher current sharing

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive systems including battery-powered applications
• Industrial power supplies and general-purpose buck conversion
• GSM infrastructure power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status via manufacturer documentation before integration. Ensure ordering codes match exact pinout requirements for the 32-LQFN footprint. Cross-reference lead times with authorized distributors as availability fluctuates.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high input voltages up to 65V are required alongside significant current delivery. The integrated bypass capacitors simplify PCB layout compared to standard regulators. External compensation is necessary if precise transient response or load sharing across multiple units is required. Verify thermal management capabilities for the target operating environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LT8645S/LT8646S family of Silent Switcher®2 regulators. It shares architectural similarities with the LT8645S but provides higher current capacity. The series is designed for applications demanding low electromagnetic interference without sacrificing switching frequency performance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LT8645SEV#PBF is documented as a parameter-equivalent alternative within the same product family.