LT8645SEV#PBF

$12.04

Description：IC REG BUCK ADJ 8A 32LQFN
Series：Silent Switcher®2
Mfr：Analog Devices Inc.
Package：Tray

SKU:5bf5c5805df1 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 8A 32LQFN
Series：Silent Switcher®2
Mfr：Analog Devices Inc.
Package：Tray
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.4V
Voltage - Input (Max)：65V
Voltage - Output (Min/Fixed)：0.97V
Voltage - Output (Max)：65V
Current - Output：8A
Frequency - Switching：200kHz ~ 2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：32-TFQFN Exposed Pad
Supplier Device Package：32-LQFN (6x4)
Grade：-
Qualification：-

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LT8645SEV#PBF

Overview

The LT8645SEV#PBF is a synchronous step-down DC/DC converter from Analog Devices Inc., part of the Silent Switcher®2 series. It features an adjustable output voltage range starting at 0.97V with a maximum input voltage of 65V and a continuous output current capability of 8A. The device utilizes a 32-TFQFN package with exposed pad, operating within a junction temperature range of -40°C to 125°C. Its switching frequency is programmable between 200kHz and 2.2MHz, supporting high efficiency across various load conditions.

Feature Summary

Silent Switcher®2 architecture minimizes EMI radiation without layout sensitivity
Integrated bypass capacitors optimize internal current loops for cleaner switching edges
Burst Mode operation enables ultra-low quiescent current consumption in light loads
External compensation support allows for fast transient response and parallel operation

Applications

Automotive power systems
Industrial equipment regulation
GSM infrastructure power supplies
General-purpose step-down conversion

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required package and temperature grade. Request original datasheets and test reports to ensure compliance with RoHS standards. Validate supply chain integrity to avoid counterfeit components affecting system reliability.

Selection Notes

Select this regulator when high input voltages up to 65V are required alongside significant current delivery. The Silent Switcher technology is ideal for applications sensitive to electromagnetic interference where standard layouts cannot be modified. External compensation makes it suitable for designs requiring precise transient control or multi-phase synchronization.

Part Context

This component belongs to the LT8645S/LT8646S family of synchronous buck regulators. It shares architectural similarities with the LT8646S but differs in compensation configuration, offering fixed internal compensation for simplified design. It complements other Silent Switcher products by providing robust performance in space-constrained environments.