LT8609AJDDM-3.3#TRPBF

$3.87

Description：IC REG BUCK 3.3V 3A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)

SKU:348e8b2d6459 Category: Voltage Regulators - DC DC Switching Regulators Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK 3.3V 3A 10DFN
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Fixed
Number of Outputs：1
Voltage - Input (Min)：3V
Voltage - Input (Max)：42V
Voltage - Output (Min/Fixed)：3.3V
Voltage - Output (Max)：-
Current - Output：3A
Frequency - Switching：200kHz ~ 2.2MHz
Synchronous Rectifier：Yes
Operating Temperature：-40°C ~ 150°C (TJ)
Mounting Type：Surface Mount, Wettable Flank
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-DFN (3x3)

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LT8609AJDDM-3.3#TRPBF

Overview

The LT8609AJDDM-3.3#TRPBF is a synchronous step-down switching regulator from Analog Devices, operating within a 3 V to 42 V input range. It delivers a fixed 3.3 V output with a continuous current capability of 3 A and peak currents up to 3 A. The device features an adjustable switching frequency ranging from 200 kHz to 2.2 MHz and maintains a low quiescent current of 2.5 µA. Packaged in a compact 10-DFN (3x3) surface-mount format, it supports junction temperatures from -40°C to 125°C.

Feature Summary

Integrated Silent Switcher architecture for ultra-low electromagnetic interference radiation
Synchronous buck topology ensuring high conversion efficiency across wide load ranges
Wide input voltage compatibility supporting standard industrial bus voltages
Compact thermal DFN package design facilitating efficient heat dissipation

Applications

Industrial automation power distribution systems
Automotive electronics requiring robust voltage regulation
Telecommunications infrastructure equipment
Portable battery-powered devices needing extended runtime

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging configuration distinct from tube variants. Confirm the 'A' grade designation meets required temperature stability specifications. Ensure component authenticity through authorized distribution channels to avoid counterfeit risks associated with high-demand PMICs.

Selection Notes

Select this variant when a fixed 3.3 V rail is required without external feedback resistor networks. Compare against adjustable versions if flexible output voltages are necessary. Consider the 3 A current limit against peak load demands to prevent thermal throttling or shutdown events during transient conditions.

Part Context

This component belongs to the LT8609 family of Silent Switcher regulators, designed to minimize EMI without external filters. It shares architectural similarities with other members like the LT8609B but offers specific performance characteristics tailored for noise-sensitive applications. The series emphasizes small footprint solutions for modern dense PCB layouts.