LTC3859ALIUHF#PBF

$6.76

Description：IC REG CTRLR MULT TOPOLOGY 38QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube

SKU:e9c3334936af Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3859ALIUHF#PBF is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists Analog Devices Inc.. Its product description is IC REG CTRLR MULT TOPOLOGY 38QFN. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3859ALIUHF#PBF

Description：IC REG CTRLR MULT TOPOLOGY 38QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Output Type：Transistor Driver
Function：Step-Down, Step-Up/Step-Down
Output Configuration：Positive
Topology：Buck, Buck-Boost, SEPIC
Number of Outputs：3
Output Phases：2
Voltage - Supply (Vcc/Vdd)：4.5V ~ 38V
Frequency - Switching：115kHz ~ 835kHz, 350kHz ~ 535kHz
Duty Cycle (Max)：99%, 100%
Synchronous Rectifier：Yes
Clock Sync：No
Serial Interfaces：-
Control Features：Enable, Frequency Control, Power Good, Soft Start, Tracking
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：38-WFQFN Exposed Pad
Supplier Device Package：38-QFN (5x7)

DC DC Switching Controllers datasheet and documents for LTC3859ALIUHF#PBF

LTC3859ALIUHF#PBF

DC DC Switching Controllers Overview

The LTC3859ALIUHF#PBF is a synchronous step-down controller featuring three independent outputs with integrated boost functionality. It operates from an input voltage range of 4.5V to 38V, supporting output voltages from 800mV to 24V. The device delivers up to 25A per channel and supports switching frequencies between 75kHz and 850kHz. It utilizes a QFN-38 package and maintains operation across temperatures from -40°C to +125°C.

DC DC Switching Controllers Feature Summary

Integrates three buck channels with one boost capability for flexible power distribution
Features low quiescent current consumption via Burst Mode operation
Supports wide input voltage ranges suitable for industrial applications

DC DC Switching Controllers Applications

Industrial distributed power architectures
Telecommunications infrastructure power supplies
Point-of-load regulation systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and packaging type. Ensure compatibility with required thermal management solutions given the QFN-38 form factor. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

DC DC Switching Controllers Selection Notes

Select this component when designing multi-rail systems requiring high efficiency and low standby power. The integrated boost feature allows generating higher rails from lower inputs. Evaluate thermal performance requirements carefully due to the high current density capabilities of the three-channel architecture within the compact package.

DC DC Switching Controllers Part Context

This part belongs to the LTC3859 family of low IQ synchronous controllers. It shares functional similarities with the standard LTC3859 but offers extended industrial temperature ratings. The device complements other PMIC solutions by providing combined buck and boost control in a single IC.