LTC3859AEFE#PBF

$11.36

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

SKU:bd06b8b9c952 Category: DC DC Switching Controllers Brand: Analog Devices Inc.

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Product introduction

LTC3859AEFE#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 TOP 38TSSOP. Review the specifications below when checking this part for your BOM.

DC DC Switching Controllers specifications for LTC3859AEFE#PBF

Description：IC REG CTRLR MULT TOP 38TSSOP
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-TFSOP (0.173", 4.40mm Width) Exposed Pad
Supplier Device Package：38-TSSOP-EP

DC DC Switching Controllers datasheet and documents for LTC3859AEFE#PBF

LTC3859AEFE#PBF

DC DC Switching Controllers Overview

The LTC3859AEFE#PBF is a high-performance triple output synchronous DC/DC switching regulator controller designed to drive all N-channel power MOSFET stages. It supports Buck, Buck, and Boost topologies with an input voltage range of 2.5V to 38V. The device offers three independent outputs, typically configured for voltages such as 3.3V, 8.5V, or 12V, with corresponding output currents up to 5A at 3.3V and 3A at higher voltages. Operating frequencies range from 75kHz to 850kHz, and it features low quiescent current of 55µA. The component operates within a temperature range of -40°C to +125°C and utilizes a TSSOP-EP-38 package.

DC DC Switching Controllers Feature Summary

Supports triple output configurations combining dual buck and single boost channels
Drives all N-channel power MOSFET stages for synchronous rectification
Features improved Burst Mode operation for enhanced light-load efficiency
Provides wide input voltage compatibility for diverse system requirements

DC DC Switching Controllers Applications

Industrial equipment requiring multiple regulated voltage rails
Telecommunications infrastructure power distribution systems
Embedded computing platforms with mixed voltage logic levels
Automotive electronics control units

DC DC Switching Controllers Procurement Notes

Verify the complete part number including suffixes against manufacturer specifications to ensure correct package and temperature grade. Confirm RoHS compliance status through official documentation. Cross-reference distributor listings with Analog Devices official data sheets to validate authenticity. Ensure ordering quantities align with factory packaging constraints specified in procurement catalogs.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring simultaneous buck and boost regulation from a single wide-range input source. Consider the maximum output current capabilities relative to thermal management requirements. Evaluate the switching frequency settings against electromagnetic interference constraints. Ensure external MOSFET selection matches the gate drive characteristics provided by the controller.

DC DC Switching Controllers Part Context

The LTC3859 series belongs to Analog Devices' portfolio of advanced power management integrated circuits. It serves as a versatile solution for complex power architectures needing multiple isolated or non-isolated rails. The device integrates control logic for precise voltage regulation and protection features, enabling compact designs in space-constrained applications.