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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLTC3859AEFE
LTC3859AEFE Image
Image may be representation.
See specifications for product details.

LTC3859AEFE - Analog Devices Inc.

Manufacturer Part Number
LTC3859AEFE
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LTC3859AEFE
ECAD Model
Parts Description
IC POWER MANAGEMENT
Detailed Description
Package
38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Data sheet
LTC3859AEFE.pdf
In stock: 8410

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Specifications

LTC3859AEFE Tech Specifications
Analog Devices Inc. - LTC3859AEFE technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC3859AEFE

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V  
Topology Buck, Buck-Boost, SEPIC  
Synchronous Rectifier Yes  
Supplier Device Package 38-TSSOP-EP  
Series -  
Serial Interfaces -  
Package / Case 38-TFSOP (0.173", 4.40mm Width) Exposed Pad  
Package Tube  
Output Type Transistor Driver  
Output Phases 2  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 3  
Mounting Type Surface Mount  
Function Step-Down, Step-Up/Step-Down  
Frequency - Switching 115kHz ~ 835kHz, 350kHz ~ 535kHz  
Duty Cycle (Max) 99%, 100%  
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking  
Clock Sync No  
Base Product Number LTC3859  

Parts Introduction

Manufacturer Part Number

LTC3859AEFE

Manufacturer

analog-devices

Introduction

The LTC3859AEFE is a high-efficiency, wide-input range, synchronous step-down or step-up/step-down DC/DC controller optimized for high current applications. It features a versatile controller architecture that can be configured for buck, buck-boost, or SEPIC topologies, providing up to 3 regulated outputs.

Product Features and Performance

Operates from 4.5V to 38V input voltage range

Switching frequency range of 115kHz to 835kHz or 350kHz to 535kHz

Supports up to 99% or 100% maximum duty cycle

Integrated synchronous rectification for high efficiency

Up to 3 regulated outputs

2-phase operation for reduced input and output ripple

Programmable soft-start and tracking

Power good indicator

Undervoltage lockout and thermal shutdown protection

Product Advantages

Wide input voltage range and versatile controller architecture

High efficiency and low component count

Flexible configuration options to meet diverse application needs

Robust protection features for reliable operation

Key Reasons to Choose This Product

Proven performance and reliability from a trusted manufacturer

Comprehensive feature set to simplify power supply design

Scalable solution for high-current, high-efficiency power conversion

Cost-effective alternative to discrete solutions

Quality and Safety Features

Designed and manufactured to high quality standards

Robust protection against overcurrent, overvoltage, and overtemperature

Complies with relevant safety and environmental regulations

Compatibility

The LTC3859AEFE is compatible with a wide range of electronic devices and systems that require a flexible, high-performance DC/DC controller.

Application Areas

Industrial and commercial equipment

Telecommunications and networking infrastructure

Automotive and transportation systems

Industrial automation and control

Product Lifecycle

The LTC3859AEFE is an obsolete product, meaning it is no longer in active production. However, there may be equivalent or alternative models available from Analog Devices or other manufacturers. Customers are advised to contact our website's sales team for more information on suitable replacement options.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC3859AEFE

Product Attribute LTC3859AEFE LTC3859AEUHF#PBF LTC3859AIUHF#TRPBF LTC3858EUFD-1#TRPBF
Part Number LTC3859AEFE LTC3859AEUHF#PBF LTC3859AIUHF#TRPBF LTC3858EUFD-1#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Number of Outputs 3 3 3 2
Output Configuration Positive Positive Positive Positive
Package / Case 38-TFSOP (0.173", 4.40mm Width) Exposed Pad 38-WFQFN Exposed Pad 38-WFQFN Exposed Pad 28-WFQFN Exposed Pad
Serial Interfaces - - - -
Control Features Enable, Frequency Control, Power Good, Soft Start, Tracking Enable, Frequency Control, Power Good, Soft Start, Tracking Enable, Frequency Control, Power Good, Soft Start, Tracking Enable, Frequency Control, Power Good, Soft Start
Topology Buck, Buck-Boost, SEPIC Buck, Buck-Boost, SEPIC Buck, Buck-Boost, SEPIC Buck
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V 4.5V ~ 38V 4.5V ~ 38V 4V ~ 38V
Base Product Number LTC3859 LTC3859 LTC3859 LTC3858
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Duty Cycle (Max) 99%, 100% 99%, 100% 99%, 100% 99.4%
Clock Sync No No No No
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package Tube Tube Tape & Reel (TR) Tape & Reel (TR)
Synchronous Rectifier Yes Yes Yes Yes
Output Phases 2 2 2 2
Series - - - -
Function Step-Down, Step-Up/Step-Down Step-Down, Step-Up/Step-Down Step-Down, Step-Up/Step-Down Step-Down
Frequency - Switching 115kHz ~ 835kHz, 350kHz ~ 535kHz 115kHz ~ 835kHz, 350kHz ~ 535kHz 115kHz ~ 835kHz, 350kHz ~ 535kHz 105kHz ~ 835kHz, 350kHz ~ 535kHz
Supplier Device Package 38-TSSOP-EP 38-QFN (5x7) 38-QFN (5x7) 28-QFN (4x5)

LTC3859AEFE Datasheet PDF

Download LTC3859AEFE pdf datasheets and Analog Devices Inc. documentation for LTC3859AEFE - Analog Devices Inc..

PCN Obsolescence/ EOL
Mult Devices OBS 30/Apr/2018.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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LTC3859AEFE Image

LTC3859AEFE

Analog Devices Inc.
32D-LTC3859AEFE

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