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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLTC3855IUJ#PBF
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LTC3855IUJ#PBF - Analog Devices Inc.

Manufacturer Part Number
LTC3855IUJ#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LTC3855IUJ#PBF
ECAD Model
Parts Description
IC REG CTRLR BUCK 40QFN
Detailed Description
Package
40-WFQFN Exposed Pad
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
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Specifications

LTC3855IUJ#PBF Tech Specifications
Analog Devices Inc. - LTC3855IUJ#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC3855IUJ#PBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V  
Topology Buck  
Synchronous Rectifier Yes  
Supplier Device Package 40-QFN (6x6)  
Series PolyPhase®  
Serial Interfaces -  
Package / Case 40-WFQFN 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 2  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 250kHz ~ 770kHz  
Duty Cycle (Max) 95%  
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking  
Clock Sync No  
Base Product Number LTC3855  

Parts Introduction

Manufacturer Part Number

LTC3855IUJ#PBF

Manufacturer

analog-devices

Introduction

The LTC3855IUJ#PBF is a high-performance, dual-phase synchronous step-down DC/DC controller that provides up to 95% efficiency and can handle input voltages from 4.5V to 38V. It features programmable switching frequency, current limiting, and other advanced control functions to ensure reliable and efficient power delivery.

Product Features and Performance

Dual-phase synchronous step-down DC/DC controller

Input voltage range: 4.5V to 38V

Programmable switching frequency from 250kHz to 770kHz

Maximum duty cycle of 95%

Integrated synchronous rectification

Current limiting and other advanced control features

Operating temperature range: -40°C to 125°C

Product Advantages

High efficiency up to 95%

Wide input voltage range

Programmable switching frequency for flexibility

Comprehensive control features for reliable power delivery

Suitable for a wide range of applications

Key Reasons to Choose This Product

Excellent power efficiency and performance

Versatile design to accommodate various power requirements

Advanced control functions for enhanced reliability and safety

Proven reliability and quality from a trusted manufacturer

Quality and Safety Features

Robust design for reliable operation

Thermal protection and current limiting for safety

RoHS and REACH compliant for environmental responsibility

Compatibility

The LTC3855IUJ#PBF is compatible with a wide range of power supply and load requirements, making it suitable for a variety of applications.

Application Areas

Industrial equipment

Telecommunications infrastructure

Automotive systems

Portable electronics

Distributed power systems

Product Lifecycle

The LTC3855IUJ#PBF is an active product, with no indication of discontinuation. 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 the latest information and availability.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC3855IUJ#PBF

Product Attribute LTC3855IUJ#PBF LTC3856EUH#PBF LTC3857EUH#PBF LTC3855EUJ#PBF
Part Number LTC3855IUJ#PBF LTC3856EUH#PBF LTC3857EUH#PBF LTC3855EUJ#PBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Series PolyPhase® PolyPhase® PolyPhase® PolyPhase®
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Control Features Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start, Tracking
Base Product Number LTC3855 LTC3856 LTC3857 LTC3855
Supplier Device Package 40-QFN (6x6) 32-QFN (5x5) 32-QFN (5x5) 40-QFN (6x6)
Number of Outputs 2 2 2 2
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 85°C (TA)
Frequency - Switching 250kHz ~ 770kHz 250kHz ~ 770kHz 105kHz ~ 835kHz, 350kHz ~ 535kHz 250kHz ~ 770kHz
Duty Cycle (Max) 95% 94% 99.4% 95%
Function Step-Down Step-Down Step-Down Step-Down
Package / Case 40-WFQFN Exposed Pad 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad 40-WFQFN Exposed Pad
Clock Sync No No No No
Package Tube Tube Tube Tube
Output Configuration Positive Positive Positive Positive
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Output Phases 2 2 2 2
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V 4.5V ~ 38V 4V ~ 38V 4.5V ~ 38V
Serial Interfaces - - - -
Topology Buck Buck Buck Buck
Synchronous Rectifier Yes Yes Yes Yes

LTC3855IUJ#PBF Datasheet PDF

Download LTC3855IUJ#PBF pdf datasheets and Analog Devices Inc. documentation for LTC3855IUJ#PBF - Analog Devices Inc..

Datasheets
Cylindrical Battery Holders.pdf
PCN Assembly/Origin
Wafer Fab Location Change 08/Nov/2021.pdf
PCN Design/Specification
Top Mark QFN (6x6) Package 30/Sep/2013.pdf

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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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LTC3855IUJ#PBF Image

LTC3855IUJ#PBF

Analog Devices Inc.
32D-LTC3855IUJ#PBF

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