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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLTC3859IUHF#TRPBF
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LTC3859IUHF#TRPBF - Analog Devices Inc.

Manufacturer Part Number
LTC3859IUHF#TRPBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LTC3859IUHF#TRPBF
ECAD Model
Parts Description
IC REG CTRLR MULT TOPOLOGY 38QFN
Detailed Description
Package
38-WFQFN Exposed Pad
Data sheet
LTC3859.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 3573
  • Unit Price: $12.93
  • Subtotal: $0.00

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Specifications

LTC3859IUHF#TRPBF Tech Specifications
Analog Devices Inc. - LTC3859IUHF#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC3859IUHF#TRPBF

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-QFN (5x7)  
Series -  
Serial Interfaces -  
Package / Case 38-WFQFN Exposed Pad  
Package Tape & Reel (TR)  
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

LTC3859IUHF#TRPBF

Manufacturer

analog-devices

Introduction

The LTC3859 is a high-performance, low noise, dual-phase, synchronous step-down switching regulator controller that can operate from a wide 4.5V to 38V input voltage range. It features an internal 100V bias supply, enabling it to regulate outputs as low as 0.8V. The controller can be configured for either fixed frequency or constant on-time operation, and it includes a precision 1% reference, accurate current sensing, and comprehensive protection features.

Product Features and Performance

Wide 4.5V to 38V input voltage range

Internal 100V bias supply

8V to 34V output voltage range

Up to 99% duty cycle

115kHz to 835kHz, 350kHz to 535kHz switching frequency range

2-phase operation for reduced input and output ripple

Precision 1% internal reference

Accurate current sensing

Comprehensive protection features including over-voltage, under-voltage, over-current, and thermal shutdown

Product Advantages

Wide input voltage range

High efficiency and low noise operation

Accurate current sensing and protection features

Flexibility in frequency and duty cycle selection

Space-saving 2-phase design

Key Reasons to Choose This Product

Reliable and efficient power conversion for a wide range of applications

Comprehensive protection features for safe and reliable operation

Flexible configuration options to meet specific design requirements

Proven performance and reliability from a trusted manufacturer

Quality and Safety Features

Robust design and protection features for reliable operation

Compliant with industry safety and environmental standards

Manufactured in ISO-certified facilities for consistent quality

Compatibility

Compatible with a wide range of power supply and load configurations

Can be used in various applications, including industrial, automotive, and telecommunications equipment

Application Areas

Industrial equipment

Automotive systems

Telecommunications infrastructure

General-purpose power supplies

Product Lifecycle

The LTC3859 is an active product, and there are no known equivalent or alternative models at this time. If you have any questions or need further assistance, please contact our sales team through our website.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC3859IUHF#TRPBF

Product Attribute LTC3859IUHF#TRPBF LTC3861EUHE#TRPBF LTC3861EUHE#PBF LTC3859EFE#TRPBF
Part Number LTC3859IUHF#TRPBF LTC3861EUHE#TRPBF LTC3861EUHE#PBF LTC3859EFE#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Duty Cycle (Max) 99%, 100% 91.5% 91.5% 99%, 100%
Output Configuration Positive Positive Positive Positive
Package / Case 38-WFQFN Exposed Pad 36-WFQFN Exposed Pad 36-WFQFN Exposed Pad 38-TFSOP (0.173", 4.40mm Width) Exposed Pad
Synchronous Rectifier Yes No No Yes
Series - PolyPhase® PolyPhase® -
Serial Interfaces - - - -
Number of Outputs 3 2 2 3
Supplier Device Package 38-QFN (5x7) 36-QFN (5x6) 36-QFN (5x6) 38-TSSOP-EP
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Package Tape & Reel (TR) Tape & Reel (TR) Tube Tape & Reel (TR)
Output Phases 2 2 2 2
Frequency - Switching 115kHz ~ 835kHz, 350kHz ~ 535kHz 250kHz ~ 3MHz 250kHz ~ 3MHz 115kHz ~ 835kHz, 350kHz ~ 535kHz
Base Product Number LTC3859 LTC3861 LTC3861 LTC3859
Voltage - Supply (Vcc/Vdd) 4.5V ~ 38V 3V ~ 5.5V 3V ~ 5.5V 4.5V ~ 38V
Control Features Enable, Frequency 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 Enable, Frequency Control, Power Good, Soft Start, Tracking
Output Type Transistor Driver PWM Signal PWM Signal Transistor Driver
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Clock Sync No No No No
Function Step-Down, Step-Up/Step-Down Step-Down Step-Down Step-Down, Step-Up/Step-Down
Topology Buck, Buck-Boost, SEPIC Buck Buck Buck, Buck-Boost, SEPIC

LTC3859IUHF#TRPBF Datasheet PDF

Download LTC3859IUHF#TRPBF pdf datasheets and Analog Devices Inc. documentation for LTC3859IUHF#TRPBF - Analog Devices Inc..

Datasheets
LTC3859.pdf
Other Related Documents
Tape and Reel Packaging.pdf
PCN Assembly/Origin
2.73KHz.pdf
Getting Started Guide
LTpowerPlanner III Quick Start Guide.pdf
Environmental Information
Material Declaration LTC3859IUHF#TRPBF.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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LTC3859IUHF#TRPBF

Analog Devices Inc.
32D-LTC3859IUHF#TRPBF

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