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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLTC3891EUDC#TRPBF
LTC3891EUDC#TRPBF Image
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See specifications for product details.

LTC3891EUDC#TRPBF - Analog Devices Inc.

Manufacturer Part Number
LTC3891EUDC#TRPBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LTC3891EUDC#TRPBF
ECAD Model
Parts Description
IC REG CTRLR BUCK 20QFN
Detailed Description
Package
20-WFQFN Exposed Pad
Data sheet
LTpowerCAD II User Guide.pdf
LTC3891 Datasheet.pdf
RoHs Status
ROHS3 Compliant
In stock: 5138

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Specifications

LTC3891EUDC#TRPBF Tech Specifications
Analog Devices Inc. - LTC3891EUDC#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC3891EUDC#TRPBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Supply (Vcc/Vdd) 4V ~ 60V  
Topology Buck  
Synchronous Rectifier Yes  
Supplier Device Package 20-QFN (3x4)  
Series -  
Serial Interfaces -  
Package / Case 20-WFQFN Exposed Pad  
Package Tape & Reel (TR)  
Output Type Transistor Driver  
Output Phases 1  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 105kHz ~ 835kHz, 350kHz ~ 535kHz  
Duty Cycle (Max) 99%  
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking  
Clock Sync No  
Base Product Number LTC3891  

Parts Introduction

Manufacturer Part Number

LTC3891EUDC#TRPBF

Manufacturer

Analog Devices, Inc.

Introduction

High-performance, high-efficiency step-down DC/DC converter controller

Ideal for high-power density, point-of-load power supplies

Product Features and Performance

Wide input voltage range: 4V to 60V

Switching frequency range: 105kHz to 835kHz

High efficiency synchronous rectification

Built-in current limit, soft-start, and power good functions

Low quiescent current: 25μA

Product Advantages

Excellent load and line regulation

Cycle-by-cycle current limit

Programmable switching frequency

Adjustable soft-start

Programmable output voltage range

Key Technical Parameters

Input Voltage Range: 4V to 60V

Switching Frequency: 105kHz to 835kHz

Output Current Capability: Dependent on external components

Efficiency: Up to 97%

Quiescent Current: 25μA

Quality and Safety Features

RoHS3 compliant

Overcurrent protection

Thermal shutdown

Compatibility

Compatible with a wide range of power supply architectures

Suitable for high-power density, point-of-load power supplies

Application Areas

Industrial equipment

Telecom and networking equipment

Automotive electronics

Distributed power systems

Product Lifecycle

Currently in production

Replacements and upgrades available from Analog Devices

Key Reasons to Choose This Product

Wide input voltage range for versatile applications

High efficiency and low quiescent current for power-efficient designs

Comprehensive protection features for reliable operation

Flexible configuration options for optimized performance

Proven reliability and quality from Analog Devices

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC3891EUDC#TRPBF

Product Attribute LTC3891EUDC#TRPBF LTC3891HUDC#PBF LTC3890IUH#PBF LTC3891EFE#TRPBF
Part Number LTC3891EUDC#TRPBF LTC3891HUDC#PBF LTC3890IUH#PBF LTC3891EFE#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Supply (Vcc/Vdd) 4V ~ 60V 4V ~ 60V 4V ~ 60V 4V ~ 60V
Topology Buck Buck Buck Buck
Package Tape & Reel (TR) Tube Tube Tape & Reel (TR)
Output Phases 1 1 2 1
Package / Case 20-WFQFN Exposed Pad 20-WFQFN Exposed Pad 32-WFQFN Exposed Pad 20-TSSOP (0.173', 4.40mm Width) Exposed Pad
Number of Outputs 1 1 2 1
Synchronous Rectifier Yes Yes Yes Yes
Output Configuration Positive Positive Positive Positive
Function Step-Down Step-Down Step-Down Step-Down
Frequency - Switching 105kHz ~ 835kHz, 350kHz ~ 535kHz 105kHz ~ 835kHz, 350kHz ~ 535kHz 105kHz ~ 835kHz, 350kHz ~ 535kHz 105kHz ~ 835kHz, 350kHz ~ 535kHz
Series - - PolyPhase® -
Clock Sync No No No No
Control Features Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking Current Limit, 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, Power Good, Soft Start, Tracking
Base Product Number LTC3891 LTC3891 LTC3890 LTC3891
Serial Interfaces - - - -
Supplier Device Package 20-QFN (3x4) 20-QFN (3x4) 32-QFN (5x5) 20-TSSOP-EP
Duty Cycle (Max) 99% 99% 99% 99%
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 150°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver

LTC3891EUDC#TRPBF Datasheet PDF

Download LTC3891EUDC#TRPBF pdf datasheets and Analog Devices Inc. documentation for LTC3891EUDC#TRPBF - Analog Devices Inc..

Other Related Documents
Tape and Reel Packaging.pdf
HTML Datasheet
LTpowerCAD II User Guide.pdf LTC3891 Datasheet.pdf
PCN Assembly/Origin
2.73KHz.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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LTC3891EUDC#TRPBF Image

LTC3891EUDC#TRPBF

Analog Devices Inc.
32D-LTC3891EUDC#TRPBF

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