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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching ControllersLTC3731CUH#PBF
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LTC3731CUH#PBF - Analog Devices Inc.

Manufacturer Part Number
LTC3731CUH#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LTC3731CUH#PBF
ECAD Model
Parts Description
IC REG CTRLR BUCK 32QFN
Package
32-WFQFN Exposed Pad
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 4559

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Specifications

LTC3731CUH#PBF Tech Specifications
Analog Devices Inc. - LTC3731CUH#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LTC3731CUH#PBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Supply (Vcc/Vdd) 3.8V ~ 7V  
Topology Buck  
Synchronous Rectifier Yes  
Supplier Device Package 32-QFN (5x5)  
Series PolyPhase®  
Serial Interfaces -  
Package / Case 32-WFQFN Exposed Pad  
Package Tube  
Output Type Transistor Driver  
Output Phases 3  
Product Attribute Attribute Value  
Output Configuration Positive  
Operating Temperature 0°C ~ 70°C (TA)  
Number of Outputs 3  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 225kHz ~ 680kHz  
Duty Cycle (Max) 98.5%  
Control Features Enable, Phase Control, Power Good, Soft Start  
Clock Sync No  
Base Product Number LTC3731  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

LTC3731CUH#PBF

Manufacturer

Analog Devices

Introduction

The LTC3731CUH#PBF is a high-performance PolyPhase® DC-DC Switching Controller designed for step-down voltage regulation in power management applications.

Product Features and Performance

Three output buck topology with transistor driver for efficient power conversion

Supports synchronous rectification for improved efficiency

Features soft start capability to minimize inrush current during startup

Supports enable, phase control, and power good functionalities for enhanced power management

Operates at a switching frequency range of 225kHz to 680kHz allowing flexibility in component selection

Capable of handling duty cycles up to 98.5%

Product Advantages

High efficiency and reliability due to synchronous rectifier technology

Flexible power management and enhanced control features suitable for complex systems

Compact 32-WFQFN package suitable for space-constrained applications

Key Technical Parameters

Voltage Supply (Vcc/Vdd): 3.8V to 7V

Duty Cycle (Max): 98.5%

Output Phases: 3

Switching Frequency: 225kHz to 680kHz

Operating Temperature: 0°C to 70°C

Quality and Safety Features

Constructed to operate reliably within a 0°C to 70°C temperature range

Robust package design ensures reliable surface mount installations

Compatibility

Compatible with a wide range of external components within a 3.8V to 7V supply voltage

Application Areas

Telecommunication systems

Servers and networking equipment

Industrial control systems

Product Lifecycle

Currently active product with ongoing support and production

No immediate discontinuation planned, replacements or upgrades available

Several Key Reasons to Choose This Product

Exceptional power efficiency facilitating reduced energy consumption and heat generation

Versatile power and control features supporting complex multi-phase applications

Robust design ensuring product reliability and longevity in various application environments

Adaptable to multiple configurations due to flexible switching frequency and high-duty cycle range

Suitable for advanced power regulation requirements in telecommunications and industrial applications

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LTC3731CUH#PBF

Product Attribute LTC3731CUH#PBF LTC3731HG#TRPBF LTC3731CUH#TRPBF LTC3731HUH#TRPBF
Part Number LTC3731CUH#PBF LTC3731HG#TRPBF LTC3731CUH#TRPBF LTC3731HUH#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Serial Interfaces - - - -
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Output Type Transistor Driver Transistor Driver Transistor Driver Transistor Driver
Supplier Device Package 32-QFN (5x5) 36-SSOP 32-QFN (5x5) 32-QFN (5x5)
Clock Sync No No No No
Voltage - Supply (Vcc/Vdd) 3.8V ~ 7V 3.8V ~ 7V 3.8V ~ 7V 3.8V ~ 7V
Topology Buck Buck Buck Buck
Operating Temperature 0°C ~ 70°C (TA) -40°C ~ 140°C (TJ) 0°C ~ 70°C (TA) -40°C ~ 140°C (TJ)
Number of Outputs 3 3 3 3
Output Configuration Positive Positive Positive Positive
Output Phases 3 3 3 3
Base Product Number LTC3731 LTC3731 LTC3731 LTC3731
Package / Case 32-WFQFN Exposed Pad 36-SSOP (0.209", 5.30mm Width) 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Control Features Enable, Phase Control, Power Good, Soft Start Enable, Phase Control, Power Good, Soft Start Enable, Phase Control, Power Good, Soft Start Enable, Phase Control, Power Good, Soft Start
Function Step-Down Step-Down Step-Down Step-Down
Series PolyPhase® PolyPhase® PolyPhase® PolyPhase®
Duty Cycle (Max) 98.5% 98.5% 98.5% 98.5%
Synchronous Rectifier Yes Yes Yes Yes
Frequency - Switching 225kHz ~ 680kHz 225kHz ~ 680kHz 225kHz ~ 680kHz 225kHz ~ 680kHz

LTC3731CUH#PBF Datasheet PDF

Download LTC3731CUH#PBF pdf datasheets and Analog Devices Inc. documentation for LTC3731CUH#PBF - Analog Devices Inc..

Datasheets
Cylindrical Battery Holders.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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LTC3731CUH#PBF

Analog Devices Inc.
32D-LTC3731CUH#PBF

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