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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLT8643SIV-2#PBF
LT8643SIV-2#PBF Image
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See specifications for product details.

LT8643SIV-2#PBF - Analog Devices Inc.

Manufacturer Part Number
LT8643SIV-2#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT8643SIV-2#PBF
ECAD Model
Parts Description
IC REG BUCK ADJUSTABLE 6A 24LQFN
Detailed Description
Package
24-TFQFN Exposed Pad
Data sheet
LT8640S-2, LT8643S-2.pdf
RoHs Status
ROHS3 Compliant
In stock: 3138

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Quantity

Specifications

LT8643SIV-2#PBF Tech Specifications
Analog Devices Inc. - LT8643SIV-2#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT8643SIV-2#PBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Output (Min/Fixed) 0.97V  
Voltage - Output (Max) 42V  
Voltage - Input (Min) 3.4V  
Voltage - Input (Max) 42V  
Topology Buck  
Synchronous Rectifier Yes  
Supplier Device Package 24-LQFN (4x4)  
Series Silent Switcher®2  
Package / Case 24-TFQFN Exposed Pad  
Product Attribute Attribute Value  
Package Tray  
Output Type Adjustable  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 180kHz ~ 2.1MHz  
Current - Output 6A  
Base Product Number LT8643  

Parts Introduction

Manufacturer Part Number

LT8643SIV-2#PBF

Manufacturer

Analog Devices

Introduction

The LT8643SIV-2#PBF is a high-performance step-down switching regulator from Analog Devices' Silent Switcher®2 series. It is designed for power management applications requiring low noise and high efficiency.

Product Features and Performance

Step-Down (Buck) topology

Adjustable output voltage

Supports input voltage from 3.4V to 42V

Provides output voltage from 0.97V to 42V

Output current capacity of 6A

Switching frequency between 180kHz and 2.1MHz

Integrated synchronous rectifier for improved efficiency

Operates over a temperature range of -40°C to 125°C

Surface mount package

Product Advantages

Low noise operation due to Silent Switcher®2 technology

High efficiency suitable for sensitive applications

Versatile input and output voltage range accommodates varied applications

Robust thermal performance for reliability under varying operating conditions

Key Technical Parameters

Voltage Input (Min): 3.4V

Voltage Input (Max): 42V

Voltage Output (Min/Fixed): 0.97V

Voltage Output (Max): 42V

Current Output: 6A

Frequency Switching: 180kHz ~ 2.1MHz

Synchronous Rectifier: Yes

Quality and Safety Features

Comprehensive thermal and over-current protections

Stable operation across a wide temperature and voltage range ensures long-term reliability

Compatibility

Compatible with various standard surface mount technologies

Flexibility in usage across a broad range of electronic circuits and applications

Application Areas

Telecommunications

Industrial Power Supplies

Automotive Electronics

High-performance embedded systems

Product Lifecycle

Currently Active status

Not facing discontinuation and replacements or upgrades are available

Several Key Reasons to Choose This Product

Superior noise reduction technology makes it ideal for noise-sensitive applications

High output current capacity suitable for high-power applications

Wide input and output voltage ranges offer flexibility in various usage scenarios

High switching frequency allows for smaller external components, reducing overall solution size

Proven quality and reliability from a trusted manufacturer in power management solutions

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT8643SIV-2#PBF

Product Attribute LT8643SIV-2#PBF LT8643SHV-2#PBF LT8643SIV#PBF LT8643SEV-2#PBF
Part Number LT8643SIV-2#PBF LT8643SHV-2#PBF LT8643SIV#PBF LT8643SEV-2#PBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Voltage - Output (Max) 42V 42V 42V 42V
Voltage - Output (Min/Fixed) 0.97V 0.97V 0.97V 0.97V
Output Configuration Positive Positive Positive Positive
Synchronous Rectifier Yes Yes Yes Yes
Output Type Adjustable Adjustable Adjustable Adjustable
Package / Case 24-TFQFN Exposed Pad 24-TFQFN Exposed Pad 24-TFQFN Exposed Pad 24-TFQFN Exposed Pad
Number of Outputs 1 1 1 1
Package Tray Tray Tray Tray
Frequency - Switching 180kHz ~ 2.1MHz 180kHz ~ 2.1MHz 200kHz ~ 3MHz 180kHz ~ 2.1MHz
Voltage - Input (Min) 3.4V 3.4V 3.4V 3.4V
Supplier Device Package 24-LQFN (4x4) 24-LQFN (4x4) 24-LQFN (4x4) 24-LQFN (4x4)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Function Step-Down Step-Down Step-Down Step-Down
Base Product Number LT8643 LT8643 LT8643 LT8643
Operating Temperature -40°C ~ 125°C -40°C ~ 150°C -40°C ~ 125°C (TJ) -40°C ~ 125°C
Series Silent Switcher®2 Silent Switcher®2 Silent Switcher®2 Silent Switcher®2
Current - Output 6A 6A 6A 6A
Topology Buck Buck Buck Buck
Voltage - Input (Max) 42V 42V 42V 42V

LT8643SIV-2#PBF Datasheet PDF

Download LT8643SIV-2#PBF pdf datasheets and Analog Devices Inc. documentation for LT8643SIV-2#PBF - Analog Devices Inc..

Datasheets
LT8640S-2, LT8643S-2.pdf
PCN Assembly/Origin
Mult Devices 17/May/2019.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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LT8643SIV-2#PBF

Analog Devices Inc.
32D-LT8643SIV-2#PBF

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