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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLT3973IDD#TRPBF
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LT3973IDD#TRPBF - Analog Devices Inc.

Manufacturer Part Number
LT3973IDD#TRPBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT3973IDD#TRPBF
ECAD Model
Parts Description
IC REG BUCK ADJ 750MA 10DFN
Package
10-WFDFN Exposed Pad
Data sheet
LTpowerCAD II User Guide.pdf
LTpowerCAD II Quick Start Guide.pdf
LT3973(-3.3,-5) Datasheet.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 6091

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Specifications

LT3973IDD#TRPBF Tech Specifications
Analog Devices Inc. - LT3973IDD#TRPBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT3973IDD#TRPBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Output (Min/Fixed) 1.21V  
Voltage - Output (Max) 24V  
Voltage - Input (Min) 4.2V  
Voltage - Input (Max) 42V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package 10-DFN (3x3)  
Series -  
Package / Case 10-WFDFN Exposed Pad  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Output Type Adjustable  
Output Configuration Positive  
Operating Temperature -40°C ~ 125°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 195kHz ~ 2.15MHz  
Current - Output 750mA  
Base Product Number LT3973  

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

LT3973IDD#TRPBF

Manufacturer

Analog Devices

Introduction

The LT3973 is a high efficiency, synchronous step-down DC/DC converter that operates from a wide input voltage range of 4.2V to 42V. It features an adjustable output voltage from 1.21V to 24V and can deliver up to 750mA of output current. The device utilizes a fixed frequency, current mode architecture to provide fast transient response and excellent loop stability.

Product Features and Performance

Wide input voltage range: 4.2V to 42V

Adjustable output voltage: 1.21V to 24V

Output current up to 750mA

Fixed frequency operation: 195kHz to 2.15MHz

Current mode control for fast transient response and excellent loop stability

Internal compensation eliminates the need for external compensation components

Integrated high-side and low-side MOSFET switches

Shutdown mode reduces quiescent current to 1μA

Thermal shutdown protection

Available in 10-pin 3mm x 3mm DFN package

Product Advantages

Wide input voltage range for versatile applications

Adjustable output voltage for flexibility

High efficiency to minimize power losses

Fast transient response and stable operation

Compact package size for space-constrained designs

Thermal shutdown protection for reliable operation

Key Reasons to Choose This Product

Exceptional power conversion efficiency and output current capability

Ease of use with internal compensation and small solution size

Robust protection features for reliable performance

Ideal for a wide range of applications requiring a flexible and efficient DC/DC converter

Quality and Safety Features

AEC-Q100 qualified for automotive applications

RoHS and REACH compliant

Underwriters Laboratories (UL) recognized component

Compatibility

The LT3973 is compatible with a variety of power supply and system requirements, making it suitable for a broad range of applications, including:

Industrial equipment

Automotive electronics

Telecommunications infrastructure

Consumer electronics

Portable devices

Application Areas

DC/DC conversion in industrial, automotive, and consumer electronics

Power supplies for microcontrollers, DSPs, and other sensitive electronics

Battery-powered devices and systems

LED lighting and other power-critical applications

Product Lifecycle

The LT3973 is an active product in our website's sales team's portfolio. There are no direct equivalent or alternative models currently available. For the latest product information and availability, please contact our website's sales team.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT3973IDD#TRPBF

Product Attribute LT3973IDD#TRPBF LT3973IMSE#TRPBF LT3973EMSE-5#PBF LT3973EMSE-5#TRPBF
Part Number LT3973IDD#TRPBF LT3973IMSE#TRPBF LT3973EMSE-5#PBF LT3973EMSE-5#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Number of Outputs 1 1 1 1
Voltage - Input (Max) 42V 42V 42V 42V
Series - - - -
Current - Output 750mA 750mA 750mA 750mA
Function Step-Down Step-Down Step-Down Step-Down
Base Product Number LT3973 LT3973 LT3973 LT3973
Voltage - Input (Min) 4.2V 4.2V 4.2V 4.2V
Package Tape & Reel (TR) Tape & Reel (TR) Tube Tape & Reel (TR)
Voltage - Output (Max) 24V 24V - -
Output Type Adjustable Adjustable Fixed Fixed
Supplier Device Package 10-DFN (3x3) 10-MSOP-EP 10-MSOP-EP 10-MSOP-EP
Synchronous Rectifier No No No No
Package / Case 10-WFDFN Exposed Pad 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad 10-TFSOP, 10-MSOP (0.118', 3.00mm Width) Exposed Pad 10-TFSOP, 10-MSOP (0.118', 3.00mm Width) Exposed Pad
Voltage - Output (Min/Fixed) 1.21V 1.21V 5V 5V
Frequency - Switching 195kHz ~ 2.15MHz 195kHz ~ 2.15MHz 195kHz ~ 2.15MHz 195kHz ~ 2.15MHz
Output Configuration Positive Positive Positive Positive
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Topology Buck Buck Buck Buck
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)

LT3973IDD#TRPBF Datasheet PDF

Download LT3973IDD#TRPBF pdf datasheets and Analog Devices Inc. documentation for LT3973IDD#TRPBF - Analog Devices Inc..

Datasheets
LTpowerCAD II User Guide.pdf LTpowerCAD II Quick Start Guide.pdf LT3973(-3.3,-5) Datasheet.pdf
Other Related Documents
Tape and Reel Packaging.pdf
Environmental Information
Material Declaration LT3973IDD#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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LT3973IDD#TRPBF

Analog Devices Inc.
32D-LT3973IDD#TRPBF

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