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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLT3991EDD#PBF
LT3991EDD#PBF Image
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See specifications for product details.

LT3991EDD#PBF - Analog Devices Inc.

Manufacturer Part Number
LT3991EDD#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT3991EDD#PBF
ECAD Model
Parts Description
IC REG BUCK ADJ 1.2A 10DFN
Detailed Description
Package
10-WFDFN Exposed Pad
Data sheet
LTpowerCAD II User Guide.pdf
LT3991 Datasheet.pdf
RoHs Status
ROHS3 Compliant
In stock: 6209

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Specifications

LT3991EDD#PBF Tech Specifications
Analog Devices Inc. - LT3991EDD#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT3991EDD#PBF

Product Attribute Attribute Value  
Manufacturer Analog Devices, Inc.  
Voltage - Output (Min/Fixed) 1.19V  
Voltage - Output (Max) 30V  
Voltage - Input (Min) 4.3V  
Voltage - Input (Max) 55V  
Topology Buck  
Synchronous Rectifier No  
Supplier Device Package 10-DFN (3x3)  
Series -  
Package / Case 10-WFDFN Exposed Pad  
Product Attribute Attribute Value  
Package Tube  
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 200kHz ~ 2MHz  
Current - Output 1.2A  
Base Product Number LT3991  

Parts Introduction

Manufacturer Part Number

LT3991EDD#PBF

Manufacturer

Analog Devices

Introduction

The LT3991EDD#PBF is a versatile DC-DC converter from Analog Devices, designed for power management applications.

Product Features and Performance

Step-down (buck) regulator

Adjustable output voltage

Single output design

Wide input voltage range of 4.3V to 55V

Adjustable output voltage from 1.19V up to 30V

Output current capability of up to 1.2A

Flexible switching frequency from 200kHz to 2MHz

Operates without the need for a synchronous rectifier

High temperature operational range from -40°C to 125°C

Product Advantages

Efficient power conversion for a wide range of input voltages

Adjustable output allows for a variety of applications

High frequency switching enables the use of smaller components

Key Technical Parameters

Voltage - Input (Min): 4.3V

Voltage - Input (Max): 55V

Voltage - Output (Min/Fixed): 1.19V

Voltage - Output (Max): 30V

Current - Output: 1.2A

Frequency - Switching: 200kHz ~ 2MHz

Operating Temperature Range: -40°C ~ 125°C

Quality and Safety Features

Built to operate reliably in extended temperature ranges

Manufactured by Analog Devices, known for high-quality electronic components

Compatibility

Compatibility with a variety of surface mount techniques

Package / Case suitable for standard PCB design layouts

Application Areas

Telecommunications

Automotive electronics

Industrial control systems

Portable devices

Power supply modules

Product Lifecycle

Status: Active

Not nearing discontinuation

Availability of replacements or upgrades should be verified with the manufacturer

Several Key Reasons to Choose This Product

Wide input voltage range suitable for many different types of systems

High level of integration reduces external component requirements

Robust temperature range ensures performance in harsh environments

Flexible switching frequency for optimization of efficiency and component size

Proven manufacturer with a reputation for reliability and performance

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT3991EDD#PBF

Product Attribute LT3991EDD#PBF LT3990IMSE#TRPBF LT3990IMSE-3.3#TRPBF LT3991EMSE#TRPBF
Part Number LT3991EDD#PBF LT3990IMSE#TRPBF LT3990IMSE-3.3#TRPBF LT3991EMSE#TRPBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Output Type Adjustable Adjustable Fixed Adjustable
Frequency - Switching 200kHz ~ 2MHz 210kHz ~ 2.3MHz 210kHz ~ 2.3MHz 200kHz ~ 2MHz
Voltage - Output (Max) 30V 25V - 30V
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Topology Buck Buck Buck Buck
Voltage - Output (Min/Fixed) 1.19V 1.21V 3.3V 1.19V
Package Tube Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Voltage - Input (Min) 4.3V 4.2V 4.2V 4.3V
Function Step-Down Step-Down Step-Down Step-Down
Synchronous Rectifier No No No No
Supplier Device Package 10-DFN (3x3) 16-MSOP-EP 16-MSOP-EP 10-MSOP-EP
Current - Output 1.2A 350mA 350mA 1.2A
Series - - - -
Output Configuration Positive Positive Positive Positive
Package / Case 10-WFDFN Exposed Pad 16-TFSOP (0.118', 3.00mm Width) Exposed Pad 16-TFSOP (0.118', 3.00mm Width) Exposed Pad 10-TFSOP, 10-MSOP (0.118', 3.00mm Width) Exposed Pad
Base Product Number LT3991 LT3990 LT3990 LT3991
Voltage - Input (Max) 55V 62V 62V 55V
Number of Outputs 1 1 1 1

LT3991EDD#PBF Datasheet PDF

Download LT3991EDD#PBF pdf datasheets and Analog Devices Inc. documentation for LT3991EDD#PBF - Analog Devices Inc..

Datasheets
LTpowerCAD II User Guide.pdf LT3991 Datasheet.pdf
Environmental Information
Material Declaration LT3991EDD#PBF.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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LT3991EDD#PBF Image

LT3991EDD#PBF

Analog Devices Inc.
32D-LT3991EDD#PBF

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