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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLT3991IMSE#PBF
LT3991IMSE#PBF Image
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See specifications for product details.

LT3991IMSE#PBF - Analog Devices Inc.

Manufacturer Part Number
LT3991IMSE#PBF
Manufacturer
Analog Devices, Inc.
Allelco Part Number
32D-LT3991IMSE#PBF
ECAD Model
Parts Description
IC REG BUCK ADJ 1.2A 10MSOP
Detailed Description
Package
10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
Data sheet
LTpowerCAD II User Guide.pdf
LT3991 Datasheet.pdf
RoHs Status
ROHS3 Compliant
In stock: 6892

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Quantity

Specifications

LT3991IMSE#PBF Tech Specifications
Analog Devices Inc. - LT3991IMSE#PBF technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc. - LT3991IMSE#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-MSOP-EP  
Series -  
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 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

LT3991IMSE#PBF

Manufacturer

Analog Devices, Inc.

Introduction

High-Efficiency, Synchronous Step-Down DC/DC Converter

Product Features and Performance

Wide input voltage range of 4.3V to 55V

Adjustable output voltage from 1.19V to 30V

Output current up to 1.2A

Switching frequency range of 200kHz to 2MHz

Synchronous rectification for high efficiency

Soft-start feature to limit inrush current

Thermal shutdown protection

Under-voltage lockout

Current-mode control for fast transient response

Product Advantages

High efficiency over a wide load range

Small solution size with integrated MOSFETs

Adjustable switching frequency for flexibility

Robust protection features

Key Technical Parameters

Input Voltage Range: 4.3V to 55V

Output Voltage Range: 1.19V to 30V

Output Current: 1.2A

Switching Frequency: 200kHz to 2MHz

Package: 10-MSOP-EP

Quality and Safety Features

ROHS3 Compliant

Thermal shutdown protection

Under-voltage lockout

Compatibility

Suitable for a wide range of applications that require a compact, high-efficiency, step-down DC/DC converter

Application Areas

Industrial equipment

Automotive electronics

Telecommunications equipment

Consumer electronics

Product Lifecycle

Current product, no information on discontinuation or replacements

Several Key Reasons to Choose This Product

Wide input voltage range for versatility

High efficiency and adjustable switching frequency for optimized performance

Compact package with integrated MOSFETs for small solution size

Robust protection features for reliable operation

Suitable for a wide range of applications

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc. LT3991IMSE#PBF

Product Attribute LT3991IMSE#PBF LT3992EFE LT3991EMSE-5#TRPBF LT3991IMSE-5#PBF
Part Number LT3991IMSE#PBF LT3992EFE LT3991EMSE-5#TRPBF LT3991IMSE-5#PBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Topology Buck Buck Buck Buck
Output Configuration Positive Positive Positive Positive
Function Step-Down Step-Down Step-Down Step-Down
Base Product Number LT3991 - LT3991 LT3991
Frequency - Switching 200kHz ~ 2MHz 110kHz ~ 2.5MHz 200kHz ~ 2MHz 200kHz ~ 2MHz
Voltage - Output (Min/Fixed) 1.19V 0.8V 5V 5V
Operating Temperature -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ)
Package / Case 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad 38-TFSOP (0.173", 4.40mm 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 - Input (Min) 4.3V 3V 4.3V 4.3V
Voltage - Output (Max) 30V 57V - -
Series - - - -
Supplier Device Package 10-MSOP-EP 38-TSSOP-EP 10-MSOP-EP 10-MSOP-EP
Synchronous Rectifier No No No No
Current - Output 1.2A 3A 1.2A 1.2A
Output Type Adjustable Adjustable Fixed Fixed
Number of Outputs 1 2 1 1
Package Tube Tube Tape & Reel (TR) Tube
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Input (Max) 55V 60V 55V 55V

LT3991IMSE#PBF Datasheet PDF

Download LT3991IMSE#PBF pdf datasheets and Analog Devices Inc. documentation for LT3991IMSE#PBF - Analog Devices Inc..

Datasheets
LTpowerCAD II User Guide.pdf LT3991 Datasheet.pdf
PCN Design/Specification
Mult Dev Mark Chg 4/Feb/2020.pdf
Environmental Information
Material Declaration LT3991IMSE#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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LT3991IMSE#PBF Image

LT3991IMSE#PBF

Analog Devices Inc.
32D-LT3991IMSE#PBF

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