LT3991IDD#PBF is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Analog Devices Inc.
In Stock: 0
Unit Price: $8.28000
Datasheet
Buck Switching Regulator IC Positive Adjustable 1.19V 1 Output 1.2A 10-WFDFN Exposed Pad
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Buck Switching Regulator IC Positive Adjustable 1.19V 1 Output 1.2A 10-WFDFN Exposed Pad
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LT3991IDD#PBF

DigiKey Part Number
LT3991IDD#PBF-ND
Manufacturer
Manufacturer Product Number
LT3991IDD#PBF
Description
IC REG BUCK ADJ 1.2A 10DFN
Manufacturer Standard Lead Time
10 Weeks
Customer Reference
Detailed Description
Buck Switching Regulator IC Positive Adjustable 1.19V 1 Output 1.2A 10-WFDFN Exposed Pad
Datasheet
 Datasheet
EDA/CAD Models
LT3991IDD#PBF Models
Product Attributes
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Category
Voltage - Output (Min/Fixed)
Mfr
Voltage - Output (Max)
30V
Packaging
Tube
Current - Output
Part Status
Active
Frequency - Switching
200kHz ~ 2MHz
Function
Step-Down
Synchronous Rectifier
No
Output Configuration
Positive
Operating Temperature
-40°C ~ 125°C (TJ)
Topology
Mounting Type
Surface Mount
Output Type
Package / Case
Number of Outputs
1
Supplier Device Package
10-DFN (3x3)
Voltage - Input (Min)
4.3V
Base Product Number
Voltage - Input (Max)
55V
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LT3991EDD#PBFAnalog Devices Inc.0505-LT3991EDD#PBF-ND$8.28000Parametric Equivalent
In-Stock: 0
121 estimated in stock on 22-Dec-2026
Request Stock Notification
All prices are in USD
Tube
QuantityUnit PriceExt Price
1$10.53000$10.53
10$7.17600$71.76
25$6.30040$157.51
121$5.19975$629.17
363$4.91251$1,783.24
Note: Due to DigiKey value-add services the packaging type may change when product is purchased at quantities beneath the standard package.
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