LM43603DSUT is out of stock and can be placed on backorder.
Available Substitutes:

Parametric Equivalent


Texas Instruments
In Stock: 0
Unit Price: $4.83000
Datasheet
Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 16-VFDFN Exposed Pad
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

LM43603DSUT

DigiKey Part Number
296-46613-2-ND - Tape & Reel (TR)
296-46613-1-ND - Cut Tape (CT)
296-46613-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM43603DSUT
Description
IC REG BUCK ADJ 3A 16SON
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 16-VFDFN Exposed Pad
Datasheet
 Datasheet
EDA/CAD Models
LM43603DSUT Models
Product Attributes
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Category
Voltage - Input (Max)
36V
Mfr
Voltage - Output (Min/Fixed)
Series
Voltage - Output (Max)
28V
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Current - Output
Part Status
Active
Frequency - Switching
200kHz ~ 2.2MHz
Function
Step-Down
Synchronous Rectifier
Yes
Output Configuration
Positive
Operating Temperature
-40°C ~ 125°C (TJ)
Topology
Mounting Type
Surface Mount, Wettable Flank
Output Type
Package / Case
Number of Outputs
1
Supplier Device Package
16-SON (4x5)
Voltage - Input (Min)
3.5V
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (1)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM43603DSURTexas Instruments0296-51302-2-ND$4.83000Parametric Equivalent
In-Stock: 0
250 estimated in stock on 18-Dec-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$5.61000$5.61
10$4.29400$42.94
25$3.96400$99.10
100$3.60140$360.14
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
250$3.42856$857.14
500$3.32438$1,662.19
750$3.27221$2,454.16
1,250$3.21438$4,017.97
1,750$3.18061$5,566.07
2,500$3.14811$7,870.27
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.