Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 8-SOIC (0.154", 3.90mm Width)
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ST1S40IDR

DigiKey Part Number
497-12968-2-ND - Tape & Reel (TR)
497-12968-1-ND - Cut Tape (CT)
497-12968-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
ST1S40IDR
Description
IC REG BUCK ADJ 3A 8SOIC
Manufacturer Standard Lead Time
24 Weeks
Customer Reference
Detailed Description
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 8-SOIC (0.154", 3.90mm Width)
Datasheet
 Datasheet
EDA/CAD Models
ST1S40IDR Models
Product Attributes
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Category
Voltage - Output (Min/Fixed)
Mfr
Voltage - Output (Max)
18V
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Current - Output
Part Status
Active
Frequency - Switching
850kHz
Function
Step-Down
Synchronous Rectifier
Yes
Output Configuration
Positive
Operating Temperature
-40°C ~ 150°C (TJ)
Topology
Mounting Type
Surface Mount
Output Type
Package / Case
Number of Outputs
1
Supplier Device Package
8-SOIC
Voltage - Input (Min)
4V
Base Product Number
Voltage - Input (Max)
18V
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
In-Stock: 0
890 expected in stock on 28-Sep-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.82000$1.82
10$1.33500$13.35
25$1.21480$30.37
100$1.08240$108.24
250$1.01932$254.83
500$0.98126$490.63
1,000$0.94993$949.93
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$0.91686$2,292.15
5,000$0.89694$4,484.70
7,500$0.88696$6,652.20
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