LM2596SX-3.3 is available for purchase but is not normally stocked.
Available Substitutes:

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Microchip Technology
In Stock: 0
Unit Price: $10.85080
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Microchip Technology
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Unit Price: $14.28000
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onsemi
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Unit Price: $17.62000
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Microchip Technology
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Microchip Technology
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Datasheet
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 3A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 3A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA

LM2596SX-3.3

DigiKey Part Number
LM2596SX-3.3TR-ND - Tape & Reel (TR)
LM2596SX-3.3CT-ND - Cut Tape (CT)
LM2596SX-3.3DKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM2596SX-3.3
Description
IC REG BUCK 3.3V 3A TO263
Customer Reference
Detailed Description
Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 3A TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
Datasheet
 Datasheet
EDA/CAD Models
LM2596SX-3.3 Models
Product Attributes
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Category
Voltage - Input (Max)
40V
Mfr
Voltage - Output (Min/Fixed)
Series
Current - Output
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Frequency - Switching
150kHz
Part Status
Not For New Designs
Synchronous Rectifier
No
Function
Step-Down
Operating Temperature
-40°C ~ 125°C (TJ)
Output Configuration
Positive
Mounting Type
Surface Mount
Topology
Package / Case
Output Type
Supplier Device Package
TO-263 (DDPAK-5)
Number of Outputs
1
Base Product Number
Voltage - Input (Min)
4.5V
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM2575-3.3WUMicrochip Technology0LM2575-3.3WU-ND$10.85080Similar
LM2575-3.3WU-TRMicrochip Technology0150-LM2575-3.3WU-TRCT-ND$14.28000Similar
LM2575D2T-3.3R4Gonsemi0LM2575D2T-3.3R4GOSCT-ND$17.62000Similar
MIC4576-3.3WUMicrochip Technology0576-1532-5-ND$36.39000Similar
MIC4576-3.3WU-TRMicrochip Technology0576-1551-1-ND$36.39000Similar
Available To Order
Not recommended for new design, minimums may apply View Substitutes or Alternative Package Types
All prices are in HKD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$43.81000$43.81
* All Digi-Reel orders will add a $55.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
500$25.87730$12,938.65
1,000$25.20438$25,204.38
1,500$24.86727$37,300.90
2,500$24.49378$61,234.45
Manufacturers Standard Package