LM340SX-12/NOPB is out of stock and can be placed on backorder.
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Linear Voltage Regulator IC Negative Adjustable 1 Output 150mA TO-263 (DDPAK-3)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Linear Voltage Regulator IC Negative Adjustable 1 Output 150mA TO-263 (DDPAK-3)
TO-263-4
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LM340SX-12/NOPB

DigiKey Part Number
LM340SX-12/NOPBTR-ND - Tape & Reel (TR)
LM340SX-12/NOPBCT-ND - Cut Tape (CT)
LM340SX-12/NOPBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
LM340SX-12/NOPB
Description
IC REG LINEAR 12V 1.5A TO263
Manufacturer Standard Lead Time
6 Weeks
Customer Reference
Detailed Description
Linear Voltage Regulator IC Negative Adjustable 1 Output 150mA TO-263 (DDPAK-3)
Datasheet
 Datasheet
EDA/CAD Models
LM340SX-12/NOPB Models
Product Attributes
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Category
Current - Quiescent (Iq)
8 mA
Mfr
PSRR
15dB (1kHz)
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Control Features
Adj/EN
Part Status
Active
Protection Features
Antisaturation, Over Current, Over Temperature
Output Configuration
Operating Temperature
-20°C ~ 100°C
Output Type
Grade
Automotive
Number of Regulators
1
Qualification
AEC-Q100
Voltage - Input (Max)
150V
Mounting Type
Surface Mount
Voltage - Output (Min/Fixed)
15V
Package / Case
TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
Voltage - Output (Max)
Supplier Device Package
TO-263 (DDPAK-3)
Voltage Dropout (Max)
0.114V @ 20mA
Base Product Number
Current - Output
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (4)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
UA7812CKTTRTexas Instruments0296-20798-2-ND$1.08000Similar
MIC2937A-12WUMicrochip Technology0576-2234-ND$2.29000Similar
MIC2937A-12WU-TRMicrochip Technology0MIC2937A-12WU-TR-ND$3.02000Similar
MC7805BD2TR4Gonsemi10,439MC7805BD2TR4GOSTR-ND$0.74000Direct
In-Stock: 0
500 estimated in stock on 07-Dec-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.81000$1.81
10$1.33100$13.31
25$1.21080$30.27
100$1.07890$107.89
250$1.01592$253.98
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
500$0.97796$488.98
1,000$0.94672$946.72
1,500$0.93108$1,396.62
2,500$0.91374$2,284.35
3,500$0.90362$3,162.67
5,000$0.89387$4,469.35
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