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Linear Voltage Regulator IC Positive Adjustable 1 Output 1.5A SOT-223-4
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Linear Voltage Regulator IC Positive Adjustable 1 Output 1.5A SOT-223-4
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LM317EMP/NOPB

DigiKey Part Number
LM317EMP/NOPBTR-ND - Tape & Reel (TR)
LM317EMP/NOPBCT-ND - Cut Tape (CT)
LM317EMP/NOPBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LM317EMP/NOPB
Description
IC REG LIN POS ADJ 1.5A SOT223-4
Manufacturer Standard Lead Time
16 Weeks
Customer Reference
Detailed Description
Linear Voltage Regulator IC Positive Adjustable 1 Output 1.5A SOT-223-4
Datasheet
 Datasheet
EDA/CAD Models
LM317EMP/NOPB Models
Product Attributes
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Category
Current - Output
Mfr
Current - Quiescent (Iq)
10 mA
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
PSRR
80dB ~ 65dB (120Hz)
Part Status
Active
Protection Features
Over Current, Over Temperature, Short Circuit
Output Configuration
Operating Temperature
0°C ~ 125°C
Output Type
Mounting Type
Surface Mount
Number of Regulators
1
Package / Case
TO-261-4, TO-261AA
Voltage - Input (Max)
37V
Supplier Device Package
SOT-223-4
Voltage - Output (Min/Fixed)
1.25V
Base Product Number
Voltage - Output (Max)
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (17)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LM317AEMPX/NOPBTexas Instruments0LM317AEMPX/NOPBCT-ND$2.74000Similar
LM317DCYTexas Instruments3,357296-23224-5-ND$1.31000Similar
LM317DCYG3Texas Instruments1,105296-36104-5-ND$1.31000Similar
LM317DCYRTexas Instruments30,473296-12602-1-ND$0.88000Similar
LM317MDCYTexas Instruments3,466296-26095-5-ND$0.99000Similar
In-Stock: 0
1,000 expected in stock on 22-Oct-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$2.38000$2.38
10$1.76600$17.66
25$1.61200$40.30
100$1.44270$144.27
250$1.36196$340.49
500$1.32344$661.72
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
1,000$1.27320$1,273.20
2,000$1.24022$2,480.44
3,000$1.22371$3,671.13
5,000$1.20540$6,027.00
7,000$1.19471$8,362.97