LP2981AIM5-3.3/NOPB is out of stock and can be placed on backorder.
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Texas Instruments
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Unit Price: $0.71000
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Microchip Technology
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Unit Price: $0.53000
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STMicroelectronics
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Unit Price: $0.63000
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STMicroelectronics
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Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LP2981AIM5-3.3/NOPB

DigiKey Part Number
LP2981AIM5-3.3/NOPBTR-ND - Tape & Reel (TR)
LP2981AIM5-3.3/NOPBCT-ND - Cut Tape (CT)
LP2981AIM5-3.3/NOPBDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
LP2981AIM5-3.3/NOPB
Description
IC REG LINEAR 3.3V 100MA SOT23-5
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
Linear Voltage Regulator IC Positive Fixed 1 Output 100mA SOT-23-5
Datasheet
 Datasheet
EDA/CAD Models
LP2981AIM5-3.3/NOPB Models
Product Attributes
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Category
Current - Quiescent (Iq)
95 µA
Mfr
Current - Supply (Max)
1.7 mA
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
PSRR
63dB (1kHz)
Part Status
Active
Control Features
Enable
Output Configuration
Protection Features
Over Current, Over Temperature, Short Circuit
Output Type
Operating Temperature
-40°C ~ 125°C
Number of Regulators
1
Mounting Type
Surface Mount
Voltage - Input (Max)
16V
Package / Case
SC-74A, SOT-753
Voltage - Output (Min/Fixed)
3.3V
Supplier Device Package
SOT-23-5
Voltage Dropout (Max)
0.37V @ 100mA
Base Product Number
Current - Output
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (8)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LP2981A-33DBVRTexas Instruments0296-17361-2-ND$0.71000Direct
MIC5225-3.3YM5-TRMicrochip Technology0576-2980-2-ND$0.53000Similar
LD2980CM33TRSTMicroelectronics1,067497-3479-2-ND$0.63000Similar
LD2980ABM33TRSTMicroelectronics0497-1517-2-ND$0.70000Similar
LD2981ABM33TRSTMicroelectronics0497-1521-2-ND$0.54000Similar
In-Stock: 0
3,000 estimated in stock on 18-Dec-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.06000$1.06
10$0.76700$7.67
25$0.69240$17.31
100$0.61080$61.08
250$0.57184$142.96
500$0.54834$274.17
1,000$0.52902$529.02
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$0.50515$1,515.45
6,000$0.49347$2,960.82
9,000$0.48762$4,388.58
15,000$0.48114$7,217.10