LT1121AIS8-3.3 is Obsolete and no longer manufactured.
Available Substitutes:

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Analog Devices Inc.
In Stock: 58
Unit Price: kr.59.79000
Datasheet

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STMicroelectronics
In Stock: 9.031
Unit Price: kr.4.12000
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Microchip Technology
In Stock: 475
Unit Price: kr.8.75000
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Microchip Technology
In Stock: 3.097
Unit Price: kr.8.75000
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Microchip Technology
In Stock: 58
Unit Price: kr.8.37000
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Microchip Technology
In Stock: 5.073
Unit Price: kr.8.37000
Datasheet
Linear Voltage Regulator IC 1 Output 150mA 8-SO
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Linear Voltage Regulator IC 1 Output 150mA 8-SO
What is a Voltage Regulator Another Teaching Moment | Digi-Key Electronics

LT1121AIS8-3.3

DigiKey Part Number
LT1121AIS8-3.3-ND
Manufacturer
Manufacturer Product Number
LT1121AIS8-3.3
Description
IC REG LINEAR 150MA 8-SO
Customer Reference
Detailed Description
Linear Voltage Regulator IC 1 Output 150mA 8-SO
Datasheet
 Datasheet
EDA/CAD Models
LT1121AIS8-3.3 Models
Product Attributes
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Category
Operating Temperature
-40°C ~ 125°C
Mfr
Mounting Type
Surface Mount
Packaging
Tube
Package / Case
8-SOIC (0.154", 3.90mm Width)
Part Status
Obsolete
Supplier Device Package
8-SO
Number of Regulators
1
Base Product Number
Current - Output
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (6)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LT1121AIS8-3.3#PBFAnalog Devices Inc.58LT1121AIS8-3.3#PBF-NDkr.59.79000Direct
LD1117D33CTRSTMicroelectronics9.031497-1230-1-NDkr.4.12000Similar
MIC5200-3.3YMMicrochip Technology475576-1246-NDkr.8.75000Similar
MIC5200-3.3YM-TRMicrochip Technology3.097MIC5200-3.3YM-CT-NDkr.8.75000Similar
MIC5201-3.3YMMicrochip Technology58MIC5201-3.3YM-NDkr.8.37000Similar
Obsolete
This product is no longer manufactured. View Substitutes or Alternative Package Types