LT1243IS8 is Obsolete and no longer manufactured.
Available Substitutes:

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Analog Devices Inc.
In Stock: 0
Unit Price: $71.31000
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Microchip Technology
In Stock: 0
Unit Price: $19.74000
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Microchip Technology
In Stock: 0
Unit Price: $15.01164
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Microchip Technology
In Stock: 0
Unit Price: $10.44000
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Microchip Technology
In Stock: 0
Unit Price: $10.44000
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Microchip Technology
In Stock: 0
Unit Price: $12.32000
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Microchip Technology
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Unit Price: $20.64000
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Microchip Technology
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Unit Price: $13.30000
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Microchip Technology
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Unit Price: $24.07000
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Texas Instruments
In Stock: 0
Unit Price: $65.02000
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Buck Regulator Positive, Isolation Capable Output Step-Down DC-DC Controller IC 8-SO
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

LT1243IS8

DigiKey Part Number
LT1243IS8-ND
Manufacturer
Manufacturer Product Number
LT1243IS8
Description
IC REG CTRLR BUCK 8SOIC
Customer Reference
Detailed Description
Buck Regulator Positive, Isolation Capable Output Step-Down DC-DC Controller IC 8-SO
Datasheet
 Datasheet
EDA/CAD Models
LT1243IS8 Models
Product Attributes
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Category
Frequency - Switching
500kHz
Manufacturer
Analog Devices Inc.
Duty Cycle (Max)
96%
Packaging
Tube
Synchronous Rectifier
No
Part Status
Obsolete
Clock Sync
No
Output Type
Transistor Driver
Control Features
Frequency Control
Function
Step-Down
Operating Temperature
-40°C ~ 100°C (TA)
Output Configuration
Positive, Isolation Capable
Mounting Type
Surface Mount
Topology
Buck
Package / Case
8-SOIC (0.154", 3.90mm Width)
Number of Outputs
1
Supplier Device Package
8-SO
Output Phases
1
Base Product Number
Voltage - Supply (Vcc/Vdd)
8.2V ~ 25V
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (10)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
LT1243IS8#PBFAnalog Devices Inc.0LT1243IS8#PBF-ND$71.31000Direct
MIC38C43AYMMicrochip Technology0576-1773-5-ND$19.74000Similar
MIC38C43AYM-TRMicrochip Technology0MIC38C43AYM-TR-ND$15.01164Similar
MIC38C43YMMicrochip Technology0576-1168-ND$10.44000Similar
MIC38C43YM-TRMicrochip Technology0MIC38C43YM-CT-ND$10.44000Similar
Obsolete
This product is no longer manufactured. View Substitutes or Alternative Package Types