- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for L9949TR
- Part Number L9949TR
- Manufacturer STMicroelectronics
- Pin Count 21
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - PowerSO-20_2022
- Released Date Aug 29, 2022
- Last Modified Date Jan 8, 2026 2:31 PM UTC
- Pinout / Pin List Click Here (Member Only)
L9949TR Details
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Manufacturer Part Number:
L9949TR
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Brand Name:
STMicroelectronics
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Rohs Code:
Yes
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Part Life Cycle Code:
Not Recommended
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Part Package Code:
SOIC
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Package Description:
POWER, SO-20
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Pin Count:
20
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Country Of Origin:
Malaysia
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.60
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Factory Lead Time:
21 Weeks
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Date Of Intro:
1980-01-04
L9949TR Frequently Asked Questions (FAQs)
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STMicroelectronics provides a recommended PCB layout in the application note AN4996, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and thermal dissipation.
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The selection of the inductor depends on the specific application requirements, such as the input voltage, output voltage, and switching frequency. STMicroelectronics provides a list of recommended inductors in the datasheet, and also offers an inductor selection tool on their website.
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The maximum junction temperature of the L9949TR is 150°C, as specified in the datasheet. However, it's recommended to keep the junction temperature below 125°C for optimal reliability and performance.
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Yes, the L9949TR is designed to operate in high-temperature environments, with a maximum operating temperature of 125°C. However, the device's performance and reliability may be affected at high temperatures, and additional thermal management may be required.
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STMicroelectronics provides a troubleshooting guide in the application note AN4996, which includes common issues, symptoms, and solutions. Additionally, engineers can use oscilloscopes and other diagnostic tools to identify and fix issues with the device.
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L9949TR Overview
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About STMicroelectronics
STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components.
STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut