- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for LM397MFX
- Part Number LM397MFX
- Manufacturer Texas Instruments
- Pin Count 5
- Part Category Integrated Circuit
- Package Category SOT23 (5-Pin)
- Footprint Name SOT23 (5-Pin) - DBV0005A
- Released Date Oct 9, 2021
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
LM397MFX Details
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Manufacturer Part Number:
LM397MFX
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Pbfree Code:
No
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Part Life Cycle Code:
Obsolete
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Part Package Code:
SOT-23
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Package Description:
SOT-23, 5 PIN
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Pin Count:
5
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.60
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Manufacturer:
Texas Instruments
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YTEOL:
0
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Amplifier Type:
COMPARATOR
LM397MFX Frequently Asked Questions (FAQs)
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Texas Instruments provides a recommended PCB layout in the application note SLVAE04, which includes guidelines for component placement, trace routing, and thermal management to ensure optimal performance and minimize noise.
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To ensure stability, follow the guidelines in the datasheet for selecting the output capacitor and resistor values. Additionally, ensure that the input and output capacitors are placed close to the device, and use a low-ESR capacitor for the output. Also, consider adding a small resistor in series with the output capacitor to dampen oscillations.
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Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and prevent damage to the device.
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Use the equations provided in the datasheet to calculate the power dissipation based on the input voltage, output voltage, and output current. Then, use the thermal resistance values provided in the datasheet to estimate the junction temperature. Consider using thermal simulation tools or thermal analysis software to get a more accurate estimate.
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The LM397MFX is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. Consider using a heat sink or thermal management techniques to keep the junction temperature below 100°C for optimal performance and reliability.
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LM397MFX Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.