- Datasheet Download Datasheet
- Stock & Prices $ Price & Stock for VIPER122LSTR
- Part Number VIPER122LSTR
- Manufacturer STMicroelectronics
- Pin Count 10
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - SSOP10
- Released Date Mar 31, 2020
- Last Modified Date Jan 8, 2026 2:31 PM UTC
- Pinout / Pin List Click Here (Member Only)
VIPER122LSTR Details
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Manufacturer Part Number:
VIPER122LSTR
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Brand Name:
STMicroelectronics
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Rohs Code:
Yes
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Part Life Cycle Code:
Active
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Package Description:
SSOP-10
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Country Of Origin:
Mainland China
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ECCN Code:
EAR99
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HTS Code:
8542.39.00.60
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Factory Lead Time:
18 Weeks
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Date Of Intro:
2019-06-10
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Manufacturer:
STMicroelectronics
VIPER122LSTR Frequently Asked Questions (FAQs)
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A good PCB layout for VIPER122LSTR involves keeping the high-frequency switching nodes (e.g., drain-source voltage) as short as possible, using a solid ground plane, and placing the input and output capacitors close to the IC. A 4-layer PCB with a dedicated power plane and a solid ground plane is recommended.
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To ensure reliable start-up, ensure that the input voltage rises slowly (e.g., using a soft-start circuit) and that the input capacitor is properly sized to handle the inrush current. Also, ensure that the output voltage is properly regulated before enabling the load.
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The VIPER122LSTR is rated for operation from -40°C to 150°C (junction temperature). However, the maximum allowed ambient temperature range depends on the specific application and cooling conditions. Typically, the ambient temperature range is -40°C to 85°C.
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Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current capability. For output capacitors, choose ones with low ESR and high capacitance. The capacitor values and types should be selected based on the specific application requirements and the recommended values in the datasheet.
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Key considerations for EMI filtering include using a common-mode choke, adding a differential-mode filter, and ensuring that the PCB layout is optimized for EMI reduction. Additionally, consider using shielding and filtering components (e.g., ferrite beads) to reduce radiated emissions.
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VIPER122LSTR 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
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