Part Details for VIPER122LSTR by STMicroelectronics
Results Overview of VIPER122LSTR by STMicroelectronics
- Distributor Offerings: (9 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (0 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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VIPER122LSTR Information
VIPER122LSTR by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Price & Stock for VIPER122LSTR
| Part # | Distributor | Description | Stock | Price | Buy | |
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DISTI #
47AK7135
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Newark | Ac/Dc Conv, Buck/Buck-Boost/Flyback, |Stmicroelectronics VIPER122LSTR RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Cut Tape | 1166 |
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$0.6390 / $1.1600 | Buy Now |
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DISTI #
47AK7135RL
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Newark | Ac/Dc Conv, Buck/Buck-Boost/Flyback, |Stmicroelectronics VIPER122LSTR RoHS: Compliant Min Qty: 100 Package Multiple: 1 Date Code: 0 Container: Tape & Reel | 1166 |
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$0.6390 / $0.7380 | Buy Now |
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DISTI #
511-VIPER122LSTR
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Mouser Electronics | AC/DC Converters High voltage converter RoHS: Compliant | 852 |
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$0.5080 / $1.0900 | Buy Now |
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DISTI #
93265718
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Verical | AC to DC Switching Converter Flyback 9V 66kHz T/R 10-Pin SSOP RoHS: Compliant Min Qty: 4 Package Multiple: 1 | Americas - 9 |
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$0.4017 / $0.9000 | Buy Now |
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STMicroelectronics | High voltage converter COO: Italy Min Qty: 1 | 852 |
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$0.5600 / $1.0900 | Buy Now |
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DISTI #
VIPER122LSTR
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Avnet Americas | AC / DC Converter,?Buck, Buck-Boost, Flyback, 85 to 265 VAC, 6 W, SSOP-10, -40 ?C to 150 ?C - Tape and Reel (Alt: VIPER122LSTR) COO: China RoHS: Not Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 53 Weeks, 1 Days Container: Tape & Reel | 0 |
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$0.4258 / $0.4528 | Buy Now |
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Ameya Holding Limited | 2032 |
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RFQ | ||
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Chip Stock | VIPER122 Series 23.5 V 60 kHz SMT Off-Line High Voltage Converter - SSOP-10 | 81350 |
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RFQ | |
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Win Source Electronics | IC OFFLINE SW MULT TOP 10SSOP / Converter Offline Buck, Buck-Boost, Flyback Topology 60kHz 10-SSOP | 68850 |
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$0.7370 / $1.1055 | Buy Now |
US Tariff Estimator: VIPER122LSTR by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
VIPER122LSTR CAD Models
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VIPER122LSTR Part Data Attributes
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VIPER122LSTR
STMicroelectronics
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Datasheet
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VIPER122LSTR
STMicroelectronics
Switching Controller, Current-mode, 0.5A, 66kHz Switching Freq-Max, PDSO10
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Package Description | Ssop-10 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Factory Lead Time | 18 Weeks | |
| Date Of Intro | 2019-06-10 | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 23.5 V | |
| Input Voltage-Min | 11.5 V | |
| Input Voltage-Nom | 14 V | |
| JESD-30 Code | R-PDSO-G10 | |
| JESD-609 Code | e3 | |
| Length | 4.9 Mm | |
| Moisture Sensitivity Level | 3 | |
| Number of Functions | 1 | |
| Number of Terminals | 10 | |
| Operating Temperature-Max | 150 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 0.5 A | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SSOP | |
| Package Equivalence Code | SSOP10,.25,40 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline, Shrink Pitch | |
| Peak Reflow Temperature (Cel) | 260 | |
| Seated Height-Max | 1.75 Mm | |
| Supply Current-Max (Isup) | 1.6 Ma | |
| Surface Mount | Yes | |
| Switcher Configuration | Buck-Boost | |
| Switching Frequency-Max | 66 Khz | |
| Terminal Finish | Matte Tin (Sn) - Annealed | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 1 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3.9 Mm |
VIPER122LSTR Frequently Asked Questions (FAQ)
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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.