| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| VIPER22ASTR-E | STMicroelectronics | $0.5781 | Switching Controller, Current-mode, 0.84A, 66kHz Switching Freq-Max, PDSO8 | VIPER22AS vs VIPER22ASTR-E |
| VIPER22AS13TR | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.84A, 66kHz Switching Freq-Max, PDSO8 | VIPER22AS vs VIPER22AS13TR |
Part Details for VIPER22AS by STMicroelectronics
Results Overview of VIPER22AS by STMicroelectronics
- Distributor Offerings: (4 listings)
- Number of FFF Equivalents: (2 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (10 options)
- CAD Models: (Request Part)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
Applications
Consumer Electronics
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VIPER22AS Information
VIPER22AS 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 VIPER22AS
| Part # | Distributor | Description | Stock | Price | Buy | |
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Chip 1 Exchange | INSTOCK | 1068 |
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RFQ | |
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Chip Stock | Switching Regulator, Current-mode, 0.84A, 66kHz Switching Freq-Max, PDSO8 | 358388 |
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RFQ | |
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Vyrian | Switching Regulator, Current-mode, 0.84A, 66kHz Switching Freq-Max, PDSO8 | 7839 |
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RFQ | |
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Win Source Electronics | IC OFFLINE SWITCH FLYBACK 8SOIC | 87500 |
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$0.1957 / $0.2935 | Buy Now |
US Tariff Estimator: VIPER22AS 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.
VIPER22AS Part Data Attributes
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VIPER22AS
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
VIPER22AS
STMicroelectronics
Switching Regulator, Current-mode, 0.84A, 66kHz Switching Freq-Max, PDSO8
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| Part Life Cycle Code | Obsolete | |
| Part Package Code | SOIC | |
| Package Description | So-8 | |
| Pin Count | 8 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Analog IC - Other Type | Switching Regulator | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 38 V | |
| Input Voltage-Min | 9 V | |
| Input Voltage-Nom | 18 V | |
| JESD-30 Code | R-PDSO-G8 | |
| JESD-609 Code | e0 | |
| Length | 4.9 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 8 | |
| Output Current-Max | 0.84 A | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | SOP | |
| Package Equivalence Code | SOP8,.25 | |
| Package Shape | Rectangular | |
| Package Style | Small Outline | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 1.75 Mm | |
| Surface Mount | Yes | |
| Switcher Configuration | Single | |
| Switching Frequency-Max | 66 Khz | |
| Terminal Finish | Tin Lead | |
| Terminal Form | Gull Wing | |
| Terminal Pitch | 1.27 Mm | |
| Terminal Position | Dual | |
| Width | 3.9 Mm |
Alternate Parts for VIPER22AS
This table gives cross-reference parts and alternative options found for VIPER22AS. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of VIPER22AS, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
VIPER22AS Frequently Asked Questions (FAQ)
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STMicroelectronics provides a recommended PCB layout in the application note AN4571, which includes guidelines for component placement, thermal management, and routing to minimize electromagnetic interference (EMI) and ensure reliable operation.
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The transformer selection depends on the input voltage, output voltage, and power rating of your design. STMicroelectronics provides a transformer selection guide in the datasheet, and you can also use online tools such as the STMicroelectronics Transformer Selector to find a suitable transformer.
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The VIPER22AS has a high power density, so thermal management is crucial. Ensure good airflow around the device, use a heat sink if necessary, and follow the thermal design guidelines in the datasheet to prevent overheating and ensure reliable operation.
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The VIPER22AS has a built-in OVP feature that can be enabled by connecting the OVP pin to a voltage divider network. The OVP threshold can be set by selecting the appropriate resistor values, and the datasheet provides a calculation formula to determine the required resistor values.
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The VIPER22AS is a switching converter, and EMI can be a concern. To minimize EMI, follow the layout guidelines in the datasheet, use a shielded transformer, and add EMI filters such as common-mode chokes and capacitors to the input and output lines.