VIPER222XSTR STMicroelectronics Power Supply (Small Outline Packages) In Stock
STMicroelectronics VIPER222XSTR is a current-mode PWM switching regulator operating from a 4.5 V to 30 V input range for compact offline and DC-DC power supply designs. It integrates a high-voltage power MOSFET and PWM controller in a single SSOP-10 package to minimize external component count. Ideal for low-power auxiliary supply rails in industrial and home appliance applications.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- VIPER222XSTR Datasheet PDF
- Category
- Power Supply
- Price
- From $0.4290(MOQ 100)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated high-voltage power MOSFET and PWM controller in one SSOP-10 package eliminating discrete switch components
- Current-mode control with pulse-width modulation ensuring cycle-by-cycle overcurrent protection and fast transient response
- Wide input voltage range of 4.5 V to 30 V supporting both DC-DC conversion and low-power offline auxiliary supplies
- Built-in soft-start and frequency jitter reducing EMI emissions and minimizing output voltage overshoot at startup
- Compact SSOP-10 footprint enabling high-density power stage layout in space-constrained appliance control boards
Applications
The VIPER222XSTR is used in home appliance control boards such as washing machine and air conditioner control panels where a compact 5 V or 12 V auxiliary supply is derived from a 24 V or 30 V bus with minimal external components. It serves industrial sensor transmitters and field instruments powered from 4-20 mA loops or 24 V supply rails where low standby power and a small PCB footprint are critical. The device is also integrated into LED driver power supplies and small adapter designs that require current-mode PWM control with built-in protection features to meet energy efficiency standards.
Specifications
| Factory Lead Time | 18Weeks |
| Date Of Intro | 2020-01-22 |
| YTEOL | 7 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 30V |
| Input Voltage-Min | 4.5V |
| Input Voltage-Nom | 9V |
| JESD-30 Code | R-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP10,.25,40 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max (Isup) | 1.3mA |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 33kHz |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 1mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the VIPER222XSTR support, and which power supply topologies is it designed for?
The VIPER222XSTR accepts input voltages from 4.5 V to 30 V, making it suitable for buck and flyback DC-DC converter topologies derived from 5 V, 12 V, or 24 V rails common in industrial equipment. The integrated high-voltage MOSFET and current-mode PWM controller allow a complete switcher to be built with fewer than 10 external passive components, reducing BOM cost significantly.
How does the current-mode PWM control in the VIPER222XSTR improve power supply reliability?
Current-mode control samples the switch current every PWM cycle, allowing the VIPER222XSTR to limit peak inductor current to a safe level on a cycle-by-cycle basis. This inherent overcurrent protection prevents transformer saturation and MOSFET overstress during load transients or short circuits, improving mean time between failures in 24 V industrial power supplies compared to voltage-mode controlled designs.
What are the thermal and package constraints of the VIPER222XSTR SSOP-10, and how does that affect output power?
The SSOP-10 package has a limited thermal dissipation capability, typically handling output powers up to approximately 1 W to 3 W depending on ambient temperature and PCB copper area used for heat spreading. At a 30 V input and 5 V output with 100 mA load, the VIPER222XSTR operates within its junction temperature limit of 150°C when mounted on a board with at least 1 cm2 of 35 µm copper ground plane.
When is the VIPER222XSTR a better choice than a discrete MOSFET plus PWM controller solution for an auxiliary power supply?
In low-power auxiliary supply rails below 3 W where PCB area is constrained to under 1 cm2, integrating the MOSFET and controller in the VIPER222XSTR SSOP-10 saves the footprint of a separate TO-252 MOSFET and a discrete gate driver IC. The single-chip solution also simplifies layout, as there is no need to route a high-frequency gate drive signal between separate ICs, reducing EMI on boards with sensitive 4-20 mA analog measurement circuits.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.5400 | $54.00 |
| 250+ | $0.5000 | $125.00 |
| 500+ | $0.4800 | $240.00 |
| 1000+ | $0.4750 | $475.00 |
| 2500+ | $0.4310 | $1077.50 |
| 5000+ | $0.4290 | $2145.00 |
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