Power Integrations LinkSwitch-XT2SR | Power Integrations
LinkSwitch-XT2SR series from Power Integrations
Power Integrations LinkSwitch-XT2SR Series Overview
High-efficiency offline switcher with integrated synchronous rectification controller.
The LinkSwitch-XT2SR from Power Integrations is a High-efficiency offline switcher with integrated synchronous rectification controller. This series includes 8 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
Designed for offline power conversion, the LinkSwitch-XT2SR integrates key power components to minimize external component count, reduce board space, and simplify the design process. these devices help engineers meet increasingly stringent energy-efficiency standards while reducing time to market.
Octatronics stocks LinkSwitch-XT2SR variants in multiple package options. Request a quote for volume pricing, check real-time availability, or contact our engineering team for application support and alternative part recommendations.
Key Features
- Highest IntegrationPrimary, secondary, and feedback circuits integrated on a single IC, reducing external component count by up to 50%.
- Up to 12W Output PowerSupports output power up to Up to 12W with excellent load and line regulation.
- Comprehensive Protection SuiteIntegrated over-voltage, over-current, over-temperature, and short-circuit protection eliminates external protection circuitry.
- Ultra-Low No-Load PowerAdvanced burst-mode operation achieves <30mW no-load power consumption, meeting the strictest standby regulations.
- Simplified Design ProcessReference designs, PI Expert design software, and application notes accelerate time-to-production.
Target Applications
- High-efficiency chargers
- USB adapters
- Industrial sensors
- Lighting controls
Compare LinkSwitch-XT2SR Variants
Side-by-side comparison of 8 product variants from Power Integrations
| Parameter | LNK3792D-H004 | LNK3792D-H003 | LNK3773D-H004 | LNK3773D-H003 | LNK3772D-H004 | LNK3772D-H003 | LNK3771D-H004 | LNK3771D-H003 |
|---|---|---|---|---|---|---|---|---|
| Package / Case | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B |
| Max Operating Temp | 150 °C | 150 °C | 150 °C | 150 °C | 150 °C | 150 °C | 150 °C | 150 °C |
| Min Operating Temp | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C | -40 °C |
| Auto Restart and Overvoltage Response | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart |
| Auto Restart Threshold | OL | OL | OL | OL | OL | OL | OL | OL |
| Breakdown Voltage | 900 V | 900 V | 725 V | 725 V | 725 V | 725 V | 725 V | 725 V |
| Control Features | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response, On/Off Control |
| Internal Switch | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Max Input Voltage | 484 V | 484 V | 265 V | 265 V | 265 V | 265 V | 265 V | 265 V |
| Min Input Voltage | 85 V | 85 V | 85 V | 85 V | 85 V | 85 V | 85 V | 85 V |
| MSL Rating | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Output Power Max Open Frame 230v | 12.0 W | 12.0 W | 15.0 W | 15.0 W | 12.0 W | 12.0 W | 7.0 W | 7.0 W |
| Output Power Max Open Frame Univ | 10.0 W | 10.0 W | 12.0 W | 12.0 W | 10.0 W | 10.0 W | 6.0 W | 6.0 W |
| Over Temperature Response | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic |
| Package | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B | SO-16B |
| Product Family | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR | LinkSwitch-XT2SR |
| Product Type | IC | IC | IC | IC | IC | IC | IC | IC |
| Protection Features | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature | Open SR FET Detection, Output Overvoltage, Overtemperature |
| Switching Frequency Avg 230 Vac | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz |
| Switching Frequency Max | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz | 66 kHz |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback |
| Voltage Output Max | - | 5 V | - | 5 V | - | 5 V | - | 5 V |
| Voltage Output Min | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V | 5 V |
| Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote |
LinkSwitch-XT2SR Series Applications
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Automotive ElectronicsECU components, ADAS sensors, power management ICs, and automotive-grade semiconductors for vehicle systems.
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Vehicle NetworkingCAN, LIN, FlexRay, and Automotive Ethernet transceivers and controllers for in-vehicle communication.
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Telematics & Connected VehicleCellular modems, GNSS modules, and V2X communication ICs for connected vehicle and telematics platforms.
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Energy & PowerPower semiconductors, battery management ICs, solar inverter components, and EV charging modules.
Base Numbers
| Base Number | Description | Variants | Status | Action |
|---|---|---|---|---|
| LNK3771D | LNK3771D variants from Power Integrations | 2 MPNs | Active | View Details |
| LNK3772D | LNK3772D variants from Power Integrations | 2 MPNs | Active | View Details |
| LNK3773D | LNK3773D variants from Power Integrations | 2 MPNs | Active | View Details |
| LNK3792D | LNK3792D variants from Power Integrations | 2 MPNs | Active | View Details |
Technical Specifications
Compare key LinkSwitch-XT2SR specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Power Specifications
Output Power
Up to 12W
Input Voltage Range
85–265 VAC (universal input)
Peak Efficiency
>90%
No-Load Power
<30 mW
Safety & Compliance
Safety Certifications
UL, IEC 62368-1
EMI Standard
EN 55032 Class B
Energy Star
CoC Tier 2 / DoE Level VI compliant
Frequently Asked Questions
Common technical questions about the LinkSwitch-XT2SR series.
The LinkSwitch-XT2SR is a Power Integrations High-efficiency offline switcher with integrated synchronous rectification controller. The series includes 8 variants optimized for different application requirements.
The LinkSwitch-XT2SR series currently includes 8 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
The LinkSwitch-XT2SR series is used in High-efficiency chargers, USB adapters, Industrial sensors, and Lighting controls. Contact our applications team for design-in support and recommendation.
Octatronics is an authorized distributor of Power Integrations products including the LinkSwitch-XT2SR series. We provide competitive pricing, fast delivery, and full traceability for all components. Request a quote or contact us for availability and lead times.
Yes, Octatronics supports both prototype and production quantities for the LinkSwitch-XT2SR series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.