Power Integrations LinkSwitch-3 | Power Integrations
LinkSwitch-3 series from Power Integrations
Power Integrations LinkSwitch-3 Series Overview
LinkSwitch-3 integrated power conversion IC for AC-DC and DC-DC applications.
The LinkSwitch-3 from Power Integrations is a LinkSwitch-3 integrated power conversion IC for AC-DC and DC-DC applications. This series includes 24 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
Designed for offline power conversion, the LinkSwitch-3 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-3 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%.
- Scalable Output PowerSupports output power across a wide range 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
- Consumer chargers and adapters
- Industrial power supplies
- LED lighting drivers
- Home appliances
- IoT and smart home devices
Compare LinkSwitch-3 Variants
Side-by-side comparison of 10 product variants from Power Integrations
| Parameter | LNK6406D-TL | LNK364PN | LNK364GN-TL | LNK364DN-TL | LNK364DG-TL | LNK363DN-TL | LNK353GN-TL | LNK306PN | LNK306GN-TL | LNK306DN-TL |
|---|---|---|---|---|---|---|---|---|---|---|
| Package / Case | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-DIP (0.300", 7.62mm), 7 Leads | 8-SMD (7 Leads), Gull Wing | SOIC | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SOIC (0.154", 3.90mm Width), 7 Leads | 8-SMD (7 Leads), Gull Wing | 8-DIP (0.300", 7.62mm), 7 Leads | 8-SMD (7 Leads), Gull Wing | 8-SOIC (0.154", 3.90mm Width), 7 Leads |
| Operating Temperature | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) | -40°C ~ 150°C (TJ) |
| Duty Cycle | 55% | 60% | 60% | 60% | 60% | 60% | 63% | 69% | 69% | 69% |
| Duty Cycle Max | - | - | 60 % | 60 % | - | 60 % | - | 72 % | 72 % | 72 % |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| Input Supply Voltage Max | - | - | 265 VAC | 265 VAC | - | 265 VAC | - | 265 VAC | 265 VAC | 265 VAC |
| Input Supply Voltage Min | - | - | 85 VAC | 85 VAC | - | 85 VAC | - | 85 VAC | 85 VAC | 85 VAC |
| Internal Switch S | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Lifecycle Status | Active | Active | Active | Active | Active | Active | Not For New Designs | Active | Active | Active |
| Output Isolation | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Isolated | Non-Isolated | Non-Isolated | Non-Isolated |
| Output Voltage | - | - | 5.8 V | 6 V | - | - | - | 12 V | 12 V | 12 V |
| Package | 8-SOIC (0.154", 3.90mm Width), 7 Leads | - | SMD-8 | SO-8C | 8-SOIC (0.154", 3.90mm Width), 7 Leads | SOIC-8 | 8-SMD(7Leads),GullWing | DIP-8 | SMD-8 | SO-8C |
| Power Watts | 6.1 W | 9 W | 9 W | 9 W | 9 W | 7.5 W | 4 W | - | - | - |
| Series | LNK64 | - | LNK36 | LNK36 | LNK36 | LNK36 | LinkSwitch®-HF | LNK30 | LNK30 | LNK30 |
| Supplier Device Package | SO-8C | 8-PDIP-B | SMD-8B | SO-8C | SO-8C | SO-8C | SMD-8B | 8-PDIP-B | SMD-8B | SO-8C |
| Switching Frequency | Up to 85kHz | 132kHz | 132kHz | 132kHz | 132kHz | 132kHz | 200kHz | 66kHz | 66kHz | 66kHz |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Buck, Buck-Boost, Flyback | Buck, Buck-Boost, Flyback | Buck, Buck-Boost, Flyback |
| Tradename | LinkSwitch-3 | - | LinkSwitch-XT | LinkSwitch-XT | LinkSwitch-XT | LinkSwitch-XT | - | LinkSwitch-TN | LinkSwitch-TN | LinkSwitch-TN |
| Unit Weight | - | - | 0.047965 oz | 0.025230 oz | 0.344627 oz | 0.017870 oz | - | 0.080001 oz | 0.046895 oz | 0.008466 oz |
| Voltage Breakdown | 725V | 700V | 700V | 700V | 700V | 700V | 700V | 700V | 700V | 700V |
| Datasheet | - | - | - | - | - | |||||
| Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote | Request Quote |
Selection Guide
Package
8-SOIC (0.154", 3.90mm Width), 7 Leads→LNK6406D-TLLNK364DG-TLLNK363DN-TLLNK306DN-TL
8-DIP (0.300", 7.62mm), 7 Leads→LNK364PNLNK306PN
8-SMD (7 Leads), Gull Wing→LNK364GN-TLLNK353GN-TLLNK306GN-TL
SOIC→LNK364DN-TL
LinkSwitch-3 Series Applications
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Automotive ElectronicsAEC-qualified semiconductors and interconnects for ADAS, EV powertrain, BMS, and vehicle networks.
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Vehicle NetworkingCAN, LIN, and automotive Ethernet transceivers and PHYs.
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Telematics & Connected VehicleCellular, GNSS, and gateway devices.
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Energy & PowerPower conversion and protection components for solar, storage, charging, and industrial power.
Base Numbers
| Base Number | Description | Variants | Status | Action |
|---|---|---|---|---|
| LNK6406D | LNK6406D variants from Power Integrations | 2 MPNs | Active | View Details |
Technical Specifications
Compare key LinkSwitch-3 specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Power Specifications
Output Power
See datasheet
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-3 series.
The LinkSwitch-3 is a Power Integrations LinkSwitch-3 integrated power conversion IC for AC-DC and DC-DC applications. The series includes 24 variants optimized for different application requirements.
The LinkSwitch-3 series currently includes 24 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
Octatronics is an authorized distributor of Power Integrations products including the LinkSwitch-3 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-3 series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.