Power Integrations InnoSwitch3-EP | Power Integrations
InnoSwitch3-EP series from Power Integrations
Power Integrations InnoSwitch3-EP Series Overview
Highly integrated flyback switcher IC with primary/secondary/feedback integration on a single die.
The InnoSwitch3-EP from Power Integrations is a Highly integrated flyback switcher IC with primary/secondary/feedback integration on a single die. This series includes 41 variants, each tailored for specific application requirements while sharing a common architecture and design ecosystem.
Designed for offline power conversion, the InnoSwitch3-EP integrates key power components to minimize external component count, reduce board space, and simplify the design process. Achieving efficiencies up to Up to 94%, these devices help engineers meet increasingly stringent energy-efficiency standards while reducing time to market.
Octatronics stocks InnoSwitch3-EP 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 65W Output PowerSupports output power up to Up to 65W with excellent load and line regulation.
- Up to 94% Peak EfficiencyIndustry-leading conversion efficiency reduces thermal management requirements and meets global energy standards.
- 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
- USB PD chargers
- Notebook adapters
- Set-top box power
- Industrial power supplies
Compare InnoSwitch3-EP Variants
Side-by-side comparison of 10 product variants from Power Integrations
| Parameter | INN3699C-H606 | INN3699C-H605 | INN3697C-H606 | INN3697C-H605 | INN3690C-H606 | INN3690C-H605 | INN3679C-H606 | INN3679C-H605 | INN3678C-H606 | INN3678C-H605 |
|---|---|---|---|---|---|---|---|---|---|---|
| Package / Case | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D |
| Max Operating Temp | 150 °C | 150 °C | 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 | -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 | Auto-restart |
| Auto Restart Threshold | OL | 90% | OL | 90% | OL | 90% | OL | 90% | OL | 90% |
| Breakdown Voltage | 900 V | 900 V | 900 V | 900 V | 900 V | 900 V | 750 V | 750 V | 750 V | 750 V |
| Control Features | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response | Synchronous Rectification, Frequency Jittering, Auto-Restart/Latching Fault Response |
| Control Scheme | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink | Fluxlink |
| Internal Switch | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Max Input Voltage | 400 V | 400 V | 400 V | 400 V | 400 V | 400 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 | 85 V | 85 V |
| MSL Rating | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Official Product Url | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en | https://www.power.com/products/innoswitch/innoswitch3-ep?language=en |
| Operating Mode | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant | Quasi-Resonant |
| Output Power Max Open Frame 230v | 85.0 W | 85.0 W | 55.0 W | 55.0 W | 100.0 W | 100.0 W | 85.0 W | 85.0 W | 75.0 W | 75.0 W |
| Output Power Max Open Frame Univ | 75.0 W | 75.0 W | 50.0 W | 50.0 W | 85.0 W | 85.0 W | 75.0 W | 75.0 W | 65.0 W | 65.0 W |
| Output Profile | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC | CV/CC |
| Over Temperature Response | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic | Hysteretic |
| Package | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D | InSOP-24D |
| Powigan | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Product Family | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP | InnoSwitch3-EP |
| Product Type | IC | IC | IC | IC | IC | IC | IC | IC | IC | IC |
| Protection Features | Overtemperature, Open SR FET Detection, Input Overvoltage, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Overvoltage, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Overvoltage, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Overvoltage, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Overvoltage, Input Undervoltage, Output Overvoltage | Overtemperature, Open SR FET Detection, Input Undervoltage, Output Overvoltage |
| Secondary Response | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart | Auto-restart |
| Switching Frequency Avg 230 Vac | 70 kHz | 70 kHz | 70 kHz | 70 kHz | 70 kHz | 70 kHz | 65 kHz | 65 kHz | 70 kHz | 70 kHz |
| Switching Frequency Max | 110 kHz | 110 kHz | 110 kHz | 110 kHz | 110 kHz | 110 kHz | 95 kHz | 95 kHz | 95 kHz | 95 kHz |
| Switching Frequency Min | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz | 25 kHz |
| Topology | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback | Flyback |
| Voltage Output Max | 24 V | 24 V | 24 V | 24 V | 24 V | 24 V | 24 V | 24 V | 24 V | 24 V |
| Voltage Output Min | 5 V | 5 V | 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 | Request Quote | Request Quote |
InnoSwitch3-EP Series Applications
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Energy & PowerPower semiconductors, battery management ICs, solar inverter components, and EV charging modules.
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EV & PowertrainBattery management ICs, cell balancing circuits, and high-voltage isolation components for electric vehicles.
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Solar InvertersHigh-efficiency power conversion for photovoltaic systems.
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Automotive Power Management
Base Numbers
| Base Number | Description | Variants | Status | Action |
|---|---|---|---|---|
| INN3670C | INN3670C variants from Power Integrations | 2 MPNs | Active | View Details |
| INN3672C | INN3672C variants from Power Integrations | 3 MPNs | Active | View Details |
| INN3673C | INN3673C variants from Power Integrations | 3 MPNs | Active | View Details |
| INN3674C | INN3674C variants from Power Integrations | 3 MPNs | Active | View Details |
| INN3675C | INN3675C variants from Power Integrations | 4 MPNs | Active | View Details |
| INN3676C | INN3676C variants from Power Integrations | 4 MPNs | Active | View Details |
| INN3677C | INN3677C variants from Power Integrations | 4 MPNs | Active | View Details |
| INN3678C | INN3678C variants from Power Integrations | 2 MPNs | Active | View Details |
| INN3679C | INN3679C variants from Power Integrations | 2 MPNs | Active | View Details |
| INN3690C | INN3690C variants from Power Integrations | 2 MPNs | Active | View Details |
| INN3697C | INN3697C variants from Power Integrations | 2 MPNs | Active | View Details |
| INN3699C | INN3699C variants from Power Integrations | 2 MPNs | Active | View Details |
Technical Specifications
Compare key InnoSwitch3-EP specifications across available variants. All parameters are typical values at 25 degC unless otherwise noted.
Power Specifications
Output Power
Up to 65W
Input Voltage Range
85–265 VAC (universal input)
Peak Efficiency
Up to 94%
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 InnoSwitch3-EP series.
The InnoSwitch3-EP is a Power Integrations Highly integrated flyback switcher IC with primary/secondary/feedback integration on a single die. The series includes 41 variants optimized for different application requirements.
The InnoSwitch3-EP series currently includes 41 variants. Each variant may differ in package type, operating specifications, and feature set. Browse the product table above to compare available options.
The InnoSwitch3-EP series is used in USB PD chargers, Notebook adapters, Set-top box power, and Industrial power supplies. Contact our applications team for design-in support and recommendation.
Octatronics is an authorized distributor of Power Integrations products including the InnoSwitch3-EP 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 InnoSwitch3-EP series. Small-quantity orders are available for design evaluation, with volume pricing for production runs. Contact our sales team for custom pricing.