Renesas IW1820-33 Flyback Switching Regulator IC
The IW1820-33 is a high-performance isolated flyback switching regulator from Renesas Electronics Corporation, designed for AC/DC power conversion applications requiring up to 15W output power. This integrated circuit features an 800V breakdown voltage rating and operates at 72kHz switching frequency, making it ideal for offline power supply designs in industrial, telecommunications, and consumer electronics applications.
Key Features & Benefits
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Isolated Flyback Topology: Provides electrical isolation between input and output for enhanced safety and noise immunity
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15W Power Output: Suitable for low to medium power applications including auxiliary power supplies and battery chargers
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800V Breakdown Voltage: High voltage capability for direct offline operation from AC mains
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Comprehensive Protection: Built-in current limiting, over-temperature, over-voltage, and short circuit protection ensures reliable operation
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Soft Start Control: Reduces inrush current and stress on components during power-up
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Wide Operating Temperature: -40°C to 150°C (TJ) junction temperature range for demanding environments
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Surface Mount Package: 10-SOIC Batwing package for automated assembly and space-efficient designs
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RoHS Compliant: Meets environmental standards for lead-free manufacturing
Applications
- Offline AC/DC power supplies
- Auxiliary power for industrial equipment
- Telecommunications power modules
- Battery charger circuits
- Smart home and IoT devices
- Medical equipment power supplies