TOP201YN Three-terminal Off-line PWM Switch 5.8V 1.2mA TO-220/3 (YO3A)
The TOP201YN is an integrated off-line PWM switch from the TOP Switch family, designed to simplify AC-DC power supply design by combining a high-voltage power MOSFET, PWM controller, and protection circuitry into a single device. Its three-terminal configuration makes it easy to implement in compact designs, reducing the need for multiple external components while maintaining high efficiency and reliability.
This device is widely used in switched-mode power supplies (SMPS), adapters, and chargers, where stable and efficient power conversion is required. The TOP201YN provides built-in protection features such as overcurrent limiting, thermal shutdown, and auto-restart, ensuring safe operation under fault conditions. Its TO-220 package allows better heat dissipation, making it suitable for higher power applications compared to smaller packages.
Features:
- Integrated high-voltage MOSFET and PWM controller.
- Three-terminal design for simplified circuits.
- High efficiency power conversion.
- Built-in thermal shutdown protection.
- Auto-restart and fault protection.
- Current limiting protection.
- Reduced external component count.
- Suitable for SMPS and AC-DC converters.
Specifications:
| Parameter | Value |
|---|---|
| Input Voltage Range | Up to 700 V |
| Output Power | Up to 20 W |
| Switching Frequency | ~100 kHz |
| Drain Current | ~0.3 A |
| Control Method | PWM |
| Operating Temperature | -40°C to +150°C |
| Package Type | TO-220-3 |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | Control | Feedback and control input |
| 2 | Drain | High-voltage input |
| 3 | Source | Ground reference |
Applications:
- AC-DC power supplies.
- Battery chargers.
- SMPS (Switched Mode Power Supplies).
- Adapters.
- Standby power supplies.
- Consumer electronics power circuits.
Package Included:
- 1x TOP201YN Three-terminal Off-line PWM Switch 5.8V 1.2mA TO-220/3 (YO3A).