SR086/SR087
Adjustable Offline Inductorless Switching
Regulators
Features
• Efficient Operation without Magnetics • No High-voltage Capacitors • Adjustable Main Output Voltage (9V to 50V) • Additional Internal Linear
Regulator:
- 3.
3V for SR086 - 5V for SR087 • Up to 100 mA Combined Output Current • Single BOM for 120 VAC/230 VAC • Built-in Soft Start • Less than 200 mW Standby Power
Applications
• White Goods • Household Appliances • Lighting Controls • Circuit Breakers • Keep-alive Supplies
General Description
The SR086/SR087 are inductorless switching
regulators designed to operate directly from a rectified AC line.
The operating principle is to turn on a pass
transistor when the rectif...