SR087
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 m A bined Output Current
- Single BOM for 120 VAC/230 VAC
- Built-in Soft Start
- Less than 200 m W 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 rectified AC is below the output voltage and to turn it off when the output voltage reaches a specific level. The ICs feature an adjustable main output voltage of 9V to 50V and an additional fixed output of 3.3V for SR086 and 5V for SR087. Efficiencies of around 55% may be...
