NCP1203
features a high- voltage startup FET which ensures a clean and loss- less startup sequence. Its current- mode control naturally provides good audio- susceptibility and inherent pulse- by- pulse control.
When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so- called skip cycle mode and provides improved efficiency at light loads while offering excellent performance in standby conditions. Because this occurs at a user adjustable low peak current, no acoustic noise takes place.
The NCP1203 also includes an efficient protective circuitry which, in presence of an output over load condition, disables the output pulses while the device enters a safe burst mode, trying to restart. Once the default has gone, the device auto- recovers. Finally, a temperature shutdown with hysteresis helps building safe and robust power supplies.
Features
- High- Voltage Startup Current Source
- Auto- Recovery Internal Output Short- Circuit...
