SC1117DG-TL

The SC1117DG incorporates a 700 V power MOSFET, oscillator, simple ON/OFF control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit and thermal shutdown circuitry onto a monolithic IC. The startup and operating power are derived directly from the DRAIN pin, eliminating the need for a bias winding and associated circuitry.

• Fully integrated auto-restart for short circuit and open-loop protection
• Frequency jittering greatly reduces EMI
• Meets HV creepage requirements between DRAIN and all other pins both on the PCB and at the package
• Lowest component count switcher solution
• Accurate hysteretic thermal shutdown protection - automatic recovery improves field reliability
• Universal input range allows worldwide operation
• Simple ON/OFF control, no loop compensation needed
• Very low component count - higher reliability and single side printed circuit board
• Auto-restart reduces delivered power by 95% during short circuit and open-loop fault conditions
• High bandwidth provides fast turn-on with no overshoot and excellent transient load response
• Ideal for Buck/Buck-Boost configuration
• Simplified feedback in non--isolated flyback configuration