To treat patients with life-threatening irregular or pulseless heart conditions, untrained medical bystanders and responders can use an automatic external defibrillators (AEDs) that automate the diagnosis of treatable rhythms to deliver a therapeutic dose of electrical energy or shock to the heart. Easy to use features such as a microphone to record/playback the audio to diagnose and clear step-by-step voice instructions through speakers or headphones are common in AEDs. Delivering a shock or dose of electrical energy requires generating high voltage through a high voltage power supply. Stable power for sensors and processors for MCUs or DSPs and A/D or D/A converters are fundamental. Fairchild has the product breadth and right solutions to enable automatic external defibrillators.