S-19914/5 Automotive Switching Regulators ABLIC S-19914/5 Automotive Switching Regulators are low EMI synchronous step-down regulators designed using high withstand voltage CMOS process technologies. These regulators are equipped with a built-in spread spectrum clock generation circuit. This circuit spreads the operating frequency range across a wide bandwidth during the PWM operation and reduces noise to about 1/3 of conventional devices. The S-19914/5 regulators are also equipped with a built-in overcurrent protection circuit, a thermal shutdown circuit, and a built-in synchronous circuit.