The HT7730 is a DC-DC step-up converter produced by Holtek, which operates with 1.6V to 3V input voltage range at 100mA. The device is packaged in a SOT23-3 RoHS compliant plastic package. It includes a built-in oscillator and PWM controller to provide over current protection,enable/shutdown pin, and short circuit protection. It also features wide operating temperature range, low external component count, and ultra-low standby current consumption. The HT7730 is suitable for various applications such as wearable electronic products, consumer electronic products,charger appliances, and handheld electronic products.