HX1102

HHXX11110022 Synchronous Buck DC/DC Converter Features Up to 94% Efficiency Current Mode Operation for Excellent Line and Load Transient Response Low Quiescent Current: 200µA Up to 800mA Load Current Soft-start ： ～Output Voltage 0.6V 5.5V Automatic PWM/PFM Mode Switching No Schottky Diode Required 1.2MHz Constant Frequency Operation Short-Circuit Protection Shutdown Quiescent Current: < 1µA Low Profile SOT-23-5L Package (lead-free packaging is now available) Applications Digital cameras and MP3 Palmtop computers / PDAs Cellular phones Wireless handsets and DSL modems PC cards Portable media players Description The HX1102 is a high efficiency synchronous, PWM step-down DC/DC converter working under an input voltage range of 2.5V to 5.5V. This feature makes the HX1102 suitable for single Li-lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 200µA with no load, and drops to < 1µA in shutdown. The ...