FAN4603

FAN4603 — 500mA, Fully Integrated Buck Power Supply Module www.DataSheet4U.com April 2010 FAN4603 500mA, Fully Integrated, Buck Power Supply Module Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ƒ Solder and Play DC/DC Converter; No External Components Required Up to 91% Efficiency 500mA Output Current Capability 2.3V to 5.5V Input Voltage Range Fixed Output Voltages from 1.2V to 1.8V 35µA PFM Quiescent Current Best-in-Class Load and Line Transient Response ±4% PWM DC Voltage Accuracy No External Components Required High-Efficiency, Low-Ripple, Light-Load PFM Thermal Shutdown (TSD), Under-Voltage Lockout, (UVLO), and Short-Circuit (SCP) Protection 4.0 x 2.5mm MLP Package Maximum Height: 1.1mm Description The FAN4603 is a fully integrated synchronous DC/DC buck converter that provides up to 500mA of output current over an input voltage ranging from 2.3V to 5.5V. It provides a fixed output voltage level ranging from 1.2V to 1.8V. Other voltage options are available on request. The FAN4603 converter is offered as an ultra-miniature “Solder and Play” solution that requires no external components and is able to achieve a DC accuracy of ±4% PWM and an output ripple less than 12mV. Total footprint is 4.0 x 2.5mm with a maximum height of 1mm. It can be used in small battery-powered devices and applications with distributed DC POL requirements. At moderate and light loads, pulse frequency modulation is used to operate the device in power-save mode with a typical quiescent current of 35µA. Even ...