EUP3406

EUP3406 1.5MHz, 600mA Synchronous Step-Down Converter DESCRIPTION The EUP3406 is a constant frequency, current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency. The 2.5V to 5.5V input voltage range makes the EUP3406 ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery or 3-cell NiMH/ NiCd batteries. The output voltage can be regulated as low as 0.6V. The EUP3406 supports up to 600mA load current and can also run at 100% duty cycle for low dropout applications, extending battery www.DataSheet4U.com life in portable systems. Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductor and capacitors. The internal synchronous switch increases efficiency while eliminate the need for an external Schottky diode. The EUP3406 is available in a low profile 5 lead SOT package. FEATURES z z z z z z z z z z z z z High Efficiency 1.5MHz Constant Switching Frequency 600mA Available Load Current 270µA Typical Quiescent Current 2.5V to 5.5V Input Voltage Range Adjustable Output Voltage as Low as 0.6V 100% Duty Cycle Low Dropout Operation No Schottky Diode Required Short Circuit and Thermal Protection Over Voltage Protection ¡Õ 1µA Shutdown Current Available in SOT23-5 Package RoHS Compliant and 100% Lead(Pb)-Free APPLICATIONS z z z z z Cellular and Smart Phones Portable Media Players/ MP3 Players Digital Still and Video Cameras Portable Instruments ...