CE8503AM

飞 lri1i7面I• 阳TiHl'而..... • The CE8503 is a constant frequency, current mode High efficiency :Up to 96% The device integrates a main • 1.5MHz Constant Frequency Operation switch and a synchronous rectifier for high efficiency • 800mA Output Current step-down conve 时er. without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) ba忧ery. The output voltage can be regulated as low as 0.6V. The CE8503 can also run at 100% duty cycle for low dropout operation , extending ba忧ery life in portable system. This device offers two operation modes, P叭／M control and PFM Mode switching O忏ered No Schottky Diode Required • 2V to 6.5V Input Voltage Range • Output Voltage as Low as 0.6V • PFM Mode for High Efficiency in Light Load • 100% Duty Cycle in Dropout Operation • Low Quiescent Current: 20µA • Slope Compensated Current Mode Control for Excellent Line and Load Transient Response control , which allows a high efficiency over the wider range of the load. The CE8503 is • in a low profile 5-pin , SOT package, and is available in an adjustable version • Short Circuit Protection • Thermal Fault Protection • Inrush Cu 「rent Limit and Soft Start •