| Description & Applications | Step-Up DC/DC Converters •High Efficiency: Up to 95% •No Current Sense Resistor Required •Constant Frequency 530kHz Operation Allows •Small Size, Surface Mount Inductors •OPTI-LOOPTM Compensation Minimizes COUT •Selectable Burst ModeTM Operation •Minimum Start-Up Voltage as low as 0.9V •Synchronizable Between 400kHz and 750kHz •Micropower Shutdown: 10µA •Current Mode Operation for Excellent Line and Load Transient Response •Soft-Start Reduces Supply Current Transients •1.5% Output Voltage Accuracy •Uses Low Value, Small Size, Surface Mount Inductors •Available in 10-Lead MSOP Package •Cellular Telephones • Wireless Modems •RF Communications •2.5V to 3.3V, 2.5V to 5V Converters •Battery-Powered Equipment •Telecom/Network Systems |