NCP1421 is a monolithic micropower high-frequency step-up switching converter IC specially designed for battery- operated hand-held electronic products up to 600 mA loading. It integrates Sync-Rect to improve efficiency and to eliminate the external Schottky Diode. High switching frequency (up to 1.2 MHz) allows for a low profile, small sized inductor and output capacitor to be used.
High Efficiency High Switching Frequency, up to 1.2 MHz True-Cutoff Function Reduces Device Shutdown Current to typically 50nA Anti-Ringing Ring-Killer for Discontinuous Conduction Mode High Accuracy Reference Output Low Quiescent Current of 8.5 μA Integrated Low-Battery Detector Open Drain Low -Battery Detector Output Output Voltage from 1.5V to 5.0V Adjustable Multi-function Logic Controlled Shutdown Pin On Chip Thermal Shutdown with Hysteresis Housed in Space Saving and Low Profile Micro8 package