ADP3089 - 1A Buck Regulator

IN IN 1 MHz, 1 A Buck Regulator ADP3089 FUNCTIONAL BLOCK DIAGRAM SW CURRENT SENSE PWM 1MHz AMP COMPARATOR S Q R DRV PROTECTION LOGIC (ILIM, OT) ERROR AMP gm RUN/STOP COMPARATORS FB SOFT-START TIMER COMP GND GND + REF 1.245V VIN 10µF 0.1µF IN IN ADP3089 SW SW DRV FB 10µH 1N5817 53.6kΩ + 10µ

• 1 MHz PWM Frequency Ultrasmall 8-lead 3×3 Sq. mm Chip Scale Package Automatic PWM to Power Saving Mode at Light Load Fully Integrated 1.5 A Power Switch 3% Output Regulation Accuracy over Temperature, Line, and Load 100% Duty Cycle Operation www. DataSheet4U. com Simple Compensation Output Voltage: 1.25 V to 11.5 V Input Voltage: up to 12 V Small Inductor and MLC Capacitors Low Quiescent Current while Pulse Skipping Thermal Shutdown Fully Integrated Soft Start Cycle-by-cycle Current Limit.