ADP3050
FEATURES
Wide Input Voltage Range: 3.6 V to 30 V Adjustable and Fixed (3.3 V, 5 V) Output Options Integrated 1 A Power Switch Uses Small Surface-Mount ponents Cycle-By-Cycle Current Limiting Peak Input Voltage (100 ms): 60 V Thermally Enhanced 8-Lead SOIC Package Configurable as a Buck, Buck-Boost and SEPIC Regulator APPLICATIONS Industrial Power Systems PC Peripheral Power Systems Preregulator for Linear Regulators Distributed Power Systems Automotive Systems Battery Chargers
200 k Hz, 1 A High-Voltage Step-Down Switching Regulator ADP3050
FUNCTIONAL BLOCK DIAGRAM
BIAS IN CURRENT SENSE AMPLIFIER
SD GND
2.5V REGULATOR
FREQUENCY AND CURRENT LIMIT FOLDBACK
CURRENT LIMIT
+
200k Hz OSCILLATOR BOOST CMP S R gm Q DRIVER SWITCH
1.2V
GENERAL DESCRIPTION
The ADP3050 is a current-mode monolithic buck (step-down) PWM switching regulator that contains a high current 1 A power switch and all control, logic, and protection functions. It uses a unique pensation scheme that...
