ADP3164
FEATURES
ADOPT™ Optimal Positioning Technology for Superior Load Transient Response and Fewest Output Capacitors plies with VRM 9.1 with Lowest System Cost 4-Phase Operation at up to 500 k Hz per Phase Quad Logic-Level PWM Outputs for Interface to External High-Power Drivers Active Current Balancing between All Output Phases Accurate Multiple VRM Module Current Sharing 5-Bit Digitally Programmable 1.1 V to 1.85 V Output Total Output Accuracy ؎0.8% Over Temperature Current-Mode Operation Short Circuit Protection Enhanced Power Good Output Detects Open Outputs in Multi-VRM Power Systems Overvoltage Protection Crowbar Protects Microprocessors with No Additional External ponents APPLICATIONS Desktop PC Power Supplies for: Intel Pentium® 4 Processors VRM Modules
5-Bit Programmable 4-Phase Synchronous Buck Controller ADP3164
FUNCTIONAL BLOCK DIAGRAM
UVLO & BIAS SET RESET CROWBAR REF GND DAC + 20% CT OSCILLATOR POWER GOOD 3.0V REFERENCE 4-PHASE DRIVER LOGIC PWM1 PWM2 PWM3 PWM4...