AP3586AMTR AP3586 Single Phase Synchronous Buck PWM Controller

AP3586AMTR AP3586 Single Phase Synchronous Buck PWM Controller

Features 

 • Supply Voltage: 5V/12V 

• VIN Input Range: 3.3V to 12V 

• 0.6V/0.8V to 82% of VIN Output Range 

• Internal Reference: 0.6V/0.8V 

• Simple Single-loop Control 

• Voltage-mode PWM Control 

• Duty Cycle: 0% to 82% 

• Fast Transient Response 

• 10MHz High-bandwidth Error Amplifier with 6V/µs Slew Rate 

• Fixed Oscillator Frequency: 300kHz/200kHz 

• Lossless, Programmable Over Current Protection (Uses Lower MOSFET RDS(ON) ) 

• Start-up into Pre-biased Load 

• Built-in Thermal Shutdown 

• Built-in Soft-start 

• Over Current Protection 

• Over Voltage Protection 

• Under Voltage Protection • Integrated Boot Diode 

 Applications 

 • Subsystem Power Supplies 

• PCI, AGP, Graphics Cards, Digital TV 

• SSTL-2 and DDR/2/3 SDRAM Bus Termination Supply 

• Cable Modems, Set Top Boxes, and DSL Modems 

• Industrial Power Supplies and General Purpose Supplies 

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