AP3585AMTR-G1

A Product Line of Diodes Incorporated AP3585A/B/C SINGLE PHASE SYNCHRONOUS BUCK PWM CONTROLLER Description Pin Assignments NEW PRODUCT The AP3585A/B/C is a compact synchronous-rectified buck controller specifically designed to operate from 4.5V to 13.2V supply voltage and deliver high-quality output voltage as low as 0.8V (AP3585A) or 0.6V (AP3585B/C). This SO-8EP device operates at fixed 300kHz/200kHz frequency and provides an optimal level of integration to reduce size and cost of the power supply. (Top View) This controller integrates internal MOSFET drivers that support 12V+12V bootstrapped voltage for high- efficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count. BOOT 1 8 PHASE UGATE 2 7 COMP/EN GND 3 6 FB LGATE/OCSET 4 5 VCC 8 PHASE 7 COMP/EN 6 FB 5 VCC This controller provides single feedback loop, voltage-mode control with fast transient response. The error amplifier features a 10MHz gain-bandwidth product and 6V/μs slew rate which enables high converter bandwidth for fast transient performance. (SO-8/ M Package) (Top View) Other features include internal soft-start, under voltage protection, over current protection and shutdown function. With afore mentioned functions, this part provides customers a compact, high efficiency, well-protected and cost-effective solution. BOOT 1 UGATE 2 GND 3 LGATE/OCSET 4 The AP3585A/B/C is available in SO-8 and SO-8EP packages. Features               Supply Voltage: 4.5V to 13.2V VIN Input Range: 3.3V to 12V 0.8V/0.6V to 80% of VIN Output Range Internal Reference: 0.8V/0.6V Simple Single-loop Control Voltage-mode PWM Control Duty Cycle: 0% to 80% 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 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: Exposed Pad 9 (SO-8EP/ MP Package) 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 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain