AP3598AFNTR-G1

PART OBSOLETE NO ALTERNATE PART A Product Line of Diodes Incorporated AP3598A COMPACT DUAL-PHASE SYNCHRONOUS-RECTIFIED BUCK CONTROLLER Pin Assignments (Top View) LGATE2 The AP3598A provides over current protection, input/output under voltage protection, over voltage protection and over temperature protection. PHASE2 The dynamic output voltage could be implemented by analog method with a switching device and a resistor network. The adjustable current balance is achieved by RDS(ON) current sensing technique. PVCC 24 GND Pin 1 Mark LGATE1 The AP3598A is a dual-phase synchronous buck PWM controller with integrated drivers which are optimized for high performance graphic card and computer applications. The IC is capable of delivering up to 60A output current capability, supporting 12V MOSFET drivers with internal bootstrap diodes. PHASE1 23 22 21 20 19 BOOT1 1 18 BOOT2 HGATE1 2 17 HGATE2 16 PGOOD EN 3 PSI 4 VID 5 REFADJ 6 THERM/ GND 14 TALERT# 10 11 12 VSNS COMP VREF 9 FS 8 GNDSNS 7 Other features include adjustable soft start, adjustable operation frequency and so on. With aforementioned functions, the IC adopts UQFN4040-24 package. 15 VCC 25 REFIN OBSOLETE – PART DISCONTINUED Description 13 TSNS U-QFN4040-24 Features Applications • Operate with Single Supply Voltage • Reference Voltage Output with 1% Accuracy • Simple Single Loop Voltage Mode Control • Middle-High End Graphic Card 12V Bootstrapped Drivers with Internal Boot-strap Diodes • Generic Desktop and Consumer Electronics • • Adjustable Current Balancing by RDS(ON) Current Sensing • Adjustable Operation Frequency from 200kHz to7500kHz Per Phase • External Compensation • Dynamic Output Voltage Adjustment • Adjustable Soft Start • Built-in UV and OV Protection Function • Built-in Over Current Protection • Built-in Thermal Shutdown Function • U-QFN4040-24 Package • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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