LG2 21 PVCC Typical Applications 25 GND 8 24 PH1 REFIN 7 VIDBUF VREF VID 23 LG1 PSI 9 EN FS HG1 22 PGND GPU and CPU Power Graphics Card Applications Desktop and Notebook Applications BST1 1 2 3 4 5 6 (Top View) ORDERING INFORMATION Device Package Shipping NCP81172MNTXG QFN24 (Pb-Free) 4000 / Tape & Reel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2013 April, 2013 - Rev. 1 1 Publication Order Number: NCP81172/D NCP81172 +5 V +5 V 15 VCC PVCC 21 25 GND PGND 22 VIN +3.3 V HG1 2 BST1 1 VOUT PH1 24 EN 3 EN PSI 4 PSI PG LG1 23 VIN 16 PGOOD NCP81172 TALT 14 TALERT# HG2 17 VID 5 VID BST2 18 13 TSNS PH2 19 LG2 20 8 VREF 7 REFIN 6 VIDBUF 9 FS FBRTN 10 FB 11 COMP 12 Figure 1. Typical Application Circuit with PWM-VID Interface http://onsemi.com 2 NCP81172 +5 V +5 V 15 VCC PVCC 21 25 GND PGND 22 VIN +3.3 V HG1 2 BST1 1 VOUT PH1 24 EN 3 EN PSI