NCP81233 MultiPhase Controller with 2 I C Interface for DrMOS The NCP81233, a multi-phase synchronous buck controller with an 2 I C interface, provides power management solutions for applications supported by DrMOS. It supports 1-, 2-, 3-, 4-, or 6-phase operation www.onsemi.com and provides differential voltage and current sense, flexible programming, and comprehensive protections. Features Selectable 1-, 2-, 3-, 4-, or 6-Phase Operation Support up to 12-Phase Operation with Phase Doublers 1 52 2 I C Interface with 8 Programmable Addresses GFN52 6x6, O.4P Vin = 4.5 V ~ 20 V with Input Feedforward CASE 485BE Integrated 5.35 V LDO and 3.3 V LDO PINOUT Fsw = 200 k ~ 1.2 MHz 52 PIN, QFN 52 51 50 49 48 47 46 45 44 43 42 4137 40 Vout = 0.6 V ~ 5.3 V with 0.25 V~1.52 V DAC (5 mV/step) 1 39 Programmable Vboot Voltage 0.6V ~ 1.23V (10mV/step) with 2 38 3 37 Restore Function 4 36 5 35 DVID Slew Rate Options (0.125 mV/us, 0.25 mV/us, 0.5 mV/us, 1 34 6 GND 7 33 mV/us, 2 mV/us, 4 mV/us, 8 mV/us, 16 mV/us) 53 8 32 Programmable External Reference Input 9 31 10 30 PWM Output Compatible to 3.3 V and 5 V DrMOS 29 11 12 28 Differential Output Voltage Sense 27 13 Differential Current Sense Compatible for both Inductor DCR Sense 14 15 16 17 18 19 20 21 22 23 24 2425 26 and DrMOS Iout Signal For more details see Figure 1. Programmable Load Line MARKING DIAGRAM* Report of Vout and Iout Enable with Programmable Input UVLO DrMOS Power Ready Detection (DRVON) NCP81233 AWLYYWWG Externally Programmable Soft Start Power Saving Interface Power Good Indicator A = Assembly Location WL = Wafer Lot Programmable Over Current Protection YY = Year Programmable Over/Under Voltage Protection WW = Work Week G = Pb-Free Package Hiccup Over Temperature Protection Thermal Shutdown Protection *This information is generic. Please refer to device data sheet for actual part marking. This is a Pb-Free Device Pb-Free indicator, G or microdot , may or may not be present. Typical Applications ORDERING INFORMATION Telecom Applications Device Package Shipping Server and Storage System NCP81233MNTXG QFN52 2500 / Tape & Reel Graphics Card Applications (Pb-Free) Multiphase DC-DC Power Management For information on tape and reel specifications, in- cluding part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: January, 2019 Rev. 1 NCP81233/DNCP81233 52 51 50 49 48 47 46 45 44 43 42 41 40 1 IMON ISP1 39 ISN1 38 2 IMAX 3 VBOOT1 ISN2 37 4 VBOOT2 ISP2 36 SS ISP3 35 5 6 FSET ISN3 34 GND 7 CONFIG ISN4 33 53 8 ISP4 32 MODE1 31 9 ISP5 MODE2 10 ISN5 30 ADDR ISN6 29 11 SDA ISP6 28 12 ALERT VB RST /PSI 27 13 SCL 14 15 16 17 18 19 20 21 22 23 24 25 26 Figure 1. Pin Configuration www.onsemi.com 2 PGOOD REFIN DRVON VSN EN VSP VIN DIFFOUT FB VCC5V VCC3V COMP PVCC NC PWM6 VDRP PWM5 VDFB PWM4 CSSUM PWM3 VREF OTP PWM2 PWM1 ILMT