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Synchronous Buck Controller with 2-Bit VID Inputs NCP5269B NCP5269B is a synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into power supply www.onsemi.com rails required in notebook and desktop system. NCP5269B is designed for applications requiring dynamically selected slewrate controlled MARKING output voltages. The softstart is programmed by a single capacitor. DIAGRAM Voltage identification logicinputs select four resistor programmed setpoint reference voltages that directly set the output voltage of the 5269B 20 PIN QFN, 3x3 ALYW converter between 0.65 V to 1.5 V. NCP5269B supports high MN SUFFIX efficiency, fast transient response and provides power good signal. CASE 485BC Forced CCM operation provides DDR termination voltage with 5269B = Specific Device Code source/sink capability. The part operates with input voltage ranging A = Assembly Location from 3.3 V to 28 V. NCP5269B is available in a 20pin 3 mm x 3 mm L = Wafer Lot QFN package. Y = Year W = Work Week Features = PbFree Package Wide Input Voltage Range: from 3.3 V to 28 V (Note: Microdot may be in either location) Three Selectable Fixed Frequency 300 kHz, 400 kHz or 600 kHz 2Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V PIN CONNECTIONS 1.0% System Accuracy Differential Remote Output Voltage Sensing Soft Transient Control Reduces Inrush Current and Audio Noise Buildin PowerGood Masking Supports Voltage Identification 1 EN BST (VID) OnTheFly Transients VCC GH Simple Resistor Programming Voltage Levels AGND VID1 SWN Programmable SoftStart through a Single Capacitor VID0 VCCP V3 GL/FSET Forced CCM Operation Input Supply Voltage Feed Forward Control Resistive or Lossless Inductors DCR Current Sensing OverTemperature Protection (Top View) Builtin Adaptive Gate Drivers Output Discharge Operation Builtin OverVoltage, UnderVoltage and OverCurrent Protection ORDERING INFORMATION and Power Good Output Device Package Shipping This is a PbFree Device NCP5269BMNTWG QFN20 3000 / (PbFree) Tape & Reel Applications Notebooks, Desktops & Servers For information on tape and reel specifications, including part orientation and tape sizes, please DDR Termination Voltage refer to our Tape and Reel Packaging Specification I/O Supplies Brochure, BRD8011/D. System Power Supplies Graphic Cards Semiconductor Components Industries, LLC, 2013 1 Publication Order Number: September, 2020 Rev. 0 NCP5269B/D V2 COMP V1 FB VREF FBRTN PG CSN PGND CSP