NCP5269B: System Agent Controller with 2-bit VID

Datasheet: Synchronous Buck Controller with 2-Bit VID Inputs
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NCP5269B is a synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into power supply rails required in notebook and desktop system. NCP5269B is designed for applications requiring dynamically selected slew−rate controlled output voltages. The soft−start is programmed by a single capacitor. Voltage identification logic−inputs select four resistor programmed set−point reference voltages that directly set the output voltage of the converter between 0.65 V to 1.5 V. NCP5269B supports high efficiency, fast transient response and provides power good signal. Forced CCM operation provides DDR termination voltage with source/sink capability. The part operates with input voltage ranging from 3.3 V to 28 V. NCP5269B is available in a 20−pin 3 mm x 3 mm QFN package.
Features   Benefits
  • Forced CCM Operation
  • Forced CCM operation for DDR termination voltage with source/sink capability
  • Wide Input Voltage Range: from 3.3 V to 28 V
  • Three Selectable Fixed Frequency 300 kHz, 400 kHz or 600 kHz
  • 2−Bit VID Selects Four Independent Voltages from 0.65 V to 1.5 V
  • ±1.0% System Accurac
  • Differential Remote Output Voltage Sensing
  • Build−in Power−Good Masking Supports Voltage Identification(VID) On−The−Fly Transients
  • Soft Transient Control Reduces Inrush Current and Audio Noise
  • Simple Resistor Programming Voltage Levels
  • Programmable Soft−Start through a Single Capacitor
  • Input Supply Voltage Feed Forward Control
  • Resistive or Lossless Inductor’s DCR Current Sensing
  • Over−Temperature Protection
  • Built−in Adaptive Gate Drivers
  • Output Discharge Operation
  • Built−in Over−Voltage, Under−Voltage and Over−Current Protection and Power Good Output
  • Pb−Free Device
Applications   End Products
  • DDR Termination Voltage
  • I/O Supplies
  • System Power Supplies
  • Notebooks, Desktops & Servers
  • Graphic Cards
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCP5269GEVB Active
Synchronous Buck Controller with 2-bit VID for System Agent Evaluation Board
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NCP5269BMNTWG Lifetime
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NCP5269B, System Agent Controller with 2-bit VID QFN-20 485BC 1 260 Tape and Reel 3000 $0.3667
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Synchronous Buck Controller with 2-bit VID for System Agent Evaluation Board - NCP5269GEVB
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