NCP5217: Synchronous Buck Controller, Single

Description: The NCP5217A is a synchronous step-down controller...
  • The NCP5217A is a synchronous step-down controller for high performance battery-power systems. The NCP5217A includes a high efficiency PWM controller. A pin is provided to enable or disable force PWM mode of operation. An internal power good voltage monitor tracks the SMPS output. NCP5217A also features soft-start sequence, UVLO for VCC and switcher, overvoltage protection, overcurrent protection, undervoltage protection and thermal shutdown. The IC is packaged in QFN-14.
  • Features
  • 0.8% accuracy 0.8 V reference
  • 4.5 V to 27 V battery/adapter voltage range
  • Selectable power saving mode/force PWM mode
  • Lossless inductor current sensing
  • Programmable adaptive voltage positioning (AVP)
  • Input supply feedforward control
  • Internal Soft-Start
  • Integrated output discharge (Soft Stop)
  • Built-in adaptive gate driver
  • PGOOD indication
  • Overvoltage, undervoltage and overcurrent protection
  • Thermal shutdown
  • Applications
  • Notebook computers
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Buck Controller, Single
  • Package Type: QFN-14
  • Package Case Outline: 485AL
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 3000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • ON Semiconductor:3,000
  • PandS:>1K
  • Specifications
  • Topology: Step-Down 
  • Phases:
  • Control Mode: Current/Voltage Mode 
  • VCC Min (V): 4.5 
  • VCC Max (V): 27 
  • fSW Typ (kHz): 300 
  • Package Type: QFN-14 
  • ON Semiconductor Full Web Site