NCP81148: Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO

Description: NCP81148 is a dual synchronous buck controller tha...
  • NCP81148 is a dual synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into multiple power rails required in desktop and notebook system. NCP81148 consists of two buck switching controllers with fixed 5.0 V output on channel 2, 3.3 V on channel 1 and two on−board LDOs with three outputs: 5 V / 60 mA and 3.3 V or 12 V / 10 mA. NCP81148 supports high efficiency, fast transient response and provides power good signals. ON Semiconductor proprietary adaptive−ripple control enables seamless transition from CCM to DCM, where converter runs at reduced switching frequency with much higher efficiency at light load. The part operates with supply voltage ranging from 5.5 V to 28 V.
  • Features
    Technical Documentation & Design Resources
    Availability and Samples
    NCP81148MNTWG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO
  • Package Type: QFN-28
  • Package Case Outline: 485AR
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Specifications
  • Topology: Step-Down 
  • Phases:
  • Control Mode: Voltage Mode 
  • VCC Min (V): 5.5 
  • VCC Max (V): 28 
  • fSW Typ (kHz): 300, 400, 600 
  • Package Type: QFN-28 
  • ON Semiconductor Full Web Site