NCP81233: Multi-Phase Controller, Configurable, 4.5 V to 20 V, I2C

Description: The NCP81233 is a multi-phase controller capable o...
  • The NCP81233 is a multi-phase controller capable of operating as a 1, 2, 3, 4, or 6 phase controller. The device offers an I2C interface can be used for configuring the output voltage, slew rate, overvoltage and undervoltage thresholds, and input UVLO. The NCP81233 provides the PWM signal to interface to DrMOS and can support both 3.3V/5V logic. The device features remote sense for maintaining the voltage accuracy for high current designs. Differential current sense can be used for inductor DCR sensing or with the Iout signal from the DrMOS. The device allows Vout and Iout to be read out through the I2C interface. The part can be interfaced to the NCP81162 phase double circuitry to allow for operation up to 12 phases.
  • Features
  • Selectable 1,2,3,4 or 6 phase operation - Scalability allows same IC solution to be used for multiple rails
  • Supports up to 12 phases using phase doublers - Allow flexibility for higher current designs
  • I2C configuration - Flexibility in design
  • 4.5V to 20V - Ideal for 12V bus designs
  • Differential current sense - Supports DCR or IMON sense
  • Remote differential voltage sense - Better output voltage accuracy
  • Supports 3.3V/5V PWM - Allows use of wide range of DrMOS solutions
  • Report Iout and Vout - Monitoring capability
  • Overcurrent, Overvoltage Voltage, and Thermal Protection - Protects against faults
  • Applications
  • Network Processor
  • ASICs
  • End Products
  • Network Switch
  • Routers
  • Telecom Equipment
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Multi-Phase Controller, Configurable, 4.5 V to 20 V, I2C
  • Package Type: QFN-52
  • Package Case Outline: 485BE
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):4 to 8
  • Arrow:0
  • ON Semiconductor:7,500
  • Specifications
  • Topology: Step-Down 
  • Phases: 4/5/6 
  • Control Mode: Current/Voltage Mode 
  • VCC Min (V): 4.5 
  • VCC Max (V): 20V 
  • fSW Typ (kHz): 200 to 1200 
  • Package Type: QFN-52 
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