NCP81234: Multi-Phase Controller with Dual Loop Capability, Configurable, DrMOS Compatible

Description: The NCP81234 can be configured as a single or dual...
  • The NCP81234 can be configured as a single or dual output regulator intended to operate with DrMOS power stages. The device operates from 4.5V to 24V and is ideally suited for powering processors, DDR memory, and FPGAs. The device offers dual control loops, allowing independent operation of each loop with the ability to parallel the outputs for a higher 2 phase solution. This controller offers differential current sense and voltage sense for greater accuracy. The device supports DCR current sense or can accommodate an IMON signal from the DrMOS. The parts offer protection against overcurrent, over/undervoltage, and overtemperature protection.
  • Features
  • 4.5 V to 24 V input with internal bias - Optimized for 12 V and 5 V bus voltage designs
  • Adjustable output from 0.6 V to 5 V - Low voltage capability to power core voltages
  • Adjustable switching frequency from 200 kHz to 1.2 MHz - Allows optimization of design for size and efficiency
  • PWM output compatible to 3.3 V and 5 V DrMOS - Compatible with standard DrMOS
  • Differential output sense - Maintain voltage accuracy with high current design
  • Differential current sense - Allows DCR current sense (or from Iout of DrMOS)
  • Overcurrent, Over/Undervoltage, and Thermal protection - Protected against faults
  • Applications
  • High current designs
  • Core power rails
  • DDR Memory
  • FPGA power
  • End Products
  • Base stations
  • Networking
  • Routers
  • Power Modules
  • Technical Documentation & Design Resources
    Availability and Samples
    NCP81234MNTXG
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Multi-Phase Controller with Dual Loop Capability, Configurable, DrMOS Compatible
  • Package Type: QFN-28
  • Package Case Outline: 485BQ
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 5000
  • Specifications
  • Topology: Step-Down 
  • Phases:
  • Control Mode: Current/Voltage Mode 
  • VCC Min (V): 4.5 
  • VCC Max (V): 24 
  • fSW Typ (kHz): 200 - 1200 
  • Package Type: QFN-28 
  • ON Semiconductor Full Web Site