NCP5381A: 2/3/4 Phase Buck Controller

Datasheet: 2/3/4 Phase Buck Controller
Rev. 5 (388.0kB)
Product Overview
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NCP5388 is a two-three or four phase buck controller which combines differential voltage and current sensing, and adaptive voltage positioning to power Intel's most demanding Pentium IV ® processors and low voltage, high current power supplies. Dual edge pulse width modulation (PWM) combined with inductor current sensing reduces system cost by providing the fastest initial response to transient loads thereby requiring less bulk and ceramic output capacitors to satisfy transient load-line requirements. A high performance operational error amlifer is provided, which allows easy compensation of the system. The proprietary method of Dynamic Reference Injection (patented) makes the error amplifer compensation virtually independent of hte sytem response to VID changes, eliminating the need for tradoffs between load transients and Dynamic VID performance.
Features   Benefits
  • Meets Intels vR10.0, 10.1, 10.2 and 11.0 Specifications
  • Versatility
  • Dual Edge PWM Modulation
  • Fast initial response to Transient Loading
  • Dynamic Reference Injection (Patented)
  • Faster response time and easier to compensate
  • +/-0.5% System Voltage Accuracy
  • High Performance device targeted for high tolerance systems
Applications   End Products
  • Pentium IV Processors
  • VRM Modules
  • Graphics Cards
  • Low Voltage, High Current Power Supplies
  • Desktop
  • VRM Modules
  • Graphic Cards
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Budgetary Price/Unit
Case Outline
NCP5381AMNR2G Obsolete
Halide free
NCP5381A QFN-40 488AG 1 260 Tape and Reel 2500  
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