DatasheetsPDF.com

NCP81142

ON Semiconductor
Part Number NCP81142
Manufacturer ON Semiconductor
Description Multiple-Phase Controller
Published Jul 31, 2015
Detailed Description NCP81142 Multiple-Phase Controller with SVID Interface for Desktop and Notebook CPU Applications The NCP81142 Multi...
Datasheet PDF File NCP81142 PDF File

NCP81142
NCP81142


Overview
NCP81142 Multiple-Phase Controller with SVID Interface for Desktop and Notebook CPU Applications The NCP81142 Multi−Phase buck solution is optimized for www.
onsemi.
com Intel® VR12.
5 compatible CPUs with user configurations of 4/3/2/1 phases.
The controller combines true differential voltage sensing, differential inductor DCR current sensing, input voltage MARKING DIAGRAM feed−forward, and adaptive voltage positioning to provide accurately regulated power for both Desktop and Notebook applications.
The control system is based on Dual−Edge pulse−width modulation (PWM) combined with DCR current sensing providing the fastest 1 QFN32 CASE 485CD NCP 81142 ALYWG G initial response to dynamic load events at reduced system cost.
It has the capability to shed to single phase during light load operation and can auto frequency scale in light load conditions while maintaining excellent transient performance.
High performance operational error amplifiers are provided to simplify compensation of the system.
Patented Dynamic Reference Injection further simplifies loop compensation by eliminating the need A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) to compromise between closed−loop transient response and Dynamic VID performance.
Patented Total Current Summing provides highly accurate digital current monitoring.
Features ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 19 of this data sheet.
• Meets Intel VR12.
5 Specifications • Current Mode Dual Edge Modulation for Fastest Initial Response to Transient Loading • High Performance Operational Error Amplifier • Digital Soft Start Ramp • Dynamic Reference Injection • Accurate Total Summing Current Amplifier • Dual High Impedance Differential Voltage and Total • Power Saving Phase Shedding Current Sense Amplifiers • Phase−to−Phase Dynamic Current Balancing • “Lossless” DCR C...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)