Controllers | NCP81172

2-Phase Synchronous Buck Controller with Integrated Gate Drivers and PWM VID Interface

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Overview

The NCP81172, a general−purpose two−phase synchronous buck controller, integrates gate drivers and PWM VID interface in a QFN−24 package and provides a compact−footprint power management solution for new generation computing processors. It receives power save command (PSI) from processors and operates in 1−phase diode emulation mode to obtain high efficiency in light−load condition. Operating in high switching frequency up to 800 kHz allows employing small size inductor and capacitors. The part is able to support all−ceramic−capacitor applications.

  • GPU and CPU Power
  • Graphics Card Applications
  • Desktop and Notebook Applications

  • Desktop and Notebook Application
  • GPU and CPU Power
  • Graphics Card Applications

  • 4.5 V to 24 V Input Voltage Range
  • Output Voltage up to 2.0 V with PWM VID Interface
  • Differential Output Voltage Sense
  • Integrated Gate Drivers
  • 200 kHz ~ 800 kHz Switching Frequency
  • Power Saving Interface (PSI)Power Saving Interface (PSI)Power Saving Interface (PSI)Power Saving InterPower Saving Interface (PSI)face (PSI)
  • Power Good Output
  • Programmable Over Current Protection
  • Over Voltage Protection
  • Under Voltage Protection
  • Temperature Sense and Alert Output
  • Thermal Shutdown Protection
  • QFN−24, 4 x 4 mm, 0.5 mm Pitch Package
  • This is a Pb−Free Device

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NCP81172MNTXG

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Active

CAD Model

Pb

A

H

P

QFN-24

485L-01

1

260

REEL

4000

N

Step-Down

2

Voltage Mode

4.5

24

200-800

$0.5323

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Reliability Data

Die Related Summary Data

Device: NCP81172MNTXG

Equivalent to wafer fab process: ONC25

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Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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