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NCP81278 - Compact 2-Phase Synchronous Buck Controller

Description

Pin Name 1 BST1 2 HG1 3 EN 4 PSI 5 VID 6 VIDBUF 7 REFIN 8 VREF 9 FS 10 FBRTN 11 FB 12 COMP/ILMT 13 PGOOD 14 HG2 15 BST2 16 PH2 17 LG2 18 PVCC 19 LG1 20 PH1 21 THERM/GND Type Analog Power Analog Output Logic Input Logic Input Logic Input Analog Output Analog Input Analog Output Analog Input Analog I

Features

  • 3.6 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).
  • Support both 3.3 V and 1.8 V VID.
  • Power Good Output.
  • Programmable Over Current Protection.
  • Over Voltage Protection.
  • Under Voltage Protection.
  • Thermal Shutdown Protection.

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Datasheet preview – NCP81278

Datasheet Details

Part number NCP81278
Manufacturer onsemi
File Size 193.64 KB
Description Compact 2-Phase Synchronous Buck Controller
Datasheet download datasheet NCP81278 Datasheet
Additional preview pages of the NCP81278 datasheet.

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Full PDF Text Transcription

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NCP81278 Compact 2-Phase Synchronous Buck Controller with Integrated Gate Drivers and PWM VID Interface The NCP81278, a general−purpose two−phase synchronous buck controller, integrates gate drivers and PWM VID interface in a QFN−20 package and provides a compact−footprint power management solution for new generation computing processors. It has a programmable power save interface (PSI) and is able to operate 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. Features • 3.6 V to 24 V Input Voltage Range • Output Voltage up to 2.
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