Datasheet4U Logo Datasheet4U.com

NCP81172 - 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 13 TSNS 14 TALERT# 15 VCC 16 PGOOD 17 HG2 18 BST2 19 PH2 20 LG2 21 PVCC 22 PGND 23 LG1 24 PH1 25 THERM/GND Type Analog Power Analog Output Logic Input Logic Input Logic Input Analog Output Analog Input Analog

Features

  • 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 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.

📥 Download Datasheet

Datasheet Details

Part number NCP81172
Manufacturer onsemi
File Size 561.35 KB
Description 2-Phase Synchronous Buck Controller
Datasheet download datasheet NCP81172 Datasheet

📁 Similar Datasheet

Other Datasheets by ON Semiconductor
  • NCP81174 - 4/3/2-Phase Synchronous Buck Controller
  • NCP81174N - 4/3/2-Phase Synchronous Buck Controller
  • NCP81178 - Secondary Synchronous Rectifier Driver
  • NCP81105 - 1/2/3 Phase Power Controller
  • NCP81105H - 1/2/3 Phase Power Controller
  • NCP81111 - 3 Phase VR12.5-6 High Speed Digital Controller
  • NCP81119 - Multiple-Phase Controller
  • NCP81119A - Multiple-Phase Controller

Full PDF Text Transcription

Click to expand full text
NCP81172 2-Phase Synchronous Buck Controller with Integrated Gate Drivers and PWM VID Interface 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. Features  4.5 V to 24 V Input Voltage Range  Output Voltage up to 2.
Published: |