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reference designNB681 | Demoboard EVNB681-D-00B

Monolithic Power Systems NB681 | Demoboard EVNB681-D-00B

26V, Low IQ, High Current Synchronous Buck Converter with 2-Bit VID Evaluation Board

Overview

TopologyBuck Converter
Input voltage4.5-26 V
Output 16 A
IC revision1.0

Description

The NB681 is a fully integrated high frequencysynchronous rectified step-down switch modeconverter with 2-Bit VID especially designed forV1.0A, VCCIO, PRIMCORE, EDRAM andEOPIO for IMVP8 applications. It offers verycompact solution to achieve 6A continuousoutput current and 7.5A peak output currentover a wide input supply range

Features

Wide 4.5V to 26V Operating Input Range

  • V1.0A/VCCIO/PCH/EDRAM/EOPIOcompatible for IMVP8
  • Output adjustable by 2-Bit VID
  • Low Power Mode/25uA low quiescentCurrent
  • 6A Continous Output Current
  • 7.5A Peak Output Current
  • Selectable Ultrasonic Mode
  • Adaptive COT for Fast transient
  • DC Auto Tune Loop
  • Stable with POSCAP and Ceramic Cap
  • 1% Reference Voltage
  • Internal Soft Start and Output Discharge
  • OCL, OVP, UVP Protection and ThermalShutdown
  • Latch off reset via EN or Power Cycle

Typical applications

  • Notebook Systems and Tablet PC
  • Networking Systems and Server
  • Personal Video Recorders
  • Distributed Power Systems

More information

Products

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Data­sheet
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Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
Operation Force(g)
Schematic
Packaging
SamplesAvailability & Sample
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744311068
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.68 µH, 20.9 A
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Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.68 µH
Performance Rated Current20.9 A
Saturation Current @ 10%9.5 A
Saturation Current @ 30%20 A
DC Resistance3.1 mΩ
Self Resonant Frequency105 MHz
MaterialSuperflux 
Packaging Unit1000 
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450301014042
SPECWS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm, –, –
Simu­lation–
Availability
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Downloads6 files

EDA models: Components ZIP

CAD files ZIP

Download all 6 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm
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Packaging Unit200 
Operation Force800 g
SchematicSPDT 
PackagingBulk 
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