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IC manufacturers Monolithic Power Systems

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reference designNB618

Monolithic Power Systems NB618

7A, 25V, 700KHz Step-Down Converter with Synchronizable Gate Driver

Overview

TopologyBuck Converter
Input voltage8-28 V
Switching frequency540-800 kHz
Output 13.3 V / 8 A
IC revision1.0

Description

The NB618 is a high frequency synchronous rectified step-down switch mode converter with a built in internal high side power MOSFET. It offers a very compact solution to achieve 7A continuous output current over a wide input, load and line range.

Current mode operation provides fast transient response and eases loop stabilization.

Full protection features include OCP and thermal shut down.

The NB618 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.

Features

  • -Only 9 External Components
  • -Wide 4.5V to 25V Operating Input Range
  • -7A Output Current
  • -Internal High Side Power MOSFET
  • -Fixed 700KHz Switching Frequency
  • -Sync from 300KHz to 2MHz External Clock
  • -Internal Compensation
  • -Power Good Output
  • -Integrated Bootstrap Diode
  • -OCP Protection and Thermal Shutdown
  • -Output Adjustable from 0.8V to 15V
  • -Available in 3mm x 4mm 14-pin QFN package
  • REMARK:L1=1.5uH or 1.4uH

Typical applications

  • Personal Video Recorders
  • Distributed Power Systems
  • Notebook Systems and I/O Power
  • Flat Panel Television and Monitors
  • Networking Systems
  • Digital Set Top Boxes

More information

Products

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Data­sheet
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Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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744311150
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.5 µH, 13.8 A
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance1.5 µH
Performance Rated Current13.8 A
Saturation Current @ 10%4.5 A
Saturation Current @ 30%14 A
DC Resistance6.6 mΩ
Self Resonant Frequency72 MHz
MaterialSuperflux 
Packaging Unit1000 
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