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AIC2843TB

600kHz 18V 3A Synchronous AOT TSOT23-6 Step-Down Converter

FEATURES
  • 70mΩ/35mΩ Low RDS(ON) Internal FETs
  • High Efficiency Synchronous-Mode Opera-tion
  • Wide Input Range:4.5V to 18V
  • Output Voltage from 0.765V
  • 600kHz Switch Frequency
  • Up to 3A, 3.5A@1.2V Output Current
  • AOT control to achieve fast transient re-sponses
  • Power Save Mode at Light Load
  • Integrated Internal Compensation
  • Stable with Low ESR Ceramic Output Capac-itors
  • Over Current Protection with Hiccup Mode
  • Thermal Shutdown
  • Inrush Current Limit and Soft Start
  • Build in Input Over Voltage Protection
  • Available in TSOT23-6 Package
APPLICATIONS
  • Digital Set Top Boxes
  • Flat Panel Television and Monitors
  • Notebook Computer
  • Wireless and DSL Modems
DESCRIPTION
The AIC2843TB is a high efficiency 600kHz, Adaptive On-Time (AOT) control mode synchro-nous step-down DC-DC converter capable of de-livering up to 3A current. AIC2843TB integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor size are achieved with 600kHz switching frequency. It adopts the AOT architec-ture to achieve fast transient responses for high voltage step down applications.
The AIC2843TB requires a minimum number of readily available standard external components and is available in a 6-pin TSOT23-6 ROHS compliant package.
TYPICAL APPLICATION


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