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AIC2848B

600kHz, 18V, 3A Synchronous AOT Step-Down Converter In SOT563

FEATURES
  • High Efficiency: Up to 93%(@3.3V)
  • 600kHz Frequency Operation
  • Up to 3.0A Output Current
  • Low RDS(ON) for internal switches:
  • 70mΩ/35mΩ(top/bottom)
  • 4.5V to 18V Input Voltage Range
  • 0.807V Reference
  • Current mode COT control to achieve fast
  • transient responses
  • Integrated internal compensation
  • Stable with Low ESR Ceramic Output Capacitors
  • Over Current Protection with Hiccup Mode
  • Thermal Shutdown
  • Inrush Current Limit and Soft Start
  • Available in SOT563-6 Package
APPLICATIONS
  • Digital Set Top Boxes
  • Flat Panel Television and Monitors
  • Notebook Computer
  • Wireless and DSL Modems
DESCRIPTION
The AIC2848B is a high efficiency 600kHz current mode constant on-time (CM-COT) control mode synchronous step-down DC-DC converter capable of delivering 3A current. AIC2848B 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 CMCOT architecture to achieve fast transient responses
for high voltage step down applications.
The AIC2848B requires a minimum number of readily available standard external components and is available in a space saving 6-pin SOT563-6 ROHS compliant package.
TYPICAL APPLICATION


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