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AIC2972

2A, 75V, 200kHz Step-Down Converter

FEATURES
  • ƒÜ Wide 4.5V to 75V Operating Input Range
  • ƒÜ Output Adjustable from 0.8V to 50V
  • ƒÜ Standby Current 400ƒÝA
  • ƒÜ Power Save Mode at Light Load
  • ƒÜ Programmable Maximum Peak Current
  • ƒÜ 130m£[ Internal Power MOSFET Switch
  • ƒÜ 91.8% Efficiency at VIN=72V, VOUT=12V@1.2A
  • ƒÜ 81.4% Efficiency at VIN=72V, VOUT=5V@0.8A
  • ƒÜ Fixed 200kHz Frequency
  • ƒÜ Thermal Shutdown
  • ƒÜ Cycle-by-Cycle Over Current Protection
  • ƒÜ Available in SOP-8 Exposed Pad Package
APPLICATIONS
  • ƒÜ Balance Bike
  • ƒÜ Ebike
  • ƒÜ USB Power Supplies
DESCRIPTION
The AIC2972 is a monolithic step-down switch mode converter. It achieves 2A continuous out-put current over a wide input supply range with excellent load and line regulation.
The maximum peak current can be programmed by sensing current through an accurate sense resistor.
Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown.
The AIC2972 requires a minimum number of readily available standard external components. The AIC2972 is available in SOP-8 exposed pad package.
TYPICAL APPLICATION


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