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 PT1203S-2A,18V,350KHz Synchronous Step-Down Converter  DataSheet GENERAL DESCRIPTIONThe PT1203 is a monolithic pulse-width-modulated (PWM) synchronous step-down switch mode regulator with two internal power MOSFETs. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limit and thermal shutdown.
 The PT1203 requires a minimum number of external components, available in SOP-8 and ESOP-8 package.
 FEATURES 2A Output Current
 0.13Ω Internal Power MOSFET Switch
 Stable with Low ESR Output Ceramic Capacitors
 Up to 93% Efficiency
 Fixed 350KHz Frequency
 Thermal Shutdown
 Cycle-by-Cycle Over Current Protection
 Wide 4.75V to 18V Operating Input Range
 Output Adjustable from 0.923V to 15V
 Available in 8-Pin SOP8 Packages
  
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