DESCRIPTION
RS2543 is a highly integrated current mode PWM power switch. It built in patent High voltage startup, optimized for high performance, exhibit extra low standby power consumption (<30mW) and costs effective offline flyback converter applications.

FEATURES
• Built-in 700V high voltage startup
• Patent high voltage startup technique
• Extra low standby (<30mW)
• Integrated with HV MOSFET
• Power on soft startup
• Frequency spreading to minimize EMI
• Audio noise free operation
• Fixed 65KHz switching frequency
• Comprehensive protection
   - VDD under voltage lockout with hysteresis
      (UVLO)
   - Cycle-by-Cycle over current protection (OCP)
   - Overload protection (OLP) with auto-recovery
   - Over temperature protection (OTP) with
      auto-recovery
   - VDD over voltage protection (OVP) with
      auto-recovery

APPLICATIONS
• Offline AC/DC flyback converter for
• AC/DC adapter
• PDA power supplies
• Digital cameras and camcorder adapter
• VCR, SVR, STB, DVD&DVCD player SMPS
• Set-Top box power
• Auxiliary power supply for PC and server
• Open-frame SMPS