Features􀂃 Constant-Voltage (CV) and Constant-current (CC)Control without Secondary-feedback Circuitry􀂃 Green Mode PWM Frequency Linearly Decreasing􀂃 Fixed PWM Frequency at 42kHz with FrequencyHopping to Solve EMI Problem􀂃 Low Startup Current: 10μA􀂃 Low Operating Current: 3.5mA􀂃 Peak-Current-Mode Control in CV Mode􀂃 Cycle-by-Cycle Current Limiting􀂃 VDD Over-Voltage Protection with Auto-Restart􀂃 VDD Under-Voltage Lockout (UVLO)􀂃 Gate Output Maximum Voltage Clamped at 18V􀂃 Fixed Over-temperature Protection with Latch􀂃 SOP-8 Package AvailableApplications􀂃 Battery chargers for cellular phones, cordlessphones, PDA, digital cameras, power tools􀂃 Replaces linear transformer and RCC SMPS