KP3116
Integrated with 700V Power MOSFET and HV Startup Circuit
Multi-Mode Control with Audio Noise Free Operation
Supports Flyback, Buck and Buck–Boost Topologies
Support Ultra–low Input Voltage (>20V) Less than 100mW Standby Power
Up to 40kHz Maximum Frequency
Good Line and Load Regulation
Built-in Soft Start
Build in Protections:
Over Load Protection (OLP)
Cycle-by-Cycle Current Limiting (OCP)
Abnormal Over Current Portection (AOCP)
Output OVP
On-chip OTP
Available with SOP-8 Package

KP3116 is a high performance Switch Mode
Power Supply Switcher for low power off-line application with minimum components in typical buck solution. This IC has built-in high break down voltage MOSFET to withstand high surge input.
Unlike conventional PWM control, there’s no fixed internal clock in KP3116 to trigger the GATE driver, the switching frequency is changed according to the load condition. The multi-mode PWM control is integrated to simplify circuit design and achieve good line and load regulation without audio noise generated. The peak current limit changes according to the real load condition for low standby power in no load.
KP3116 integrates functions and protections of Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Abnormal Over Current Portection (AOCP), Output OVP, On-chip Thermal Shutdown, Over Load Protection (OLP) with Auto Recovery Mode Protection, etc.
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