KP15051

Integrated with 500V Power MOSFET and HV Startup Circuit

Optimize Audible  Noise,  Improve System Stability

Multi-Mode Control with Audio Noise Free Operation

Supports       Buck       and       Buck-Boost Topologies

Default 12V Output with FB floated

Less than 50mW Standby Power

Green Mode Operation for High Efficiency 

Good Line and Load Regulation

Built-in Soft Start

Build in Protections:

Over Load Protection (OLP)

Cycle-by-Cycle Current Limiting (OCP)

Output OVP

VDD OVP, UVLO & Clamp

Available with SOP-8 Package

KP1505X_REV1.05_EN

KP1505X family is a high performance Switch Mode Power Supply Switcher for low power off- line application with minimum components in typical buck solution. This family has built-in high break down voltage MOSFET to withstand high surge input.

Unlike conventional PWM control, there’s no fixed internal  clock  in  KP1505X  family  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.

KP1505X  integrates functions  and  protections  of Under  Voltage   Lockout  (UVLO),  Cycle-by-cycle Current   Limiting  (OCP),   Output  OVP,  On-chip Thermal Shutdown, Over Load Protection (OLP), VDD  OVP with Auto  Recovery  Mode  Protection, etc.