KP3282

Fixed 18V Output

Integrated with 650V 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

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 and DIP-8 Package

 

KP328X_REV1.11_EN

KP328X 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  KP328X  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.

KP328X  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.