RT6220DH

® RT6220DH 6A, 23V, 500kHz, ACOTTM Synchronous Buck Converter General Description The RT6220DH is a synchronous Buck converter with Advanced Constant On-Time (ACOTTM) mode control, which provides a very fast transient response with no external compensators. The RT6220DH operates from 4.5V to 23V input voltage, provides complete protection functions including Over Current Protection (OCP), Under Voltage Protection (UVP) and Over Voltage Protection (OVP). This IC also provides a 1.5ms internal soft-start function and an open-drain power good indicator. Ordering Information RT6220DH Package Type QUF : UQFN-16L 3x3 (FC) (U-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Features  4.5V to 23V Input Voltage Range  Adjustable from 0.6V to 5V Output Range  500kHz Switching Frequency  ACOTTM Mode Performs Fast Transient Response  Integrated MOSFETs  31mΩ of High-Side MOSFET  20mΩ of Low-Side MOSFET  Supports MLCC Output Capacitors  Internal Soft-Start (1.5ms typ)  Built-in OVP/UVP/OCP  Power Good Indicator  Thermal Shutdown Applications  Laptop Computers  Tablet PCs  Networking Systems  Servers  Personal Video Recorders  Flat Panel Television and Monitors  Distributed Power Systems Simplified Application Circuit VIN Chip Enable CIN CEN VSYS RBYP CBYP VIN BOOT RT6220DH ...