APW8731C

APW8731C Dual-Phase COT Buck PWM Controller Features  Support Wide Input Voltage Range from 5.4V to 24V  VCC Support Range from 4.5V to 5.5V  Integrated High-side MOSFET Driver with Integrated Bootstrap P-CHMOSFET  Drive N-CH MOSFET with built in Adaptive Dead Time Control Scheme  Support Single-PFM, Two Phase PWM, and Ultra -sonic PFM mode  PWM Switching Frequency 500KHz ~700KHz by FSpin  Built in Constant On Time PWM Control with Current Balance Operation  Support Single and Two Phase PWM Control by LGATE2 & PSI Voltage Setting  Built in Adjustable Over Current Protection by LGATE1 Setting.  Built in Under Voltage Protection with Latch off Mode  Built in Over Voltage Protection with Latch off Mode  Built in Over Temperature Protection  Individual EN & POK indicator  Built in VID for VOUT adjustment  Built in decay down mode.  TQFN 4x4-24 Package General Description The APW8731C is a dual-phase PWM control IC which provides a precision voltage regulation system and supports wide input range from 5.4V to 24V. By integrating dual-phase power MOSFET drivers and controller into the one IC, APW8731C can reduce the number of external components for a cost and space saving power management solution. The APW8731C's PWM controller adopts constant on time architecture which has the trait of excellent transient resposnse. The PWM controller features automatic phase reduction that can either operates in dual-phase mode or single-phase mode, depending on resistor setti...