APW8879 Overview
Description
Wide Operating Range from +5.5V to +24V Input Voltages - Power-On-Reset Monitoring on VIN at 4.5V ~ 4.9V range - Built-in 100uA low quiescent current - Support IOUT = 8A Application - Built in PWM & PFM Control Schemes with COT architecture - Built in Integrated Bootstrap Forward P-CH MOSFET - Fixed Switching Frequency from 700KHz - Fixed 3.33V VOUT REF voltage with + 0.6% accuracy - Support Ultrasonic Mode selection on EN Pin - Support built-in fixed Soft Start time 2.4mS - Integrated 25mΩ N-Channel MOSFET For High Side MOS - Integrated 12mΩ N-Channel MOSFET For Low Side MOS - Built in Open-Drain Type POK function and EN control - 250 kHz CLK for External Charge Pump - Built in 3.3V/100mA LDO and Switch-over MOSFET with PWM output - UVP setting at 70%of VREF & OVP setting at 125% of VREF & Thermal Shutdown - Built in Over Current Protection and Current Limit Protection using high-side MOSFET RDS(on) and low-side MOSFET RDS(on) sensing - Flip-Chip TQFN 2x3-12P with Lead Free & RoHS compliant The APW8879 is a 8A, synchronous buck converter with integrated 25mΩ High-Side MOSFET and 12mΩ LowSide MOSFET. The APW8879 designed with a constant on-time control architecture can step down high voltage to accommodate low-voltage chipset for IMPV8 applications.
