APW8724

APW8724 Common single PWM Controller with Multiform supply Voltage Features Adjustable Output Voltage from +0.6V to +5.0V - 0.6V Reference Voltage - +0.6% Accuracy General Description The APW8724 is a single-phase, constant on-time, synchronous PW M controller, which drives N-channel MOSFETs. The APW8724 steps down high voltage to generate low-voltage chipset, RAM supplies in notebook computers or mother board applications. The APW8724 provides excellent transient response and accurate DC voltage output in either PFM or PWM Mode. In Pulse Frequency Mode (PFM), the APW8724 provides very high efficiency over light to heavy loads with loadingmodulated switching frequencies. In PWM Mode, the converter works nearly at constant frequency for low-noise requirements. The unique ultrasonic mode maintains the switching frequency above 37kHz, which eliminates noise in audio application. APW8724 is built in remote sense function for applications that require remote sense. The APW8724 is equipped with accurate positive current limit, output under-voltage, and output over-voltage protections, perfect for multiform applications. The PowerOn-Reset function monitors the voltage on VCC to prevent wrong operation during power-on. The APW8724 has an internal 4ms digital soft start that ramps up the output voltage with programmable slew rate to reduce the startup current. The enable function can let user easy to apply APW8724. The APW8724 is available in 10pin TDFN 3x3 package respectively. ...