ACE724C

ACE724C 18V 2A Synchronous PFM/PWM Buck Converter Description The ACE724C is a high efficiency current-mode synchronous, 18V/2A buck converter. Its input voltage ranges from 3.5V to 18V and it provides an adjustable regulated output voltage from 0.923V to 15V while delivering up to 2A of output current. The internal synchronous switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is set to 340KHz. And the ACE724C will automatically switch between PFM and PWM mode based on the load current, thus to enhance the converter efficiency at light load. ACE724C consists of many protection block such as UVLO, input voltage over voltage protection to stand much higher input voltage spike, thermal protection and output short circuit protection. Features Adjustable Output Voltage, Vfb=0.923V Maximum output current is 2A Range of operation input voltage: Max 18V UVLO: 3.4V (typ.) Withstand input voltage spike >30V Standby current: 1mA (typ.) Operating current at zero load: 1.2mA (typ.) Line regulation: 0.1%/V (typ.) Load regulation: 10mV (typ.) High efficiency, up to 95% Environment Temperature: -20℃~85℃ Application Set-top-box Consumer Electronic Device for automobile LCD Monitor and LCD TV Portable DVD ADSL Modem, WLAN router Other 12V or double cell Li-ion battery powered device Absolute Maximum Ratings Parameter Symbol Value Unit Input voltage 30 V Ambien temperature Package thermal resist...