18V (30V spike) 2A Synchronous PFM/PWM Buck Converter
The ACE724 is a high efficiency current-mode synchronous, 18V/2A buck converter. Its input voltage
ranges from 4.5V 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 ACE724 will automatically switch between PFM
and PWM mode based on the load current, thus to enhance the converter efficiency at light load.
ACE724 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.
Adjustable Output Voltage, Vfb=0.923V
Maximum output current is 2A
Range of operation input voltage: Max 18V
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℃
Consumer Electronic Device for automobile
LCD Monitor and LCD TV
ADSL Modem, WLAN router
Other 12V or double cell Li-ion battery powered device
Absolute Maximum Ratings
Package thermal resistance
Max Operation junction temperature
Storage temperature range
Symbol Value Unit
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.