ACE721C_14 Datasheet, PDF (1/9 Pages) ACE Technology Co., LTD. – 1.2A 1.5MHz 7V Synchronous Buck Converter

ACE721C
1.2A 1.5MHz 7V Synchronous Buck Converter
Description
The ACE721C is a high-efficiency, DC-to-DC step-down switching regulators, capable of delivering up to
1.2A of output current. The device operates from an input voltage range of 2.6V to 7.0V and provides an
output voltage from 0.6V to VIN, making the ACE721C ideal for low voltage power conversions. Running
at a fixed frequency of 1.5MHz allows the use of small external components, such as ceramic input and
output caps, as well as small inductors, while still providing low output ripples. This low noise output along
with its excellent efficiency achieved by the internal synchronous rectifier, making ACE721C an ideal
green replacement for large power consuming linear regulators. Internal soft-start control circuitry reduces
inrush current. Short-circuit and thermal-overload protection improves design reliability.
Features
 High Efficiency: up to 95%
 Capable of Delivering 1.2A
 1.5MHz Switching Frequency
 No External Schottky Diode Needed
 Low dropout 100% Duty operation
 Internal Compensation and Soft-Start
 Current Mode control
 0.6V Reference for Low Output Voltages
 Logic Control Shutdown (IQ<1uA)
 Thermal shutdown and UVLO
Application
 Cellular phones
 Digital Cameras
 MP3 and MP4 players
 Set top boxes
 Wireless and DSL Modems
 USB supplied Devices in Notebooks
 Portable Devices
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