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
VER 1.3
1
ACE [ ACE TECHNOLOGY CO., LTD. ]
