ACE721G Datasheet, PDF (1/11 Pages) ACE Technology Co., LTD. – 5V 1A, 1.5MHz Synchronous Buck Converter

ACE721G
5V 1A, 1.5MHz Synchronous Buck Converter
Description
The ACE721G Series is a high-efficiency, DC-to-DC step-down switching regulators, capable of
delivering up to 1A of output current. The device operates from an input voltage range of 2.5V to 5.5V and
provides an output voltage from 0.6V to VIN, making the ACE721G Series 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
ACE721G Series 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. The ACE721G Series is available in a SOT23-5 Package.
Features
• High Efficiency: Up to 97%
• Capable of Delivering 1A
• 1.5MHz Switching Frequency
• No External Schottky Diode Needed
• Internal Compensation and Soft-Start
• Current Mode control
• 0.6V Reference for Low Output voltages
• Logic Control Shutdown (IQ<1uA)
• Thermal shutdown and UVLO
• Available in SOT23-5
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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