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AT1366B fiches techniques PDF

Aimtron Technology - 800mA Synchronous Buck Converter

Numéro de référence AT1366B
Description 800mA Synchronous Buck Converter
Fabricant Aimtron Technology 
Logo Aimtron Technology 





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AT1366B fiche technique
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AT1366B
Preliminary Product Information
1MHz,800mA Synchronous Buck Converter
Features
• High efficiency (95%) possible
• No Schottky Diode Required
• 800mA Output Current at 5V input 3.3V output
• Oscillation frequency 1.0MHz
• Built-in ON/OFF Function
• Built-in Short Circuit Protection
• Low Dropout Operation: 100% Duty Cycle
• Stand-by current max. 1µA
• Input voltage: 2.5V ~5.5V
Applications
• Power Supply for portable devices
General Description
The AT1366B provides complete control for a
DC/DC converter optimized for high-performance
microprocessor applications. It is operated on
current mode architecture for excellent line and
load transient response. 1MHz operation frequency
is allowing the use of small surface mount inductor
and capacitor. The internal synchronous switch
increases efficiency and eliminates the need for an
external Schottky diode. The AT1366 is a family
of low-noise synchronous step-down DC/DC
converters that is ideally suited for systems
powered from a 1-cell Li-ion battery or from a
3-cell to 4-cell NiCd, NiMH, or alkaline battery. It
can also be used to USB-Based power system.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879
WWW: http://www.aimtron.com.tw
1/18/2006 REV:1.2
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