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AAT2513

AAT
Part Number AAT2513
Manufacturer AAT
Description Dual 600mA Step-Down Converter
Published Apr 30, 2007
Detailed Description AAT2513 Dual 600mA Step-Down Converter with Synchronization General Description The AAT2513 is a high efficiency dual sy...
Datasheet PDF File AAT2513 PDF File

AAT2513
AAT2513

Overview
AAT2513 Dual 600mA Step-Down Converter with Synchronization General Description The AAT2513 is a high efficiency dual synchronous step-down converter for applications where power efficiency, thermal performance and solution size are critical.
Input voltage ranges from 2.
7V to 5.
5V, making it ideal for systems powered by single-cell lithium-ion/polymer batteries.
Each converter is capable of 600mA output current and has its own enable pin.
Efficiency of the converters is optimized over full load range.
Total no load quiescent current is 60µA, allowing high efficiency even under light load conditions.
The integrated power switches are controlled by pulse width modulation (PWM) with a 1.
7MHz typical switching frequency at full load, which minimizes the size of external components.
Fixed frequency, low noise operation can be forced by a logic signal on the MODE pin.
Furthermore, an external clock can be used to synchronize the switching frequency of both converters.
Features • • SystemPower™ • • • • • • • • • • • • VIN Range: 2.
7V to 5.
5V Output Current: — Channel 1: 600mA — Channel 2: 600mA 96% Efficient Step-Down Converter Low No Load Quiescent Current — 60µA Total for Both Converters Integrated Power Switches 100% Duty Cycle 1.
7MHz Switching Frequency Optional Fixed Frequency or External SYNC Logic Selectable 180° Phase Shift Between the Two Converters Current Limit Protection Automatic Soft-Start Over-Temperature Protection QFN33-16 Package -40°C to +85°C Temperature Range A phase shift pin (PS) is available to operate the www.
DataSheet4U.
com Applications two converters 180° out of phase at heavy load to achieve low input ripple.
• Cellular Phones / Smart Phones The AAT2513 is available in a Pb-free, thermally • Digital Cameras enhanced 16-pin QFN33 package and is specified • Handheld Instruments for operation over the -40°C to +85°C temperature • Micro Hard Disc Drives range.
• Microprocessor / DSP Core / IO Power • PDAs and Handheld Computers Typical Applica...


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