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AAT1121

AAT
Part Number AAT1121
Manufacturer AAT
Description Step-Down Converter
Published Apr 30, 2007
Detailed Description AAT1121 1.5MHz, 250mA Step-Down Converter General Description The AAT1121 SwitchReg is a 1.5MHz step-down converter with...
Datasheet PDF File AAT1121 PDF File

AAT1121
AAT1121

Overview
AAT1121 1.
5MHz, 250mA Step-Down Converter General Description The AAT1121 SwitchReg is a 1.
5MHz step-down converter with an input voltage range of 2.
7V to 5.
5V and output as low as 0.
6V.
Its low supply current, small size, and high switching frequency make the AAT1121 the ideal choice for portable applications.
The AAT1121 delivers 250mA of load current, while maintaining a low 30µA no load quiescent current.
The 1.
5MHz switching frequency minimizes the size of external components, while keeping switching losses low.
The AAT1121 feedback and control delivers excellent load regulation and transient response with a small output inductor and capacitor.
The AAT1121 is available in a Pb-free, 8-pin, 2x2mm TDFN or STDFN package and is rated over the -40°C to +85°C temperature range.
Features • • • • • • • • • • • • • SwitchReg™ VIN Range: 2.
7V to 5.
5V VOUT Range: 0.
6V to VIN 250mA Max Output Current Up to 96% Efficiency 30µA Typical Quiescent Current 1.
5MHz Switching Frequency Soft-Start ...


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