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AAT1150IKS-2.5-T1 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT1150IKS-2.5-T1 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 17 page  SwitchReg™ AAT1150 1MHz 1A Step-Down DC/DC Converter 1150.2006.09.1.5 1 General Description The AAT1150 SwitchReg™ is a step-down switch- ing converter ideal for applications where high effi- ciency, small size, and low ripple are critical. Able to deliver 1A with internal power MOSFETs, the current-mode controlled IC provides high efficiency using synchronous rectification. Fully internally compensated, the AAT1150 simplifies system design and lowers external parts count. The AAT1150 is available in a Pb-free MSOP-8 package and is rated over the -40°C to +85°C tem- perature range. Features •VIN Range: 2.7V to 5.5V • Up to 95% Efficiency • 110m Ω RDS(ON) MOSFET Switch • <1.0μA of Shutdown Current • 1MHz Switching Frequency • Fixed or Adjustable VOUT: 1.0V to 4.2V • High Initial Accuracy: ±1% • 1.0A Peak Current • Integrated Power Switches • Synchronous Rectification • Internally Compensated Current Mode Control • Constant PWM Mode for Low Output Ripple • Internal Soft Start • Current Limit Protection • Over-Temperature Protection • MSOP-8 package • -40°C to +85°C Temperature Range Applications • Cable/DSL Modems • Computer Peripherals • High Efficiency Conversion From 5V or 3.3V Supply • Network Cards • Set-Top Boxes Typical Application OUTPUT 4.1 μH 3x 22 μF 10 μF 0.1 μF 100 Ω LX VP INPUT FB SGND AAT1150 ENABLE VCC PGND |
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