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AAT1154IAS-1.0-T1 Datasheet(PDF) 1 Page - Advanced Analogic Technologies |
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AAT1154IAS-1.0-T1 Datasheet(HTML) 1 Page - Advanced Analogic Technologies |
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1 / 16 page  AAT1154 1MHz 3A Step-Down DC/DC Converter SwitchRegTM PRODUCT DATASHEET 1154.2007.11.1.7 1 www .analogictech.com General Description The AAT1154 SwitchReg is a step-down switching con- verter ideal for applications where high efficiency, small size, and low ripple are critical. Able to deliver 3A with an internal power MOSFET, the current-mode controlled IC provides high efficiency. Fully internally compensated, the AAT1154 simplifies system design and lowers exter- nal parts count. The AAT1154 is available in a Pb-free SOP-8 package and is rated over the -40°C to +85°C temperature range. Features • VIN Range: 2.7V to 5.5V • Fixed or Adjustable VOUT: 1.0V to 4.2V • 3A Output Current • Up to 95% Efficiency • Integrated Low On Resistance Power Switch • Internally Compensated Current Mode Control • 1MHz Switching Frequency • Constant Pulse Width Modulation (PWM) Mode • Low Output Ripple With Light Load • Internal Soft Start • Current Limit Protection • Over-Temperature Protection • SOP-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 INPUT 1.5 μH 120 μF LX VP FB GND AAT1154 VCC EN 10 μF 0.1 μF 100 Ω |
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