1MHz 1A Synchronous Buck DC/DC Converter

Manufacturer's part number :

AAT1150IKS-1.0-T1

NATO number :

AAT1150

Manufacturer Skyworks

Skyworks

Description :

The AAT1150 is a step-down, SwitchReg™, switching converter ideal for applications where high efficiency, 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 temperature range.

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    Features

    • VIN Range: 2.7V to 5.5V
    • Up to 95% Efficiency
    • 110mΩ RDS(ON) MOSFET Switch
    • <1.0μA of Shutdown Current
    • 1MHz Switching Frequency
    • 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

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Features Similar products
Control scheme Internally Compensated Current Mode Control  

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Switching frequency (kHz) 1000  
Max Input Voltage (V) 2.7 to 5.5  
Output Voltage (V) 1 to 4.2  
Typ. Active Current (µA) 160  
Output Capacitor Type Three 22 μF 6.3 V, X5R Capacitors  
Output Current (mA) 1000  
Operating Temperature (°C) -40 to +85  
Package MSOP-8