1MHz 2.5A Step-Down DC/DC Converter

Manufacturer's part number :

AAT1155IKS-1.0-T1

NATO number :

AAT1155

Manufacturer Skyworks

Skyworks

Description :

The AAT1155 is a step-down, SwitchReg™, switching converter ideal for applications where high efficiency, small size, and low ripple are critical. Able to deliver 2.5A with an internal power MOSFET, the current-mode controlled IC provides high efficiency. Fully internally compensated, the AAT1155 simplifies system design and lowers external parts count. The AAT1155 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

    • 5.5V Max Supply Input
    • Adjustable VOUT: 1.0V to 4.2V
    • 2.5A Output Current
    • Up to 95% Efficiency
    • Integrated Low On-Resistance Power Switches
    • 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
    • MSOP-8 Package
    • -40°C to +85°C Temperature Range

    How wireless works

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) 630  
Output Capacitor Type 200 μF, Ceramic Capacitor  
Output Current (mA) 2500  
Operating Temperature (°C) -40 to +85  
Package MSOP-8