Dual 400mA High Frequency Step-Down DC/DC Converter

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Manufacturer Skyworks


Description :

The AAT2512 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a dual channel synchronous buck converter operating with an input voltage range of 2.7V to 5.5V, making it ideal for applications with single-cell lithium-ion/polymer batteries. Both regulators have independent input and enable pins. Offered with fixed or adjustable output voltages, each channel is designed to operate with 27μA (typical) of quiescent current, allowing for high efficiency under light load conditions. The AAT2512 requires only three external components (CIN, COUT, and LX) for each converter, minimizing cost and real estate. Both channels are designed to deliver 400mA of load current and operate with a switching frequency of 1.4MHz, reducing the size of external components. The AAT2512 is available in a Pb-free, 12-pin TDFN33 package and is rated over the -40°C to +85°C temperature range.

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    • VIN Range: 2.7V to 5.5V
    • Output Current:
    • Channel 1: 400mA
    • Channel 2: 400mA
    • 98% Efficient Step-Down Converter
    • Integrated Power Switches
    • 100% Duty Cycle
    • 1.4MHz Switching Frequency
    • Internal Soft Start
    • 150μs Typical Turn-On Time
    • Over-Temperature Protection
    • Current Limit Protection
    • Available in TDFN33-12 Package
    • -40°C to +85°C Temperature Range

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Features Similar products
Control scheme Slope Compensated Peak Current Mode Control  

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Switching frequency (kHz) 1400  
Max Input Voltage (V) 2.7 to 5.5  
Output Voltage (V) 0.6 to 5.5  
Typ. Active Current (µA) 27  
Output Capacitor Type 4.7 to 10 μF, X5R or X7R Ceramic Capacitor  
Output Current (mA) 400  
Operating Temperature (°C) -40 to +85  
Package TDFN33-12