AAT2784

SystemPowerTM PRODUCT DATASHEET AAT2784 3-Channel Step-Down DC/DC Converter General Description The AAT2784 is a 3-channel 1.8MHz step-down converter for applications where power efficiency and solution size are critical. The input voltage range is 2.7V to 5.5V and the outputs are adjustable from 0.6V to VIN. Channel 3 delivers up to 1.5A output current and channels 1 and 2 deliver up to 300mA each. The AAT2784 uses a high switching frequency to minimize the size of external components. The AAT2784 requires a minimum of external components to realize a high efficiency tripleoutput buck converter minimizing solution cost and PCB footprint. Each of the 3 regulators has an independent enable pin, adjustable output voltage and operates with low no load quiescent current, providing high efficiency over the entire load range. The AAT2784 is available in a Pb-free 16 pin TDFN34 package, and is rated over the -40°C to +85°C operating temperature range. Typical Application Features VIN Range: 2.7 to 5.5V Output Voltage Range: 0.6V to VIN Output Current: ▪ Channel 3: 1.5A ▪ Channel 1: 300mA ▪ Channel 2: 300mA Highly Efficient Step-Down Converters Low RDS(ON) Integrated Power Switches 100% Duty Cycle 1.8 MHz Switching Frequency Internal Soft Start Fast 150μs Turn-On Time Over-Temperature Protection Current Limit Protection TDFN34-16 Package -40°C to 85°C Temperature Range Applications Cellular and Smart Phones Digital Cameras Handheld Instruments Mas...