DATA SHEET
AAT2749
3.
0MHz Step-Down Converter and Low-VIN LDO
General Description
The AAT2749 is a two channel power
regulator that operates from 2.
3V to 5.
5V.
The AAT2749 contains a 3.
0MHz, 600mA step-down converter and a low input voltage 300mA LDO
regulator.
The step-down converter can deliver 600mA of load current.
The 3.
0MHz switching frequency minimizes the size of external components while keeping switching losses low.
The AAT2749 step-down converter maintains high efficiency throughout the operating range, which is critical for portable applications.
Fixed frequency, low noise operation can be forced by a logic signal on the MODE pin.
The AAT2749 also contains a 300mA LDO
regulator...