AnalogicTech’s AAT1162 DC/DC converter’s low quiescent current lowers the system’s total stand-by mode current consumption, thereby improving total power efficiency and enabling designers to achieve green certifications. The AAT1162 is the first in a family of synchronous step-down DC/DC converters designed to operate from a 12V input and deliver up to 1.5A to 5V or lower outputs. Consuming a 115µA quiescent current, the converter reduces power usage for a range of 12V industrial applications as well as higher powered portable systems operating from dual-cell Lithium-ion/polymer batteries. The 12V step-down converter operates across an input range of 4.0V to 13.2V and delivers up to 1.5A of current. Output voltage is fixed or adjustable from 0.6V to VIN. Efficiency levels range up to 96%. A combined PWM/light load mode helps maximise efficiency over the entire load range. Operating at a 800kHz switching frequency, the AAT1162 uses small external components. Soft start control limits input surge current and eliminates output voltage overshoot at startup. The device also features current limit and over-temperature protection. The AAT1162 is manufactured in AnalogicTech’s ModularBCD process technology. The AAT1162 is qualified across the -40 to +85 degrees centigrade temperature range and comes in a Pb-free, 16-pin, 3x4mm TDFN package.