Step-Down Converter Helps Backplane-based Equipment Designers Meet Environmental Standards
Advanced Analogic Technologies Inc. announced the AAT1160, a synchronous step-down DC/DC converter delivering up to 3A output from a 12V input. The device operates across a wide 4V to 13.2V input voltage range. It supplies a load current up to 3A with a fixed or adjustable output voltage which can be regulated to as low as 0.6V. The device supports efficiency levels up to 96 percent. and consumes 150 µA no-load quiescent current, according to the company. The user can select to operate the device in a forced Pulse Width Modulation (PWM) mode and synchronize the switching to an external signal to control switching noise. The high 800 kHz switching frequency also minimizes total size by allowing the use of small external components. A soft start function limits input surge current and eliminates output voltage overshoot when the device is turned on. The AAT1160 also features short-circuit and over-temperature protection. The AAT1160 operates across the -40°C to +85°C temperature range and is available in a lead free, 16-pin 3 mm × 4 mm TDFN package. It sells for $1.82 in 1K quantities.
Advanced Analogic Technologies Inc.