Product category:
Power Supply ICs and Controllers
News Release from: Advanced Analogic Technologies | Subject: AAT1160
Edited by the Electronicstalk Editorial
Team on 24 January 2008
Convertor copes with green energy
standards
Synchronous step-down DC/DC convertor offers power savings in a variety of industrial applications, especially those using backplanes.
New from AnalogicTech, the AAT1160 is a synchronous step-down DC/DC convertor that delivers up to 3A output from a 12V input Combining high power efficiency levels and a very low 150uA quiescent current, the AAT1160 offers power savings in a variety of industrial applications, especially those using backplanes, as well as portable systems running off two-cell lithium-ion batteries
This article was originally published on Electronicstalk on 16 Jun 2004 at 8.00am (UK)
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By capitalising on AnalogicTech's proprietary ModularBCD process technology, minimising quiescent current consumption and using a synchronous design, the AAT1160 delivers significant power savings to tightly packed rack-mounted backplane-based systems such as telecommunications switches, cellular basestations and server farms.
The AAT1160 current-mode, step-down DC/DC convertor operates across a wide 4 to 13.2V input voltage range.
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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%.
Leveraging AnalogicTech's extensive expertise in portable applications, the AAT1160 also consumes an industry-leading low 150uA no-load quiescent current.
The AAT1160 maintains high efficiency over the entire load range.
The user can select to operate the device in a forced pulsewidth modulation (PWM) mode and synchronise the switching to an external signal to control switching noise.
The high 800kHz switching frequency also minimises total solution sise 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 overtemperature protection.
The AAT1160's excellent performance and low power consumption is also a product of AnalogicTech's Modular BCD process technology.
Compared with linear-IC legacy fabs and generic digital CMOS foundries, ModularBCD provides more cost-effective, modular fabrication of analogue, power and mixed-signal ICs by monolithically integrating fully isolated CMOS at multiple voltages, complementary bipolar transistors and robust power devices.
This process avoids complex and expensive techniques such as epitaxy and high-temperature diffusion.
Devices manufactured in ModularBCD offer higher efficiency, smaller sise and higher levels of integration than those fabricated in many other processes.
They also offer designers better ability to manage power and extend battery life in a wide range of mobile consumer electronics products such as cellphones, portable media players, tablet and laptop computers and digital cameras.
Qualified across the -40 to +85C temperature range, the AAT1160 is available in a Pb-free, 16-pin 3 x 4mm TDFN package.
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