Product category:
Power Supply ICs and Controllers
News Release from: Advanced Analogic Technologies | Subject: AAT1123 and AAT1143
Edited by the Electronicstalk Editorial
Team on 19 September 2005
Step-down convertors have smaller
footprints
Two extremely small 1MHz step-down convertors offer designers new options for reducing device footprint.
Developer of power management semiconductors for mobile consumer electronic devices AnalogicTech has introduced two extremely small 1MHz step-down convertors Even though saving space is a top priority in portable systems, designers often have to compromise by using a large package when they specify a step-down convertor with high output current levels
This article was originally published on Electronicstalk on 16 Jun 2004 at 8.00am (UK)
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By offering 400 and 600mA in a tiny, space-saving 2.0 x 2.1mm SC70JW-8 package, the convertors offer designers new options for reducing device footprint.
AnalogicTech's AAT1123 and AAT1143 supply 600 and 400mA maximum output current, respectively, while maintaining a low, 25uA no load quiescent current.
Both devices support an input voltage range of 2.7 to 5.5V and output as low as 0.6V.
The devices are available in either a fixed version with internal feedback or a programmable version with an external feedback resistor.
Their 1MHz switching frequency helps minimise external component size while keeping switching losses to a minimum.
The AAT1123 also features a fast 100us (typical) turn-on time.
Efficiency levels for the AAT1123 and AAT1143 range up to 97 and 95%, respectively.
The step-down convertors also feature soft start, overtemperature and current limit protection, 100% duty cycle low-dropout operation, and 0.1uA shutdown current.
The AAT1123 and AAT1143 are rated over the -40 to +85C temperature range, and samples are available now.
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