低電圧、絶縁型DC-DCコンバータ用、0.5%精度、0.6Vシャントレギュレータ
SUNNYVALE, CA-September 25, 2002-Maxim Integrated Products (NASDAQ: MXIM) introduces the MAX8515A and MAX8515, the smallest sub-1V shunt references for optical networks and modules. These devices simplify the voltage feedback and overvoltage protection functions in high-accuracy, sub-1V isolated DC-DC converters. Their ultra-compact 2mm x 2mm SC70 and small SOT23 packages save space.
The MAX8515's 1.7V to 28V input range allows operation from an unregulated supply. Unlike traditional shunt regulators, the supply voltage and feedback of the MAX8515A/MAX8515 are independent of the shunt-regulator stage, allowing it to sink currents even at very low output voltages.
The MAX8515A regulates the output voltage with ±0.5% initial accuracy and ±1% accuracy over the -40°C to +85°C temperature range. The MAX8515 regulates the output voltage with ±1% initial accuracy and ±1.8% accuracy over the -40°C to +85°C temperature range.
The MAX8515A/MAX8515 can also be used as adjustable-output shunt references. Combine them with a low-cost NPN BJT to design a low-dropout linear regulator for cost-conscious applications that do not require short-circuit, current-limit, or thermal overload protection.
The MAX8515EXK and MAX8515AEXK are available in tiny 2mm x 2mm 5-pin SC70 packages specified for the extended-industrial temperature range (-40°C to +85°C). The MAX8515EZK and MAX8515AEZK are available in small 5-pin SOT23 packages. The MAX8515EZK prices start at $0.48 (1000-up, FOB, USA). An evaluation kit is available to speed designs.
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