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AQ112CY-S4-AJ-TRL Datasheet(PDF) 1 Page - Acutechnology Semiconductor |
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AQ112CY-S4-AJ-TRL Datasheet(HTML) 1 Page - Acutechnology Semiconductor |
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1 / 10 page  www.acutechnology.com AQ112 AQ112 Ultra-Low Dropout 1A Voltage Regulator Product Specification Revision 1.6 September 13, 2006 Applications • Graphic cards • PC motherboards • Switching power supply post-regulation • Telecom equipment • DVD video player General Description The AQ112 is an ultra-low dropout three terminal voltage regulator, offered in popular fixed options or an adjustable version that can set a precise voltage from 1.22V to 12V with two external resistors. It drops into the footprint of the popular LM1117 SOT-223 and provides a true 4th pin separated from the output tab which allows a separate bias connection from the pass transistor in order to achieve enable and ultra low dropout from VIN to VOUT. The enable pin provides a remote turn-off for low power consumption. It draws virtually zero current in shutdown mode and implements Sequential, Ratiometric, or Simultaneous sequencing schemes. To assure accuracy within 1%, the heart of the AQ112 is a self-correcting AcuRef™ bandgap reference. On-chip current limit and thermal shutdown with hysteresis protects against any combination of overload and ambient temperature that might cause the junction temperature to exceed safe limits. Features • Ultra Low Dropout (400mV at 1A) • Enable pin implements sequencing • Vout tolerance less than 1.5% over temperature • Stable with low cost 1uF capacitor • Thermal protection with hysteresis • Short circuit protection • Adjustable output • The AQ112 is featured in the new SOT223 4-lead TetraPackTM package. • RoHS compliant available Typical Application |
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