A6318

AiT Semiconductor Inc. www.ait-ic.com   A6318 REGULATOR CMOS LOW DROPOUT REGULATOR (LDO) 300mA ULTRA-LOW NOISE, ULTRA-FAST DESCRIPTION The A6318 is designed for portable RF and wireless applications with demanding performance and space requirements. The A6318 performance is optimized for battery-powered systems to deliver ultra low noise and low quiescent current. A noise bypass pin is available for further reduction of output noise. Regulator ground current increases only slightly in dropout, further prolonging the battery life. The A6318 also works with low- ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. The A6318 consumes less than 0.01μA in shutdown mode and has fast turn-on time less than 50μs. The other features include ultra low dropout voltage, high output accuracy, current limiting protection, and high ripple rejection ratio. The A6318 is available in SOT-25 package ORDERING INFORMATION Package Type Part Number SOT-25 A6318E5R-XX E5 A6318E5VR-XX X: Output Voltage Note ADJ=Adjustable V: Halogen free Package R: Tape & Reel AiT provides all RoHS products Suffix “V” means Halogen free package FEATURES  Ultra-low noise for RF Application  Ultra-Fast Response in Line/Load Transient  Quick Start-Up (Typically 50μS)  <0.01μA Standby Current When Shutdown  Low Dropout:210mV@300mA  Wide Operating Voltage Ranges: 2V to 6V  TTL-logic-Controlled Shutdown Input  Low Temperat...