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A6318 Dataheets PDF



Part Number A6318
Manufacturers AiT Semiconductor
Logo AiT Semiconductor
Description REGULATOR CMOS LOW DROPOUT REGULATOR
Datasheet A6318 DatasheetA6318 Datasheet (PDF)

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,.

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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 Temperature Coefficient  Current Limiting Protection  Thermal Shutdown Protection  Only 1μF Output Capacitor Required for Stability  High Power Supply Rejection Ratio  Custom Voltage Available  Fast output discharge  Available in SOT-25 Package APPLICATION  Cellular and Smart Phones  Battery-Powered Equipment  Laptop, Palmtops, Notebook Computers  Hand-Held Instruments  PCMCIA Cards  MP3/MP4/MP5 Players  Portable Information Appliances TYPICAL APPLICATION REV2.0   - JAN 2010 RELEASED, JAN 2012 UPDATED - -1- AiT Semiconductor Inc. www.ait-ic.com   PIN DESCTRIPTION A6318 REGULATOR CMOS LOW DROPOUT REGULATOR (LDO) 300mA ULTRA-LOW NOISE, ULTRA-FAST Pin # 1 2 3 4 5 Symbol VIN GND EN BP/FB VOUT Top View Function Power Input Voltage Ground Chip Enable Pin with four options. active high with internal 8 MΩ pull down Reference Noise Bypass. FB pin for adjustable version Output Voltage. REV2.0   - JAN 2010 RELEASED, JAN 2012 UPDATED - -2- AiT Semiconductor Inc. www.ait-ic.com   A6318 REGULATOR CMOS LOW DROPOUT REGULATOR (LDO) 300mA ULTRA-LOW NOISE, ULTRA-FAST ABSOLUTE MAXIMUM RATING VCC, Input Supply Voltage -0.3V to +6V EN Input Voltage -0.3V to +VIN Output Voltage -0.3V to VIN+0.3V BP Voltage -0.3V to +6V Output Current 300mA Maximum Junction Temperature 125°C Operating Temperature RangeNote1 -40°C to 85°C Storage Temperature Range -65°C to 125°C Lead Temperature (Soldering, 10s) 300°C Stresses beyond may cause permanent damage to the device. The.


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