High Performance Analog IC Portfolio - SE Spezial-Electronic Sp. z o.o

POWER MANAGEMENTDC-DC Step-upConvertersMOBILE ENTERTAINMENT AUDIO SENSING INTERFACES LIGHTING MANAGEMENT RF PRODUFCTS / RFID DATA CONVERTERSLow Iq Low Voltage Step-Up DC-DC ConverterAS1323General DescriptionThe AS1323 high-effi ciency step-up DC-DC converter was designedspecifi cally for single-cell, battery-powered devices where lowestquiescent current and high effi ciency are essential.The compact device is available in three fi xed-voltage variations and isperfect for a wide variety of applications where extremely-low quiescentcurrents and very-small form factors are critical.The devices are available as the standard products listed below.Standard ProductsModel Fixed Output Voltage PackageAS1323-27 2.7V TSOT23-5AS1323-30 3.0V TSOT23-5AS1323-33 3.3V TSOT23-5Integrated boot circuitry ensures start-up even with veryhigh loadcurrents.The true output disconnect feature completely disconnects the outputfrom the battery during shutdown.The device is available in a TSOT23-5 pin package.Application DiagramVIN0.75 to 2.0V10μF1VBATT3SHDNN10μHAS13235LX2VSS4VOUTKey Features- 1.6μA quiescent current- Input voltage range: 0.75 to 2V- Up to 100mA output current- Fixed output voltages: 2.7, 3.0 and 3.3V- Shutdown current: 0.1μA- Output voltage accuracy: ±3%- Effi ciency: up to 85%- No external diode or FETs needed- Output disconnect in shutdown- Guaranteed 0.95V start-up voltage- TSOT23-5 packageApplicationsThe devices are ideal for single-cell portable devices including mobilephones, MP3 players, PDAs, remote controls, personal medical devices,wireless transmitters and receivers, and any other battery-operated,portable device.10μFVSSSHDNN231.6µAQuiescent CurrentVBATT 15 LXAS13234 VOUT30www.austriamicrosystems.comRevision 1.02