AP7311 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Description Features The AP7311 is a 150mA, adjustable and fixed output voltage, low 150mA Low Dropout Regulator with EN dropout linear regulator. The device included pass element, error Very low I over full load: 65A Q amplifier, band-gap, current limit and thermal shutdown circuitry. Wide input voltage range: 2V to 6V The device is turned on when EN pin is set to logic high level. Wide adjustable output: 0.8V to 5.0V Fixed output options: 1.0V to 3.3V The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications, for example, PSRR: 65dB at 100Hz battery powered devices. The typical quiescent current is Fast start-up time: 80s approximately 65 A. Stable with low ESR, 1F ceramic output capacitor Excellent Load/Line Transient Response Built-in current-limit and thermal-shutdown functions prevent IC from damage in fault conditions. Low dropout: 150mV typical at 150mA Current limit protection The AP7311 is available in SOT25 package. Short circuit protection Thermal shutdown protection Ambient temperature range: -40C to 85C SOT25: Available in Green Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) Applications Notebook and Desktop Computers and Pheripherals Portable Devices Battery Powered Devices CD-ROM, DVD and LAN Cards Typical Application Circuit V V V V IN IN OUT OUT IN IN OUT OUT AP7311 AP7311 R1 1uF 1uF 1uF 1uF Enable Enable EN ADJ EN GND GND R2 Adjustable Output Fixed Output R 1 V = V 1 + OUT REF R 2 AP7311 Rev. 2 1 of 13 NOVEMBER 2009 www.diodes.com Diodes Incorporated AP7311 150mA, Low Quiescent Current, Fast Transient Low Dropout Linear Regulator Ordering Information AP7311 - XX XX G - 7 Output Packing Package Green Blank : ADJ W : SOT25 G : Green 7 : Tape & Reel 10 : 1.0V 12 : 1.2V 15 : 1.5V 18 : 1.8V 20 : 2.0V 25 : 2.5V 28 : 2.8V 30 : 3.0V 33 : 3.3V Packaging 7 Tape and Reel Device Package Code (Note 2) Quantity Part Number Suffix AP7311-XXWG-7 W SOT25 3000/Tape & Reel -7 Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at