AP7312 DUAL 150mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Description Pin Assignments The AP7312 is 150mA, dual fixed output voltage, low dropout linear regulator. The AP7312 include the pass element, error amplifier, band-gap, current limit and thermal shutdown (Top View) circuitry which protect the IC from damage in fault conditions. The AP7312 has two enable pins (EN1 and EN2) 1 6 OUT2 OUT1 to independently turn the respective channel on when a logic high level is applied. 2 5 GND IN The characteristics of low dropout voltage and low quiescent current make it suitable for low power applications. The EN2 3 4 EN1 typical quiescent current is approximately 60 A. This device is available with fixed output options of SOT26 1.2V/1.8V, 1.2V/3.3V, 1.5V/2.5V, 1.5V/3.3V, 1.8V/2.8V, 1.8V/3.0V, 1.8V/3.3V and 3.3V/3.3V. For other output options please contact our local sales representative directly or through our distributor located in (Top View) your area. The AP7312 is available in SOT26 and DFN2018-6 IN 1 6 OUT1 packages. 2 OUT2 EN1 5 Features EN2 3 4 GND 150mA Low Dropout Regulator with EN Very low IQ: 60A DFN2018-6 Wide input voltage range: 2V to 6V Fixed output options: 1.2V to 3.3V High PSRR: 65dB at 1kHz Applications Fast start-up time: 60s Stable with low ESR, 1F ceramic output capacitor Excellent Load/Line Transient Response Cellular Phones Low dropout: 150mV at 150mA Smart Phones, PDAs Current limit protection MP3/MP4 Short circuit protection Bluetooth head set Thermal shutdown protection Low power application Ambient temperature range: -40C to 85C SOT26 and DFN2018-6: Available in Green Molding Compound (No Br, Sb) Lead Free Finish/RoHS Compliant (Note 1) Note: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at AP7312 DUAL 150mA LOW QUIESCENT CURRENT FAST TRANSIENT LOW DROPOUT LINEAR REGULATOR Typical Application Circuit V V IN OUT1 VIN VOUT1 1uF 1uF V OUT2 EN1 VOUT2 ON OFF 1uF EN2 GND ON OFF Pin Descriptions Pin Number Pin Name Description SOT26 DFN2018-6 OUT2 1 5 Voltage output 2. Bypass to ground through 1F ceramic capacitor GND 2 4 Ground EN2 3 3 Enable input 2, active high EN1 4 2 Enable input 1, active high IN 5 1 Voltage input. Bypass to ground through at least 1F capacitor OUT1 6 6 Voltage output 1. Bypass to ground through 1F ceramic capacitor 2 of 18 January 2011 AP7312 Diodes Incorporated www.diodes.com Document number: DS35133 Rev. 2 - 2 NEW PRODUCT