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ADP121 데이터시트(PDF) 1 Page - Analog Devices |
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ADP121 데이터시트(HTML) 1 Page - Analog Devices |
1 / 20 page 150 mA, Low Quiescent Current, CMOS Linear Regulator Data Sheet ADP121 Rev. G InformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,no responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No licenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008–2012 Analog Devices, Inc. All rights reserved. FEATURES Input voltage range: 2.3 V to 5.5 V Output voltage range: 1.2 V to 3.3 V Output current: 150 mA Low quiescent current IGND = 11 μA with 0 μA load IGND = 30 μA with 150 mA load Low shutdown current: <1 μA Low dropout voltage 90 mV @ 150 mA load High PSRR 70 dB @ 1 kHz at VOUT = 1.2 V 70 dB @ 10 kHz at VOUT = 1.2 V Low noise: 40 μV rms at VOUT = 1.2 V No noise bypass capacitor required Output voltage accuracy: ±1% Stable with a small 1 μF ceramic output capacitor Current limit and thermal overload protection Logic controlled enable 5-lead TSOT package 4-ball 0.4 mm pitch WLCSP APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment Post dc-to-dc regulation Post regulation TYPICAL APPLICATION CIRCUITS NC = NO CONNECT 1 2 3 5 4 COUT 1µF CIN 1µF VOUT = 1.8V VIN = 2.3V VOUT NC VIN GND EN OFF ON Figure 1. ADP121 TSOT with Fixed Output Voltage, 1.8 V VIN VOUT EN GND COUT 1µF CIN 1µF VOUT = 1.8V VIN = 2.3V OFF ON Figure 2. ADP121 WLCSP with Fixed Output Voltage, 1.8 V GENERAL DESCRIPTION The ADP121 is a quiescent current, low dropout, linear regulator that operates from 2.3 V to 5.5 V and provides up to 150 mA of output current. The low 135 mV dropout voltage at 150 mA load improves efficiency and allows operation over a wide input voltage range. The low 30 μA of quiescent current at full load makes the ADP121 ideal for battery-operated portable equipment. The ADP121 is available in output voltages ranging from 1.2 V to 3.3 V. The parts are optimized for stable operation with small 1 μF ceramic output capacitors. The ADP121 delivers good transient performance with minimal board area. Short-circuit protection and thermal overload protection circuits prevent damage in adverse conditions. The ADP121 is available in a tiny 5-lead TSOT and 4-ball 0.4 mm pitch halide-free WLCSP packages and utilizes the smallest footprint solution to meet a variety of portable applications. |
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