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ADP121-AUJZ20R7 Datasheet(PDF) 1 Page - Analog Devices

No. de pieza ADP121-AUJZ20R7
Descripción Electrónicos  150 mA, Low Quiescent Current, CMOS Linear Regulator
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
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ADP121-AUJZ20R7 Datasheet(HTML) 1 Page - Analog Devices

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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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