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ADP3333ARMZ-2.77R71 Datasheet(PDF) 1 Page - Analog Devices

No. de pieza ADP3333ARMZ-2.77R71
Descripción Electrónicos  High Accuracy Ultralow IQ, 300 mA, yCAP Low Dropout Regulator
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Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

ADP3333ARMZ-2.77R71 Datasheet(HTML) 1 Page - Analog Devices

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High Accuracy Ultralow IQ, 300 mA,
anyCAP Low Dropout Regulator
ADP3333
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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
©2001–2009 Analog Devices, Inc. All rights reserved.
FEATURES
High accuracy over line and load: ±0.8% @ 25°C,
±1.8% over temperature
Ultralow dropout voltage: 230 mV (maximum) @ 300 mA
Requires only C
OUT = 1.0 µF for stability
anyCAP is stable with any type of capacitor (including MLCC)
Current and thermal limiting
Low noise
Low shutdown current: < 1 µA
2.6 V to 12 V supply range
−40°C to +85°C ambient temperature range
Ultrasmall 8-lead MSOP package
APPLICATIONS
Cellular phones
PCMCIA cards
Personal digital assistants (PDAs)
DSP/ASIC supplies
FUNCTIONAL BLOCK DIAGRAM
THERMAL
PROTECTION
CC
IN
ADP3333
OUT
GND
Q1
BAND GAP
REF
DRIVER
gm
SD
R1
R2
Figure 1.
GENERAL DESCRIPTION
The ADP3333 is a member of the ADP333x family of precision
low dropout (LDO) anyCAP® voltage regulators. Pin compatible
with the MAX8860, the ADP3333 operates with a wider input
voltage range of 2.6 V to 12 V and delivers a load current up to
300 mA. ADP3333 stands out from other conventional LDOs
with a novel architecture and an enhanced process that enables
it to offer performance advantages over its competition. Its
patented design requires only a 1.0 μF output capacitor for
stability. This device is insensitive to output capacitor equivalent
series resistance (ESR) and is stable with any good quality
capacitor, including ceramic (MLCC) types for space-restricted
applications. The ADP3333 achieves exceptional accuracy of
±0.8% at room temperature and ±1.8% over temperature, line,
and load variations. The dropout voltage of the ADP3333 is
only 140 mV (typical) at 300 mA. This device also includes a
safety current limit, thermal overload protection, and a shutdown
feature. In shutdown mode, the ground current is reduced to
less than 1 μA. The ADP3333 has ultralow quiescent current,
70 μA (typical) in light load situations.
ADP3333
NC
IN
GND
VOUT
ON
OFF
OUT
SD
NC = NO CONNECT
4
1
2
7
3
+
COUT
1µF
CIN
1µF
VIN
+
Figure 2. Typical Application Circuit


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