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ADP3333ARM-277 PDF预览

ADP3333ARM-277

更新时间： 2024-11-22 22:53:39
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
8页 120K
描述
High Accuracy Ultralow IQ, 300 mA, anyCAP Low Dropout Regulator

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ADP3333ARM-277 数据手册

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High Accuracy Ultralow IQ, 300 mA,  
anyCAP® Low Dropout Regulator  
a
ADP3333  
FEATURES  
FUNCTIO NAL BLO CK D IAGRAM  
High Accuracy Over Line and Load: ꢀ0.8% @ 25ꢁC,  
ꢀ1.8% Over Temperature  
Q1  
IN  
OUT  
Ultralow Dropout Voltage: 230 mV (Max) @ 300 mA  
Requires Only CO = 1.0 ꢂF for Stability  
anyCAP = Stable with Any Type of Capacitor  
(Including MLCC)  
Current and Thermal Limiting  
Low Noise  
THERMAL  
PROTECTION  
ADP3333  
R1  
R2  
CC  
g
DRIVER  
m
SD  
BANDGAP  
REF  
Low Shutdown Current: < 1 ꢂA  
2.6 V to 12 V Supply Range  
–40ꢁC to +85ꢁC Ambient Temperature Range  
Ultrasmall 8-Lead MSOP Package  
GND  
APPLICATIONS  
Cellular Phones  
PCMCIA Cards  
Personal Digital Assistants (PDAs)  
DSP/ASIC Supplies  
GENERAL D ESCRIP TIO N  
ADP3333 is a member of the ADP333x family of precision low  
dropout 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. T his  
device is insensitive to output capacitor Equivalent Series Resis-  
tance (ESR), and is stable with any good quality capacitor,  
including ceramic (MLCC) types for space-restricted applica-  
tions. ADP3333 achieves exceptional accuracy of ±0.8% at  
room temperature and ±1.8% over temperature, line and load  
variations. T he dropout voltage of ADP3333 is only 140 mV  
(typical) at 300 mA. T his 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. T he ADP3333 has ultralow quiescent current, 70 µA (typ)  
in light load situations.  
ADP3333  
NC  
V
IN  
IN  
V
OUT  
OUT  
C
1ꢂF  
IN  
C
1ꢂF  
OUT  
GND  
SD  
OFF  
NC = NO CONNECT  
ON  
Figure 1. Typical Application Circuit  
anyCAP is a registered trademark of Analog Devices, Inc.  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2001  
12345678

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 		3.3 V FIXED POSITIVE LDO REGULATOR, 0.23 V DROPOUT, PDSO8, ULTRA SMALL, MO-187A, MSOP-8
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