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ADP3333ARM-2.5 PDF预览

ADP3333ARM-2.5

更新时间： 2024-11-23 12:34:23
品牌 Logo 应用领域
亚德诺 - ADI 线性稳压器IC调节器电源电路光电二极管输出元件
页数 文件大小 规格书
12页 245K
描述
High Accuracy Ultralow IQ, 300 mA, yCAP Low Dropout Regulator

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ADP3333ARM-2.5 数据手册

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High Accuracy Ultralow IQ, 300 mA,  
anyCAP Low Dropout Regulator  
ADP3333  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
High accuracy over line and load: 0.8% @ 25°C,  
1.8% over temperature  
Q1  
IN  
OUT  
THERMAL  
PROTECTION  
ADP3333  
Ultralow dropout voltage: 230 mV (maximum) @ 300 mA  
Requires only COUT = 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  
R1  
CC  
g
DRIVER  
m
R2  
SD  
BAND GAP  
REF  
2.6 V to 12 V supply range  
−40°C to +85°C ambient temperature range  
Ultrasmall 8-lead MSOP package  
GND  
Figure 1.  
APPLICATIONS  
Cellular phones  
PCMCIA cards  
Personal digital assistants (PDAs)  
DSP/ASIC supplies  
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  
4
1
NC  
V
2
IN  
IN  
V
OUT  
OUT  
+
C
IN  
1µF  
+
C
OUT  
1µF  
SD  
7
GND  
3
ON  
NC = NO CONNECT  
OFF  
Figure 2. Typical Application Circuit  
Rev. B  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rightsof third parties that may result fromits use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks andregisteredtrademarks are the property of their respective owners.  
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.  
 
 
 
 
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