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ADP3334AR

更新时间： 2024-11-22 22:53:39
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
8页 229K
描述
High Accuracy Low IQ, 500 mA anyCAP Adjustable Low Dropout Regulator

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ADP3334AR 数据手册

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High Accuracy Low IQ, 500 mA  
anyCAP® Adjustable Low Dropout Regulator  
a
ADP3334  
FUNCTIO NAL BLO CK D IAGRAM  
FEATURES  
High Accuracy Over Line and Load: ؎0.9% @ 25؇C,  
؎1.8% over Temperature  
Ultralow Dropout Voltage: 200 mV (Typ) @ 500 mA  
Requires Only CO = 1.0 ␮F for Stability  
anyCAP = Stable with Any Type of Capacitor  
(Including MLCC)  
Q1  
IN  
OUT  
FB  
ADP3334  
THERMAL  
PROTECTION  
CC  
g
DRIVER  
m
Current and Thermal Limiting  
Low Noise  
Low Shutdown Current: < 1.0 ␮A (Typ)  
2.6 V to 11 V Supply Range  
SD  
BANDGAP  
REF  
1.5 V to 10 V Output Range  
–40؇C to +85؇C Ambient Temperature Range  
Thermally-Enhanced 8-Lead SO Package  
GND  
APPLICATIONS  
Cellular Phones  
Camcorders, Cameras  
Networking Systems, DSL/Cable Modems  
Cable Set-Top Boxes  
DSP Supplies  
Personal Digital Assistants  
GENERAL D ESCRIP TIO N  
ADP3334  
T he ADP3334 is a member of the ADP333x family of precision  
low dropout anyCAP voltage regulators. The ADP3334 operates  
with an input voltage range of 2.6 V to 11 V and delivers a  
continuous load current up to 500 mA. T he novel anyCAP  
architecture requires only a very small 1 µF output capacitor for  
stability, and the LDO is insensitive to the capacitor’s equiva-  
lent series resistance (ESR). This makes ADP3334 stable with any  
capacitor, including ceramic (MLCC) types for space restricted  
applications.  
IN  
IN  
OUT  
V
V
IN  
OUT  
OUT  
R1  
R2  
C
NR  
C
C
IN  
1␮F  
OUT  
1␮F  
FB  
SD  
GND  
OFF  
ON  
Figure 1. Typical Application Circuit  
T he ADP3334 achieves exceptional accuracy of ±0.9% at room  
temperature and ±1.8% over temperature, line, and load. T he  
dropout voltage of the ADP3334 is only 200 mV (typical) at  
500 mA. T his device also includes a safety current limit, ther-  
mal overload protection and a shutdown feature. In shutdown  
mode, the ground current is reduced to less than 1 µA. T he  
ADP3334 has low quiescent current 90 µA (typical) in light  
load situations.  
T he ADP3334 also features ADI’s thermally enhanced T hermal  
Coastline package. This allows 1 W of power dissipation without  
any external heat sinking.  
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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ADP3334AR 替代型号

型号 品牌 替代类型 描述 数据表
ADP3334ARZ-REEL ADI

完全替代

 High Accuracy Low IQ, 500 mA anyCAP­&reg;

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