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ADP3334ACP

更新时间： 2024-11-26 12:47:59
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 380K
描述
High Accuracy, Low IQ, anyCAP Adjustable Low Dropout Regulator

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ADP3334ACP 数据手册

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®
High Accuracy, Low IQ, anyCAP  
Adjustable Low Dropout Regulator  
ADP3334  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
High Accuracy over Line and Load: ꢀ0.9% @ 25ꢁC,  
ꢀ1.8% over Temperature  
500 mA Current Capability  
Q1  
IN  
OUT  
FB  
ADP3334  
Ultralow Dropout Voltage  
THERMAL  
PROTECTION  
CC  
Requires Only CO = 1.0 ꢂF for Stability  
anyCAP = Stable with Any Type of Capacitor  
(Including MLCC)  
g
DRIVER  
m
Current and Thermal Limiting  
Low Noise  
Low Shutdown Current: < 1.0 ꢂA (Typ)  
2.6 V to 11 V Supply Range  
1.5 V to 10 V Output Range  
–40ꢁC to +85ꢁC Ambient Temperature Range  
SD  
BAND GAP  
REF  
GND  
APPLICATIONS  
Cellular Phones  
TFT LCD Modules  
Camcorders, Cameras  
Networking Systems, DSL/Cable Modems  
Cable Set-Top Boxes  
DSP Supplies  
Personal Digital Assistants  
GENERAL DESCRIPTION  
The ADP3334 is available in three different package options:  
1. Excellent thermal capability, space saving 3 mm ϫ 3 mm LFCSP.  
2. Popular low profile MSOP-ꢁ.  
The 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. The novel anyCAP  
architecture requires only a very small 1 µF output capacitor for  
stability, and the LDO is insensitive to the capacitor’s equivalent  
series resistance (ESR). This makes the ADP3334 stable with any  
capacitor, including ceramic (MLCC) types for space restricted  
applications.  
3. Traditional thermal enhanced SOIC-ꢁ.  
ADP3334  
IN  
IN  
OUT  
V
V
IN  
OUT  
OUT  
R1  
R2  
C
NR  
C
1ꢂF  
C
1ꢂF  
IN  
OUT  
FB  
The ADP3334 achieves exceptional accuracy of 0.ꢀ9 at room  
temperature and 1.ꢁ9 over temperature, line, and load. The  
dropout voltage of the ADP3334 is only 200 mV (typical) at  
500 mA. This 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. The  
ADP3334 has low quiescent current of ꢀ0 µA (typical) in light  
load situations.  
SD  
GND  
OFF  
ON  
Figure 1. 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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective companies.  
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  
© 2003 Analog Devices, Inc. All rights reserved.  
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