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ADP3330ART-3.3 PDF预览

ADP3330ART-3.3

更新时间: 2024-11-06 23:27:59
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
12页 141K
描述
Positive Fixed Voltage Regulator

ADP3330ART-3.3 数据手册

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High Accuracy Ultralow IQ,  
200 mA, SOT-23, anyCAP  
a
Low Dropout Regulator  
ADP3330  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
High Accuracy Over Line and Load: ؎0.7% @ +25؇C,  
؎1.4% Over Temperature  
Ultralow Dropout Voltage: 140 mV (Typ) @ 200 mA  
Requires Only CO = 0.47 F for Stability  
anyCAP = Stable with Any Type of Capacitor  
(Including MLCC)  
Current and Thermal Limiting  
Low Noise  
Low Shutdown Current: <2 A  
2.9 V to 12 V Supply Range  
Q1  
OUT  
IN  
ADP3330  
R1  
R2  
THERMAL  
PROTECTION  
CC  
ERR  
SD  
g
DRIVER  
m
BANDGAP  
REF  
–40؇C to +85؇C Ambient Temperature Range  
Ultrasmall Thermally Enhanced Chip-on-Lead™  
SOT-23-6 6-Lead Package  
GND  
APPLICATIONS  
Cellular Telephones  
Notebook, Palmtop Computers  
Battery Powered Systems  
PCMCIA Regulator  
Bar Code Scanners  
Camcorders, Cameras  
GENERAL DESCRIPTION  
The SOT-23-6 package has been thermally enhanced using  
Analog Devices’ proprietary Chip-on-Lead feature to maximize  
power dissipation.  
The ADP3330 is a member of the ADP330x family of precision  
low dropout anyCAP voltage regulators. The ADP3330 operates  
with an input voltage range of 2.9 V to 12 V and delivers a load  
current up to 200 mA. The ADP3330 stands out from the con-  
ventional LDOs with a novel architecture and an enhanced  
process that enables it to offer performance advantages and  
higher output current than its competition. Its patented design  
requires only a 0.47 µF output capacitor for stability. This  
device is insensitive to output capacitor Equivalent Series  
Resistance (ESR), and is stable with any good quality capaci-  
tor, including ceramic (MLCC) types for space-restricted  
applications. The ADP3330 achieves exceptional accuracy of  
±0.7% at room temperature and ±1.4% over temperature, line  
and load variations. The dropout voltage of the ADP3330 is  
only 140 mV (typical) at 200 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 2 µA. The ADP3330 has ultralow quiescent current  
34 µA (typ) in light load situations.  
NR  
ERR  
ADP3330  
V
IN  
OUT  
V
IN  
OUT  
C
OUT  
+
+
C
IN  
SD  
GND  
0.47F  
0.47F  
ON  
OFF  
Figure 1. Typical Application Circuit  
anyCAP and Chip-on-Lead are trademarks of Analog Devices, Inc.  
REV. A  
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 rights of third parties  
which 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  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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