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ADP3309ART-33

更新时间： 2024-11-22 22:05:47
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 123K
描述
anyCAP⑩ 100 mA Low Dropout Linear Regulator

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ADP3309ART-33 数据手册

 浏览型号ADP3309ART-33的Datasheet PDF文件第2页浏览型号ADP3309ART-33的Datasheet PDF文件第3页浏览型号ADP3309ART-33的Datasheet PDF文件第4页浏览型号ADP3309ART-33的Datasheet PDF文件第5页浏览型号ADP3309ART-33的Datasheet PDF文件第6页浏览型号ADP3309ART-33的Datasheet PDF文件第7页 
anyCAP™ 100 mA  
Low Dropout Linear Regulator  
a
ADP3309  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
؎1.2% Accuracy Over Line and Load Regulations @ +25؇C  
Ultralow Dropout Voltage: 120 mV Typical @ 100 mA  
Requires Only CO = 0.47 ␮F for Stability  
anyCAP = Stable with All Types of Capacitors  
(Including MLCC)  
Current and Thermal Limiting  
Low Noise  
Low Shutdown Current: 1 ␮A  
3.0 V to 12 V Supply Range  
ADP3309  
Q1  
IN  
OUT  
R1  
R2  
THERMAL  
PROTECTION  
CC  
ERR/NC  
Q2  
DRIVER  
G
M
SD  
BANDGAP  
REF  
–20؇C to +85؇C Ambient Temperature Range  
Several Fixed Voltage Options  
Ultrasmall SOT-23-5 Package  
GND  
Excellent Line and Load Regulations  
APPLICATIONS  
Cellular Telephones  
Notebook, Palmtop Computers  
Battery Powered Systems  
PCMCIA Regulator  
Bar Code Scanners  
Camcorders, Cameras  
GENERAL DESCRIPTION  
120 mV (typical) at 100 mA. This device also includes a current  
limit and a shutdown feature. In shutdown mode, the ground  
current is reduced to ~1 µA.  
The ADP3309 is a member of the ADP330x family of precision  
low dropout anyCAP voltage regulators. It is pin-for-pin and  
functionally compatible with National’s LP2981, but offers  
performance advantages. The ADP3309 stands out from con-  
ventional LDOs with a novel architecture and an enhanced  
process. Its patented design requires only a 0.47 µF output  
capacitor for stability. This device is stable with any type of  
capacitor regardless of its ESR (Equivalent Series Resistance)  
value, including ceramic types for space restricted applications.  
The ADP3309 achieves ±1.2% accuracy at room temperature  
and ±2.2% overall accuracy over temperature, line and load  
regulations. The dropout voltage of the ADP3309 is only  
The ADP3309 operates with a wide input voltage range from  
3.0 V to 12 V and delivers a load current in excess of 100 mA.  
The ADP3309 anyCAP LDO offers a wide range of output  
voltages. For a 50 mA version, refer to the ADP3308 data sheet.  
ERR/NC  
ADP3309-3.3  
V
IN  
OUT  
V
= +3.3V  
IN  
OUT  
+
–
+
–
C1  
0.47␮F  
C2  
0.47␮F  
ON  
OFF  
SD  
GND  
Figure 1. Typical Application Circuit  
anyCAP is a 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, 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., 1998  
12345678

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