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ADP3300 PDF预览

ADP3300

更新时间: 2024-09-29 22:53:39
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 131K
描述
High Accuracy anyCAP 50 mA Low Dropout Linear Regulator

ADP3300 数据手册

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®
High Accuracy anyCAP  
a
50 mA Low Dropout Linear Regulator  
ADP3300  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
High Accuracy (Over Line and Load Regulations  
at 25؇C): ؎0.8%  
Ultralow Dropout Voltage: 80 mV Typical @ 50 mA  
Requires Only CO = 0.47 F for Stability  
anyCAP™ = Stable with All Types of Capacitors  
(Including MLCC)  
Current and Thermal Limiting  
Low Noise  
Dropout Detector  
ADP3300  
Q1  
OUT  
IN  
R1  
R2  
THERMAL  
PROTECTION  
CC  
ERR  
DRIVER  
GND  
Q2  
Gm  
SD  
BANDGAP  
REF  
Low Shutdown Current: 1 A  
3.0 V to 12 V Supply Range  
–40؇C to +85؇C Ambient Temperature Range  
Several Fixed Voltage Options  
Ultrasmall SOT-23 6-Lead Package  
Excellent Line and Load Regulations  
APPLICATIONS  
Cellular Telephones  
Notebook, Palmtop Computers  
Battery Powered Systems  
PCMCIA Regulators  
Bar Code Scanners  
Camcorders, Cameras  
2
NR  
ADP3300-5  
5
V
IN  
4
OUT  
V
= +5V  
IN  
OUT  
R1  
330k  
C2  
0.4
C1  
F
F
0.4
6
E
OUT  
GENERAL DESCRIPTION  
1
3
The ADP3300 is a member of the ADP330x family of precision  
low dropout anyCAP™ voltage regulators. The ADP3300  
stands out from conventional 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 capacitor, regardless of its ESR (Equivalent Series Resistance)  
value, including ceramic types (MLCC) for space restricted appli-  
cations. The ADP3300 achieves exceptional accuracy of 0.8%  
at room temperature and 1.4% overall accuracy over tempera-  
ture, line and load regulations. The dropout voltage of the  
ADP3300 is only 80 mV (typical) at 50 mA.  
ON  
OFF  
GND  
Figure 1. Typical Application Circuit  
LDO family offers a wide range of output voltages and output  
current levels from 50 mA to 200 mA:  
ADP3301 (100 mA)  
ADP3302 (100 mA, Dual Output)  
ADP3303 (200 mA)  
The ADP3300 operates with a wide input voltage range from  
3.0 V to 12 V and delivers a load current in excess of 50 mA. It  
features an error flag that signals when the device is about to  
lose regulation or when the short circuit or thermal overload  
protection is activated. Other features include shutdown and  
optional noise reduction capabilities. The ADP330x anyCAP™  
anyCAP is a registered trademark 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., 2000  

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