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ADP3335ARM-285 PDF预览

ADP3335ARM-285

更新时间: 2024-11-22 22:36:11
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 635K
描述
High Accuracy Ultralow IQ, 500 mA anyCAP Low Dropout Regulator

ADP3335ARM-285 数据手册

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High Accuracy Ultralow IQ, 500 mA  
®
a
anyCAP Low Dropout Regulator  
ADP3335  
FUNCTIONAL BLOCK DIAGRAM  
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)  
Current and Thermal Limiting  
Low Noise  
Low Shutdown Current: < 1.0 A  
2.6 V to 12 V Supply Range  
Q1  
OUT  
IN  
ADP3335  
R1  
R2  
THERMAL  
PROTECTION  
CC  
NR  
g
DRIVER  
m
SD  
BANDGAP  
REF  
–40؇C to +85؇C Ambient Temperature Range  
Ultrasmall Thermally-Enhanced 8-Lead MSOP Package  
GND  
APPLICATIONS  
PCMCIA Card  
Cellular Phones  
Camcorders, Cameras  
Networking Systems, DSL/Cable Modems  
Cable Set-Top Box  
MP3/CD Players  
NR  
ADP3335  
OUT  
DSP Supply  
IN  
IN  
OUT  
OUT  
GND  
V
V
IN  
OUT  
GENERAL DESCRIPTION  
+
+
C
1F  
C
OUT  
IN  
SD  
1F  
The ADP3335 is a member of the ADP330x family of precision  
low dropout anyCAP voltage regulators. The ADP3335 operates  
with an input voltage range of 2.6 V to 12 V and delivers a con-  
tinuous load current up to 500 mA. The ADP3335 stands out  
from conventional LDOs with the lowest thermal resistance of  
any MSOP-8 package and an enhanced process that enables it  
to offer performance advantages beyond its competition. Its  
patented design requires only a 1.0 µF output capacitor for sta-  
bility. This device is insensitive to output capacitor Equivalent  
Series Resistance (ESR), and is stable with any good quality  
capacitor, including ceramic (MLCC) types for space-restricted  
applications. The ADP3335 achieves exceptional accuracy of  
0.9% at room temperature and 1.8% over temperature, line,  
and load. The dropout voltage of the ADP3335 is only 200 mV  
(typical) at 500 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  
1 µA. The ADP3335 has ultralow quiescent current 80 µA  
(typical) in light load situations.  
ON  
OFF  
Figure 1. Typical Application Circuit  
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, 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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