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ADP3338AKC-33 PDF预览

ADP3338AKC-33

更新时间： 2024-11-22 22:05:35
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 144K
描述
High-Accuracy Ultralow IQ, 1 A, anyCAP Low Dropout Regulator

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ADP3338AKC-33 数据手册

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®
High-Accuracy Ultralow IQ, 1 A, anyCAP  
a
Low Dropout Regulator  
ADP3338  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
High Accuracy Over Line and Load: ꢀ0.8% @ 25ꢁC,  
ꢀ1.4% Over Temperature  
Ultralow Dropout Voltage: 190 mV (Typ) @ 1 A  
Requires Only CO = 1 ꢂF for Stability  
anyCAP = Stable with Any Type of Capacitor  
(Including MLCC)  
Q1  
OUT  
IN  
ADP3338  
R1  
R2  
THERMAL  
PROTECTION  
CC  
g
DRIVER  
m
Current and Thermal Limiting  
Low Noise  
BANDGAP  
REF  
2.7 V to 8 V Supply Range  
–40ꢁC to +85ꢁC Ambient Temperature Range  
SOT-223 Package  
GND  
APPLICATIONS  
Notebook, Palmtop Computers  
SCSI Terminators  
Battery-Powered Systems  
Bar Code Scanners  
Camcorders, Cameras  
Home Entertainment Systems  
Networking Systems  
DSP/ASIC Supply  
GENERAL DESCRIPTION  
ADP3338  
The ADP3338 is a member of the ADP33xx family of precision  
low dropout anyCAP voltage regulators. The ADP3338 oper-  
ates with an input voltage range of 2.7 V to 8 V and delivers a  
load current up to 1 A. The ADP3338 stands out from the  
conventional 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 1 µF output capacitor for stability. 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  
ADP3338 achieves exceptional accuracy of 0.8% at room  
temperature and 1.4% over temperature, line and load varia-  
tions. The dropout voltage of the ADP3338 is only 190 mV  
(typical) at 1 A. This device also includes a safety current limit  
and thermal overload protection. The ADP3338 has ultralow  
quiescent current 110 µA (typical) in light load situations.  
V
IN  
V
OUT  
OUT  
IN  
1ꢂF  
1ꢂF  
GND  
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
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  
www.analog.com  
© Analog Devices, Inc., 2001  
12345678

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