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ADP3306AR-3 PDF预览

ADP3306AR-3

更新时间： 2024-11-20 03:08:59
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管
页数 文件大小 规格书
3页 159K
描述
IC VREG 3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive Single Output LDO Regulator

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ADP3306AR-3 数据手册

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High Accuracy anyCAP™*  
300 mA Low Dropout Linear Regulator  
a
ADP3306  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
High Accuracy Over Line and Load Regulations  
at 25؇C: ؎1%  
ADP3306  
Ultralow Dropout Voltage: 300 mV Typical @ 300 mA  
Requires Only CO = 1 ␮F for Stability  
anyCAP™ = Stable with All Types of Capacitors  
(Including MLCC)  
Q1  
OUT  
IN  
R1  
R2  
THERMAL  
PROTECTION  
CC  
ERR  
DRIVER  
Q2  
Gm  
Current and Thermal Limiting  
Low Noise  
Dropout Detector  
SD  
BANDGAP  
REF  
Low Shutdown Current: 1 ␮A  
Several Fixed Voltage Options  
3.2 V to 12 V Supply Range  
GND  
–20؇C to +85؇C Ambient Temperature Range  
Thermally Enhanced SO-8 and TSSOP-14 Packages  
Excellent Line and Load Regulations  
APPLICATIONS  
Cellular Telephones  
3
1
NR  
ADP3306-5.0  
Notebook, Palmtop Computers  
Battery Powered Systems  
Portable Instruments  
Post Regulator for Switching Supplies  
Bar Code Scanners  
7
8
IN  
V
OUT  
V
= +5V  
IN  
OUT  
2
R
1
330k⍀  
C2  
1␮F  
C1  
0.47␮F  
6
E
ERR  
OUT  
4
5
PRELIMINARY  
ON  
OFF  
GENERAL DESCRIPTION  
The ADP3306 is a member of the ADP330x family of precision  
TECHNICAL  
DATA  
SD  
GND  
low dropout anyCAP™ voltage regulators. The ADP3306  
stands out from the conventional LDOs with a novel architec-  
ture, an enhanced process and a new package. Its patented  
design requires only a 0.1 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 applications. The ADP3306  
achieves exceptional accuracy of ±1.0% at room temperature and  
±1.5% overall accuracy over temperature, line and load regula-  
tions. The dropout voltage of the ADP3306 is only 300 mV  
(typical) at 300 mA.  
Figure 1. Typical Application Circuit  
The ADP3306 operates with a wide input voltage range from  
3.2 V to 12 V and delivers a load current in excess of 300 mA. It  
features an error flag that signals when the device is about to lose  
regulation or when the short circuit or thermal overload protec-  
tion is activated. Other features include shutdown and optional  
noise reduction capabilities. The ADP330x anyCAP™ LDO fam-  
ily offers a wide range of output voltages and output current  
levels from 50 mA to 300 mA:  
In addition to the new architecture and process, ADI’s new  
proprietary thermally enhanced package (Thermal Coastline)  
can handle 1 W of power dissipation without external heat sink  
or large copper surface on the PC board. This keeps PC board  
real estate to a minimum and makes the ADP3306 very attrac-  
tive for use in portable equipment.  
ADP3300 (50 mA, SOT-23)  
ADP3307 (100 mA, SOT-23)  
ADP3301 (100 mA)  
ADP3302 (100 mA, Dual Output)  
ADP3304 (100 mA, Dual Output with Separate Grounds)  
ADP3303 (200 mA)  
*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: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1997  
123

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