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ADP3304

更新时间： 2024-11-18 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 128K
描述
High Accuracy anyCAP⑩ 100 mA Low Dropout Linear Regulator

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High Accuracy anyCAP™*  
100 mA Low Dropout Linear Regulator  
a
ADP3301  
FEATURES  
FUNCTIO NAL BLO CK D IAGRAM  
High Accuracy (Over Line and Load Regulations  
at +25؇C): ؎0.8%  
Ultralow Dropout Voltage: 100 m V Typical @ 100 m A  
Requires Only CO = 0.47 ␮F for Stability  
anyCAP™* = Stable w ith All Types of Capacitors  
Current and Therm al Lim iting  
Low Noise  
Dropout Detector  
Low Shutdow n Current: 1 ␮A  
ADP3301  
Q1  
OUT  
IN  
R1  
R2  
THERMAL  
PROTECTION  
CC  
ERR  
Q2  
DRIVER  
Gm  
SD  
BANDGAP  
REF  
Several Fixed Voltage Options  
3.0 V to 12 V Supply Range  
GND  
–20؇C to +85؇C Am bient Tem perature Range  
Therm ally Enhanced SO-8 Package  
Excellent Line and Load Regulations  
APPLICATIONS  
Cellular Telephones  
T he ADP3301 operates with a wide input voltage range from  
3 V to 12 V and delivers a load current in excess of 100 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™*  
LDO family offers a wide range of output voltages and output  
current levels from 50 mA to 300 mA:  
Notebook, Palm top Com puters  
Battery Pow ered System s  
Portable Instrum ents  
Post Regulator for Sw itching Supplies  
Bar Code Scanners  
GENERAL D ESCRIP TIO N  
T he ADP3301 is a member of the ADP330x family of precision  
low dropout anyCAP™* voltage regulators. T he ADP3301  
stands out from the conventional LDOs with a novel architec-  
ture, an enhanced process and a new package. Its patented  
design includes a noninverting wideband driver and a stage that  
permits the use of an internal “pole splitting” capacitor to  
stabilize the feedback loop with a single output capacitor as  
small as 0.47 µF. T his device is stable with any type of capacitor  
regardless of its ESR (Equivalent Serial Resistance) value,  
including ceramic types (MLCC) for space restricted applica-  
tions. T he ADP3301 achieves exceptional accuracy of ±0.8% at  
room temperature and ±1.4% overall accuracy over tempera-  
ture, line and load regulations. T he dropout voltage of the  
ADP3301 is only 100 mV (typical) at 100 mA.  
ADP3300 (50 mA, SOT -23)  
ADP3302 (100 mA, Dual Output)  
ADP3304 (100 mA, Dual Output with Separate Grounds)  
ADP3303 (200 mA)  
ADP3306 (300 mA)  
3
NR  
ADP3301-5.0  
7
8
1
2
V
IN  
OUT  
V
= +5V  
IN  
OUT  
R1  
330kΩ  
C1  
0.47µF  
C2  
0.47µF  
6
E
ERR  
4
OUT  
5
In addition to the new architecture and process, ADI’s new  
proprietary thermally enhanced package (T hermal Coastline)  
can handle 1 W of power dissipation without external heat sink  
or large copper surface on the PC board. T his keeps PC board  
real estate to a minimum and makes the ADP3301 very  
attractive for use in portable equipment.  
ON  
OFF  
GND  
Figure 1. Typical Application Circuit  
*anyCAP is a trademark of Analog Devices Inc.  
REV. 0  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700  
Fax: 617/ 326-8703  
World Wide Web Site: http:/ / w w w .analog.com  
© Analog Devices, Inc., 1997  
12345678

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ADP3306 ADI

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 		High Accuracy anyCAP⑩ 100 mA Low Dropout Line
ADP3306AR-2.7 ADI

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 		IC VREG 2.7 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive S
ADP3306AR-3 ADI

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 		IC VREG 3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive Sin
ADP3306AR-3.2 ADI

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 		IC VREG 3.2 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive S
ADP3306AR-3.3 ADI

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 		IC VREG 3.3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive S
ADP3306AR-5 ADI

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 		IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PDSO8, SOIC-8, Fixed Positive Sin

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