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參數(shù)資料
| 型號(hào)： | ADP3303 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 200 mA Low Dropout Linear Regulator(高精度低壓差線性穩(wěn)壓器) |
| 中文描述： | 200毫安低壓差線性穩(wěn)壓器（高精度低壓差線性穩(wěn)壓器） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 210K |
| 代理商： | ADP3303 |
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.
a
ADP3303
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
High Accuracy anyCAP*
200 mA Low Dropout Linear Regulator
FUNCTIONAL BLOCK DIAGRAM
Q2
THERMAL
PROTECTION
Gm
Q1
CC
BANDGAP
REF
DRIVER
R1
R2
ADP3303
OUT
IN
ERR
SD
GND
ADP3303-5.0
5
4
6
3
NR
OUT
IN
1
2
7
8
ERR
330k
E
OUT
C2
0.47μF
V
OUT
= +5V
ON
OFF
SD
GND
C1
0.47μF
V
IN
Figure 1. Typical Application Circuit
FEATURES
High Accuracy Over Line and Load Regulations
at 25
8
C:
6
0.8%
Ultralow Dropout Voltage: 180 mV Typical @ 200 mA
Requires Only C
O
= 0.47
m
F for Stability
anyCAP = Stable with All Types of Capacitors
(Including MLCC)
Current and Thermal Limiting
Low Noise
Dropout Detector
Low Shutdown Current: 1
m
A
Several Fixed Voltage Options
3.2 V to 12 V Supply Range
–20
8
C to +85
8
C Ambient Temperature Range
Thermally Enhanced SO-8 Package
Excellent Line and Load Regulations
APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
Portable Instruments
Post Regulator for Switching Supplies
Bar Code Scanners
GENERAL DESCRIPTION
The ADP3303 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. The ADP3303
stands out from the conventional LDOs with a novel architec-
ture, an enhanced process and a new package. Its patented
design requires only a 0.47
μ
F 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 ADP3303
achieves exceptional accuracy of
±
0.8% at room temperature
and
±
1.4% overall accuracy over temperature, line and load
regulations. The dropout voltage of the ADP3303 is only
180 mV (typical) at 200 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 heatsink
or large copper surface on the PC board. This keeps PC board
real estate to a minimum and makes the ADP3303 very
attractive for use in portable equipment.
The ADP3303 operates with a wide input voltage range from
3.2 V to 12 V and delivers a load current in excess of 200 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:
ADP3300 (50 mA, SOT-23)
ADP3301 (100 mA)
ADP3302 (100 mA, Dual Output)
ADP3304 (100 mA, Dual Output with Separate Grounds)
ADP3306 (300 mA)
*
anyCAP is a trademark of Analog Devices Inc.
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| ADP3303A | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Accuracy anyCAP⑩ Adjustable 200 mA Low Dropout Linear Regulator |
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| ADP3303AR-2.7 | 制造商:Analog Devices 功能描述:LDO Regulator Pos 2.7V 0.3A 8-Pin SOIC N 制造商:Rochester Electronics LLC 功能描述:HI ACCURACY LOW DROPOUT LINEAR REGULATOR - Bulk |
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