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參數資料
| 型號： | ADP3308ART-2.5-RL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 固定正電壓單路輸出LDO穩壓器 |
| 英文描述： | 2.5 V FIXED POSITIVE LDO REGULATOR, 0.17 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 1/8頁 |
| 文件大小： | 137K |
| 代理商： | ADP3308ART-2.5-RL7 |
REV. B
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
ADP3308
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
anyCAP 50 mA
Low Dropout Linear Regulator
FUNCTIONAL BLOCK DIAGRAM
CC
OUT
GND
R1
R2
Q1
IN
SD
ADP3308
BANDGAP
REF
Q2
ERR/NC
DRIVER
THERMAL
PROTECTION
gm
FEATURES
1.2% Accuracy Over Line and Load Regulations
@ 25 C
Ultralow Dropout Voltage: 80 mV Typical @ 50 mA
Requires Only CO = 0.47
F for Stability
anyCAP = Stable with All Types of Capacitors
(Including MLCC)
Current and Thermal Limiting
Low Noise
Low Shutdown Current: 1
A
2.8 V to 12 V Supply Range
–20 C to +85 C Ambient Temperature Range
Several Fixed Voltage Options
Ultrasmall SOT-23-5 Package
Excellent Line and Load Regulations
APPLICATIONS
Cellular Telephones
Notebook, Palmtop Computers
Battery Powered Systems
PCMCIA Regulator
Bar Code Scanners
Camcorders, Cameras
GENERAL DESCRIPTION
The ADP3308 is a member of the ADP330x family of precision
low dropout anyCAP voltage regulators. It is pin-for-pin and
functionally compatible with National’s LP2980, but offers
performance advantages. The ADP3308 stands out from the
conventional LDOs with a novel architecture and an enhanced
process. Its patented design requires only a 0.47
F output
capacitor for stability. This device is stable with any type of
capacitor regardless of its ESR (Equivalent Serial Resistance)
value, including ceramic types for space restricted applications.
The ADP3308 achieves
±1.2% accuracy at room temperature
and
± 2.2% overall accuracy over temperature, line and load
regulations. The dropout voltage of the ADP3308 is only 80 mV
(typical) at 50 mA. This device also includes a current limit and
a shutdown feature. In shutdown mode, the ground current is
reduced to ~1
A.
The ADP3308 operates with a wide input voltage range from
2.8 V to 12 V and delivers a load current in excess of 100 mA.
The ADP3308 anyCAP LDO offers a wide range of output
voltages. For 100 mA version, refer to the ADP3309 data sheet.
anyCAP is a registered trademark of Analog Devices, Inc.
ADP3308-3.3
OUT
VIN
IN
GND
VOUT = +3.3V
ON
OFF
5
SD
C1
0.47 F
C2
0.47 F
ERR/NC
1
2
3
4
Figure 1. Typical Application Circuit
OBSOLETE
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| ADP3335ARM-1.8-RL | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.37 V DROPOUT, PDSO8 |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADP3308ART-27 | 制造商:AD 制造商全稱:Analog Devices 功能描述:anyCAP⑩ 50 mA Low Dropout Linear Regulator |
| ADP3308ART-285 | 制造商:AD 制造商全稱:Analog Devices 功能描述:anyCAP⑩ 50 mA Low Dropout Linear Regulator |
| ADP3308ART-29 | 制造商:AD 制造商全稱:Analog Devices 功能描述:anyCAP⑩ 50 mA Low Dropout Linear Regulator |
| ADP3308ART-3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:anyCAP⑩ 50 mA Low Dropout Linear Regulator |
| ADP3308ART-3.3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
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