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ADP3310AR-5 PDF预览

ADP3310AR-5

更新时间: 2024-11-08 22:53:39
品牌 Logo 应用领域
亚德诺 - ADI 稳压器光电二极管控制器
页数 文件大小 规格书
8页 124K
描述
Precision Voltage Regulator Controller

ADP3310AR-5 数据手册

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Precision Voltage  
a
Regulator Controller  
ADP3310  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
؎1.5% Accuracy Over Line, Load and Temperature  
Low 800 A (Typical) Quiescent Current  
Shutdown Current: 1 A (Typical)  
Stable with 10 F Load Capacitor  
+2.5 V to +15 V Operating Range  
Fixed Output Voltage Options: 2.8 V, 3 V, 3.3 V, 5 V  
Up to 10 A Output Current  
VIN  
+
50mV  
ADP3310  
EN  
BIAS  
IS  
SO-8 Package  
–40؇C to +85؇C Ambient Temperature Range  
Internal Gate to Source Protective Clamp  
Current and Thermal Limiting  
VREF  
GATE  
Programmable Current Limit  
Foldback Current Limit  
VOUT  
APPLICATIONS  
Desktop Computers  
Handheld Instruments  
Cellular Telephones  
Battery Operated Devices  
Solar Powered Instruments  
High Efficiency Linear Power Supplies  
Battery Chargers  
GND  
R
S
50mV  
NDP6020P  
V
V
IN  
OUT  
+
+
10F  
1F  
GENERAL DESCRIPTION  
The ADP3310 is a precision voltage regulator controller that  
can be used with an external Power PMOS device such as the  
NDP6020P to form a two chip low dropout linear regulator.  
The low quiescent current (800 µA) and the Enable feature  
make this device especially suitable for battery powered systems.  
The dropout voltage at 1 A is only 70 mV when used with the  
NDP6020P, allowing operation with minimal headroom and  
prolonging battery useful life. The ADP3310 can drive a wide  
range of currents, depending on the external PMOS device used.  
GATE  
IS  
V
OUT  
V
IN  
ADP3310  
ON  
OFF  
EN  
GND  
Figure 1. Typical Application Circuit  
Additional features of this device include: high accuracy (±1.5%)  
over line, load and temperature, gate-to-source voltage clamp to  
protect the external MOSFET and foldback current limit. A  
current limit threshold voltage of 50 mV (typ) allows 50 mof  
board metal trace resistance to provide a 1 A current limit.  
The ADP3310 operates from a wide input voltage range from  
2.5 V to 15 V and is available in a small SO-8 package.  
REV. A  
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: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1999  

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