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ADP3310AR-3 Datasheet دیتاشیت PDF دانلود

دیتاشیت - Analog Devices - Precision Voltage Regulator Controller

شماره قطعه ADP3310AR-3
شرح مفصل Precision Voltage Regulator Controller
تولید کننده Analog Devices 
آرم Analog Devices 


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ADP3310AR-3 شرح
a
FEATURES
؎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
SO-8 Package
–40؇C to +85؇C Ambient Temperature Range
Internal Gate to Source Protective Clamp
Current and Thermal Limiting
Programmable Current Limit
Foldback Current Limit
APPLICATIONS
Desktop Computers
Handheld Instruments
Cellular Telephones
Battery Operated Devices
Solar Powered Instruments
High Efficiency Linear Power Supplies
Battery Chargers
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.
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.
Precision Voltage
Regulator Controller
ADP3310
FUNCTIONAL BLOCK DIAGRAM
ADP3310
EN BIAS
VIN
+
50mV
IS
VREF
GATE
VOUT
GND
VIN
1F
+
RS
50mV
NDP6020P
+
10F
VOUT
ON
OFF
IS GATE
VIN ADP3310 VOUT
EN
GND
Figure 1. Typical Application Circuit
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 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 1999

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