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AP2303MPTR-G1 Benutzerreferenzhandbuch

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AP2303
Document number: DS36546 Rev. 3 - 2
1 of 15
www.diodes.com
September 2014
© Diodes Incorporated
AP2303
A Product Line of
Diodes Incorporated
NEW PROD UCT
DDR BUS TERMINATION REGULATOR
Description
The AP2303 is a low dropout linear regulator to generate termination
voltage of DDR-SDRAM system. The regulator can source or sink up
to 1.75A current continuously. The output voltage is regulated to track
tightly with the reference voltage (1/2V
DDQ
) within ±10mV.
The AP2303 supports soft start-up when used to turn on the VCNTL
and VREFEN. It integrates a shutdown circuit that will be triggered
once the voltage of VIN, VCNTL or VREFEN falls below a certain
value.
AP2303 features over temperature protection and current limit
protection for both source and sink.
AP2303 is available in packages of SOIC-8 and PSOP-8.
Features
Support DDR-II (V
TT
=0.9V), DDR-III (V
TT
=0.75V), DDR-IIIL
(V
TT
=0.675V), DDR-IV (V
TT
=0.6V) Application
Source and Sink up to 1.75A Current
Output Voltage Accuracy Over Full Load: ±2% (Max.)
Soft Start-up and Shutdown along with V
IN
, V
CNTL
and V
REFEN
Rising and Shutdown along with V
IN
, V
CNTL
and V
REFEN
Dropping
Flexible Output by 2 External Resistors
Requires Minimum 10µF Output Ceramic Capacitor for
Application
Current Limit Protection for Both Source and Sink
OTSD Protection
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
SOIC-8
(Top View)
PSOP-8
Applications
DDR-II/DDR-III/DDR-IIIL/DDR-IV Memory System
Desktop PC, Notebook Mother Board
Graphic Card
STB, LCD-TV, Web-TV
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
VIN
GND
VREFEN
VOUT
NC
NC
VCNTL
NC
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
VOUT
GND
VIN NC
NC
VCNTL
NC
VREFEN
Exposed
Pad
Verzeichnis

AP2303MPTR-G1 Datenblatt-PDF

AP2303MPTR-G1 Benutzerreferenzhandbuch
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15 Seiten, 942 KB
AP2303MPTR-G1 Anderes Datenblatt
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