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AP2303 の電気的特性と機能

AP2303のメーカーはDiodesです、この部品の機能は「DDR BUS TERMINATION REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 AP2303
部品説明 DDR BUS TERMINATION REGULATOR
メーカ Diodes
ロゴ Diodes ロゴ 




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AP2303 Datasheet, AP2303 PDF,ピン配置, 機能
A Product Line of
Diodes Incorporated
AP2303
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 (1/2VDDQ) 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 (VTT=0.9V), DDR-III (VTT=0.75V), DDR-IIIL
(VTT=0.675V), DDR-IV (VTT=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 VIN, VCNTL and VREFEN
Rising and Shutdown along with VIN, VCNTL and VREFEN 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)
VIN 1
GND 2
VREFEN 3
VOUT 4
SOIC-8
(Top View)
8 NC
7 NC
6 VCNTL
5 NC
VIN 1
GND 2
VREFEN 3
VOUT 4
Exposed
Pad
8 NC
7 NC
6 VCNTL
5 NC
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
VCNTL=3.3V/5V
VIN=1.8V/1.5V/1.35V/1.2V
Shutdown
16
R1 VIN VCNTL
3 VREFEN AP2303 VOUT 4
Enable
R2 CSS
GND
2
CCNTL
CIN
RTT
COUT RDUMMY
AP2303
Document number: DS36546 Rev. 3 - 2
1 of 15
www.diodes.com
September 2014
© Diodes Incorporated

1 Page





AP2303 pdf, ピン配列
Absolute Maximum Ratings (Note 4)
A Product Line of
Diodes Incorporated
AP2303
Symbol
VIN
VCNTL
VREFEN
TSTG
TJ
TLEAD
θJA
θJC
ESD
ESD
Parameter
Power Input Voltage
Control Input Voltage
Reference Input Voltage
Storage Temperature
Junction Temperature
Lead Temperature (Soldering, 10sec)
Thermal Resistance (Junction to Ambient) (Note 5)
Thermal Resistance (Junction to Case)
ESD (Human Body Model)
ESD (Machine Model)
Rating
-0.3 to 6
-0.3 to 6
-0.3 to 6
+150
+150
+260
PSOP-8
80
SOIC-8
110
PSOP-8
38
SOIC-8
50
2000
200
Unit
V
V
V
°C
°C
°C
°C/W
°C/W
V
V
Notes:
4. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.
Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.
5. θJA is measured with the component mounted on a 2-Layer FR-4 board with 2.54cm*2.54cm thermal sink pad in free air.
Recommended Operating Conditions
Symbol
VCNTL
VIN
VREFEN
TJ
TA
Parameter
Control Input Voltage (Note 6)
Power Input Voltage
Reference Input Voltage
Operating Junction Temperature Range
Operating Ambient Temperature Range
Note 6: Keep VCNTL VIN in operation power on and power off sequences.
AP2303
Document number: DS36546 Rev. 3 - 2
3 of 15
www.diodes.com
Min Max Unit
3.0 5.5 V
1.2 5.5 V
0.6
VCNTL-2.2
V
-40
+125
°C
-40 +85 °C
September 2014
© Diodes Incorporated


3Pages


AP2303 電子部品, 半導体
Performance Characteristics (Cont.)
Output Voltage vs. Source Current (DDR-III)
0.770
0.765
0.760
0.755
V =1.5V, V =3.3V, V =0.75V
IN CNTL REFEN
T =-40oC
A
T =25oC
A
T =85oC
A
0.750
0.745
0.740
0.735
0.730
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75
Source Current (A)
A Product Line of
Diodes Incorporated
AP2303
Output Voltage vs. Sink Current (DDR-III)
0.770
0.765
0.760
0.755
0.750
0.745
0.740
0.735
0.730
0.00
-0.25
V =1.5V, V =3.3V, V =0.75V
IN CNTL REFEN
T =-40oC
A
T =25oC
A
T =85oC
A
-0.50
-0.75
-1.00
Sink Current (A)
-1.25
-1.50
-1.75
Output Voltage vs. Source Current (DDR-IV)
0.620
0.615
0.610
0.605
V =1.2V, V =3.3V, V =0.6V
IN CNTL REFEN
T =-40oC
A
T =25oC
A
T =85oC
A
0.600
0.595
0.590
0.585
0.580
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75
Source Current (A)
Output Voltage vs. Sink Current (DDR-IV)
0.620
0.615
0.610
0.605
0.600
0.595
0.590
0.585
0.580
0.00
-0.25
V =1.2V, V =3.3V, V =0.6V
IN CNTL REFEN
T =-40oC
A
T =25oC
A
T =85oC
A
-0.50
-0.75
-1.00
Sink Current (A)
-1.25
-1.50
-1.75
VIN Input Current vs. VIN Input Voltage
7
V =5VV =0.9V
CNTL
REFEN
6 No Load
5
4
3
2
1
0
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VIN Input Voltage (V)
VIN Input Current vs. VCNTL Input Voltage
2000
1800
1600
1400
1200
V =1.5V, V =0.75V
IN REFEN
No Load
T =-40oC
A
T =25oC
A
T =85oC
A
1000
800
600
400
200
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VCNTL Input Voltage (V)
AP2303
Document number: DS36546 Rev. 3 - 2
6 of 15
www.diodes.com
September 2014
© Diodes Incorporated

6 Page



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