Winbond
Bus Termination Regulator
W83310S-R/N
Date: May 21, 2003 Revision: 0.61
W83310S-R/N
Publication Release Date: May 21, 2003
Revision 0.61
I
W83310S-R/N Data Sheet Revision History
PAGES DATES VERSION WEB
VERSION MAIN CONTENTS
1 N.A. 12/2002 0.51 N.A. The versions before 0.5 are only for internal
reference.
2 3 02/2003 0.60 N.A. Recommend circuit update
3 5 03/2003 0.61 N.A. AC specification update
Please note that all data and specifications are subject to change without notice. All the
trademarks of products and companies mentioned in this datasheet belong to their
respective owners.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems
where malfunction of these products can reasonably be expected to result in personal
injury. Winbond customers using or selling these products for use in such applications do
so at their own risk and agree to fully indemnify Winbond for any damages resulting from
such improper use or sales.
W83310S-R/N
Publication Release Date: May 21, 2003
Revision 0.61
I
W83310S-R/N Data Sheet Revision History
PAGES DATES VERSION WEB
VERSION MAIN CONTENTS
1 N.A. 12/2002 0.51 N.A. The versions before 0.5 are only for internal
reference.
2 3 02/2003 0.60 N.A. Recommend circuit update
3 5 03/2003 0.61 N.A. AC specification update
Please note that all data and specifications are subject to change without notice. All the
trademarks of products and companies mentioned in this datasheet belong to their
respective owners.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems
where malfunction of these products can reasonably be expected to result in personal
injury. Winbond customers using or selling these products for use in such applications do
so at their own risk and agree to fully indemnify Winbond for any damages resulting from
such improper use or sales.
W83310S-R/N
Table of Content-
1. GENERAL DESCRIPTION ................................................................................................... 1
2. FEATURES........................................................................................................................... 1
3. APPLICATIONS....................................................................................................................1
4. PIN CONFIGURATION AND DESCRIPTION....................................................................... 2
5. APPLICATION CIRCUIT....................................................................................................... 3
6. INTERNAL BLOCK DIAGRAM ............................................................................................. 4
7. ELECTRICAL CHARACTERISTICS..................................................................................... 6
8. TYPICAL OPERATING WAVEFORM................................................................................... 7
9. PACKAGE DIMENSION ..................................................................................................... 10
10. ORDERING INFORMATION .............................................................................................. 11
11. HOW TO READ THE TOP MARKING................................................................................ 11
Publication Release Date: May 21, 2003
II
Revision 0.61
W83310S-R/N
1. GENERAL DESCRIPTION
The W83310S-R/N is a linear regulator which provides achieves 1.5Amp bi-directional sinking and driving
capability for DDR SDRAM bus terminator application. The chip simply implement a stable power supply
which can track half of input power dynamically for bus terminator with a single chip; that is the chip
integrates two power MOSFETs. There is no any external power device needed. The W83310S-R/N is
promoted with small footprint 8-SOP 150mil package. With W83301S-R/N design, a high integration, high
performance, and cost-effective solution is promoted.
2. FEATURES
Regulates a bi-directional power with driving and sinking capability
Provides achieve 1.5Amp driving and sinking current
Power MOSFET integrated
Low external component count
Low output voltage offset
Operates with +5V,+3.3V and +2.5V power
Small package
Low cost and easy to use
3. APPLICATIONS
DDR Bus Termination Regulator
Active Termination Bus
SSTL-2
SSTL-3
Publication Release Date: May 21, 2003
1
Revision 0.61
W83310S-R/N
4. PIN CONFIGURATION AND DESCRIPTION
- W83310S-R
1
2
3
4
inbond
W83310S-R
5
6
7
8
VCNTL
VIN
VCNTL
GND
VREF
VOUT
SYMBOL PIN FUNCTION
VIN 1
Power input pin.
GND 2 Ground.
VREF 3
Reference voltage and Chip enable.
VOUT 4 Output voltage.
VCNTL 5 Gate drive voltage.
VCNTL 6 Gate drive voltage.
VCNTL 7 Gate drive voltage.
VCNTL 8 Gate drive voltage.
- W83310S-N
1
2
3
4
inbond
W83310S-N
5
6
7
8
N/C
VTT
GND
PVIN
VSEN
VREF
Publication Release Date: May 21, 2003
2
Revision 0.61
W83310S-R/N
SYMBOL PIN FUNCTION
N/C 1
No internal connection.
GND 2 Ground.
VSENSE 3
Feedback pin for regulating VTT.
VREF 4 Internal reference voltage of VDDQ/2.
VDDQ 5 Input for internal reference equal to VDDQ/2.
AVIN 6 Analog input pin.
PVIN 7 Power input pin.
VTT 8 Output voltage for connection to termination resistors.
5. APPLICATION CIRCUIT
- W83310S-R
2.5V
1
8
VIN VCNT
C1
1000u
2
7
GN VCNT 3.3V
3
3
6
VREF VCNT
VOU
4
5
VOU VCNT
C2 Q1
1
Enable# C5
1u
W83310S-R
2N7002 1u C3 C4
2
1u 1000u
Publication Release Date: May 21, 2003
3
Revision 0.61
W83310S-R/N
- W83310S-N
VTT
U
C
1
C
1000
1
8
N/
VTT
2.5
2
7
GN
PVI
C
3
6
1000
VSE
AVI
3.3
4
5
VRE
VRE
VDD
C
1
C
1
W83310S
-
N
6. INTERNAL BLOCK DIAGRAM
- W83310S-R
VCNTL VIN
Control
Lo
g
ic
5
K
5
K
VREF VOUT
GND
Publication Release Date: May 21, 2003
4
Revision 0.61
W83310S-R/N
- W83310S-N
PVIN VDDQ
A
VIN
Control
Logic
5
K
5K
VREF VTT
VSEN
GND
Publication Release Date: May 21, 2003
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Revision 0.61
W83310S-R/N
7. ELECTRICAL CHARACTERISTICS
AC CHARACTERISTICS
W83310S-R
VIN=2.5V,VCNTL=3.3V,VREF=1.25V,Cout=100uF, TA = 0
°
C to +70
°
C
Parameter Symbol Min Typ Max Units Test Conditions
Output Offset Voltage VOS -5 0 +5 mV IOUT=0A
0.8 Loading:
0A1.5A
Load Regulation
0.8 % Loading: 0A-
1.5A
VIN 2.5
Input Voltage Range VCNTL 3.3 V
Operating Current of VCNTL ICNTL 0.5 1 mA No Load(IOUT=0A)
0.4 V Output=High
Shutdown Threshold Trigger
0.1 V Output=Low
Shutdown Current ISHDN 10 uA VREF<0.2V
Loading=0.7A
Note: Load regulation is tested with a 10ms pulse current and measuring VOUT.
W83310S-N
AVIN=3.3V; PVIN=2.5V is recommended, VDDQ =2.5V,VREF=1.25V,Cout=100uF, TA = 0
°
C to +70
°
C
Parameter Symbol Min Typ Max Units Test Conditions
Output Offset Voltage VOS -5 0 +5 mV IOUT=0A
0.8 Loading:
0A1.5A
Load Regulation
0.8 % Loading: 0A-
1.5A
VDDQ 2.5
PVIN 2.5
Input Voltage Range
AVIN 3.3
V
Operating Current of AVIN IAVIN 0.5 1 mA No Load(IOUT=0A)
Note: Load regulation is tested with a 10ms pulse current and measuring VTT.
Publication Release Date: May 21, 2003
6
Revision 0.61
W83310S-R/N
8. TYPICAL OPERATING WAVEFORM
W83310S-R VOUT offset with a 1.5A/10ms driving pulse current.
W83310S-R VOUT offset with a 1.5A/10ms sinking pulse current.
Publication Release Date: May 21, 2003
7
Revision 0.61
W83310S-R/N
W83310S-N VTT offset with a 1.5A/10ms driving pulse current.
W83310S-N VTT offset with a 1.5A/10ms sinking pulse current.
Publication Release Date: May 21, 2003
8
Revision 0.61
W83310S-R/N
- Load regulation with various sinking/driving loading
VOUT vs IOUT
1.242
1.244
1.246
1.248
1.25
-120 -90 -60 -30 0 30 60 90 120
IOUT(mA)
VOUT(V)
Publication Release Date: May 21, 2003
9
Revision 0.61
W83310S-R/N
9. PACKAGE DIMENSION 9. PACKAGE DIMENSION
8L SOP 150mil 8L SOP 150mil
SOP-8 Thermal Resistance
θ
JA 156.0℃/W with 0m/s airflow SOP-8 Thermal Resistance
θ
JA 156.0℃/W with 0m/s airflow
141.8℃/W with 1m/s airflow 141.8℃/W with 1m/s airflow
135.2℃/W with 2m/s airflow 135.2℃/W with 2m/s airflow
130.6℃/W with 0m/s airflow 130.6℃/W with 0m/s airflow
E
1
85
4
Control demensions are in milmeters .
θ
E
E
1
85
4
Control demensions are in milmeters .
θ
E
Publication Release Date: May 21, 2003
10
W83310S-R/N
Publication Release Date: May 21, 2003
Revision 0.61
10
Revision 0.61
W83310S-R/N
Publication Release Date: May 21, 2003
Revision 0.61
11
10. ORDERING INFORMATION
PART NUMBER PACKAGE TYPE PRODUCTION FLOW
W83310S-R 8PIN SOP Commercial, 0°C to +70°C
W83310S-N 8PIN SOP Commercial, 0°C to +70°C
11. HOW TO READ THE TOP MARKING
W83
310S-X
249OB
Left line: Winbond logo
1st & 2nd line: W883310S-R/N – the part number
3rd line: Tracking code Tracking code 249 O A
249: packages assembled in Year 02’, week 49
O: assembly house ID; O means OSE, G means GR, etc.
B: the IC version
Headquarters
No. 4, Creation Rd. III,
Science-Based Industrial Park,
Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5665577
http://www.winbond.com.tw/
Taipei Office
TEL: 886-2-8177-7168
FAX: 886-2-8751-3579
Winbond Electronics Corporation America
2727 North First Street, San Jose,
CA 95134, U.S.A.
TEL: 1-408-9436666
FAX: 1-408-5441798
Winbond Electronics (H.K.) Ltd.
No. 378 Kwun Tong Rd.,
Kowloon, Hong Kong
FAX: 852-27552064
Unit 9-15, 22F, Millennium City,
TEL: 852-27513100
Please note that all data and specifications are subject to change without notice.
All the trade marks of products and companies mentioned in this data sheet belong to their respective owners.
Winbond Electronics (Shanghai) Ltd.
200336 China
FAX: 86-21-62365998
27F, 2299 Yan An W. Rd. Shanghai,
TEL: 86-21-62365999
Winbond Electronics Corporation Japan
Shinyokohama Kohoku-ku,
Yokohama, 222-0033
FAX: 81-45-4781800
7F Daini-ueno BLDG, 3-7-18
TEL: 81-45-4781881
9F, No.480, Rueiguang Rd.,
Neihu District, Taipei, 114,
Taiwan, R.O.C.
Please note that all data and specifications are subject to change without notice. All the trade
marks of products and companies mentioned in this data sheet belong to their respective owners.
These products are not designed for use in life support appliances, devices, or systems where
malfunction of these products can reasonably be expected to result in personal injury. Winbond
customers using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify Winbond for any damages resulting from such improper use or sale.