W83310S-N/W83310G-N
Winbond
Bus Termination Regulator
W83310S-N
W83310G-N
W83310S-N/W83310G-N
-I-
W83310S-N/W83310G-N
Data Sheet Revision History
PAGES DATES VERSION VERSION
ON WEB MAIN CONTENTS
1 N.A. 02/Dec. 0.51 N.A. The versions before 0.5 are only for internal
reference.
2 3 03/Feb. 0.60 N.A. Recommend circuit update
3 5 03/Mar. 0.61 N.A. AC specification update
4 3 03/May 0.7 N.A. Internal block diagram update
5 4,6 03/Jul. 0.71 N.A. Recommend circuit update
6 4 03/Oct. 0.72 N.A y AC specification update
7 06/Jan.. 0.73 N.A y Add Pb-free part no:W83310G-N
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-N/W83310G-N
Publication Date: January 17, 2005
-1- Revision 0.73
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 2
2. FEATURES ................................................................................................................................. 2
3. APPLICATIONS .......................................................................................................................... 2
4. PIN CONFIGURATION AND DESCRIPTION ............................................................................ 3
5. APPLICATION CIRCUIT............................................................................................................. 4
6. INTERNAL BLOCK DIAGRAM ................................................................................................... 5
7. ELECTRICAL CHARACTERISTICS........................................................................................... 6
7.1 AC CHARACTERISTICS................................................................................................ 6
8. TYPICAL OPERATING WAVEFORM......................................................................................... 7
9. PACKAGE DIMENSION ............................................................................................................. 8
10. ORDERING INFORMATION ...................................................................................................... 9
11. HOW TO READ THE TOP MARKING........................................................................................ 9
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-2- Revision 0.73
1. GENERAL DESCRIPTION
The W83310S-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-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
y Regulates a bi-directional power with driving and sinking capability
y Provides achieve 1.5Amp driving and sinking current
y Power MOSFET integrated
y Low external component count
y Low output voltage offset
y Operates with +5V,+3.3V and +2.5V control power
y Small package
y Low cost and easy to use
3. APPLICATIONS
y DDR Bus Termination Regulator
y Active Termination Bus
y SSTL-2
y SSTL-3
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-3- Revision 0.73
4. PIN CONFIGURATION AND DESCRIPTION
-W83310S-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.
N/C
GND
VSEN
VREF
VTT
PVIN
AVIN
VDDQ
1
2
3
4
8
7
6
5
inbond
W83310S-N
W83301R
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-4- Revision 0.73
5. APPLICATION CIRCUIT
-W83310S-N
2.5V
C2
1500u
VREF
C3
1u
VTT
U1
W83310S-N
1
2
3
4
8
7
6
5
N/C
GND
VSEN
VREF
VTT
PVIN
A
VIN
VDDQ
C1
1u
C4
1000u
3.3V
C5
1u
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-5- Revision 0.73
6. INTERNAL BLOCK DIAGRAM
-W83310S-N
PVIN
A
V
IN
VREF VTT
GND
5K
5K
Control
Logic
C
VSEN
VDDQ
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-6- Revision 0.73
7. ELECTRICAL CHARACTERISTICS
7.1 AC CHARACTERISTICS
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: 0AÆ1.5A
Load Regulation 0.8 % Loading: 0AÆ-
1.5A
VDDQ 2.5
PVIN 2.2 2.5 5.5
Input Voltage Range
AVIN 2.2 3.3 5.5
V
A specific power
sequence should
be followed that is
AVIN>=PVIN during
operating.
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.
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-7- Revision 0.73
8. TYPICAL OPERATING WAVEFORM
W83310S-N VTT offset with a 1.5A/10ms driving pulse current.
W83310S-N VTT offset with a 1.5A/10ms sinking pulse current.
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-8- Revision 0.73
9. PACKAGE DIMENSION
8L SOP 150mil
L
O
c
D
A1
A
e
b
SEATING PLANE
Y
0.25
GAUGE PLANE
EH
E
1
85
4
4.00
0.25
0.51
0.25
E
c
b
A1
3.80
0.19
0.33
0.10
0.157
0.010
0.020
0.010
0.150
0.008
0.013
0.004
MAX.
DIMENSION IN MM
1.75
A
SYMBOL MIN.
1.35
DIMENSION IN INCH
0.069
MIN.
0.053
MAX.
Control demensions are in milmeters .
1.27
0.10
6.20
L
θ
Y
H
010
0.40
5.80
e1.27 BSC
0.050
0.004
0.244
0
0.016
0.228
10
0.050 BSC
E
D4.80 5.00 0.188 0.196
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-9- Revision 0.73
10. ORDERING INFORMATION
PART NUMBER PACKAGE TYPE PRODUCTION FLOW
W83310S-N 8PIN SOP Commercial, 0°C to +70°C
W83310G-N 8PIN SOP(Pb-free package) Commercial, 0°C to +70°C
11. HOW TO READ THE TOP MARKING
W83
310S-N
249OB
W83
310G-N
249OB
Left line: Winbond logo
1st & 2nd line: W883310S-N ,W83310G-N– the part number(W8310G-N is Pb-free package)
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
W83310S-N/W83310G-N
Publication Date: January 17, 2005
-10- Revision 0.73
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components
in systems or equipment intended for surgical implantation, atomic energy control
instruments, airplane or spaceship instruments, transportation instruments, traffic signal
instruments, combustion control instruments, or for other applications intended to support or
sustain life. Further more, Winbond products are not intended for applications wherein failure
of Winbond products could result or lead to a situation wherein personal injury, death or
severe property or environmental damage could occur.
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.
