Nuvoton Bus Termination Regulator W83310DG W83310DG Data Sheet Revision History NO PAGES DATES VERSION MAIN CONTENTS 1. All June, 2007 1.0 Remove non Pb-free part no: W83310DS 2 All Dec., 2008 1.01 Change to Nuvoton document format 3 4 5 6 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. Nuvoton customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nuvoton for any damages resulting from such improper use or sales. -I- Publication Date: Dec., 2008 Revision 1.01 W83310DG Table of Content1. GENERAL DESCRIPTION .............................................................................................................. 1 2. FEATURES ...................................................................................................................................... 1 3. APPLICATIONS ............................................................................................................................... 1 4. PIN CONFIGURATION AND DESCRIPTION .................................................................................. 2 5. APPLICATION CIRCUIT .................................................................................................................. 3 6. INTERNAL BLOCK DIAGRAM ........................................................................................................ 3 7. ABSOLUTE MAXIMUM RATINGS................................................................................................... 4 8. RECOMMENDED OPERATING CONDITIONS .............................................................................. 4 9. ELECTRICAL CHARACTERISTICS ................................................................................................ 4 10. TYPICAL OPERATING WAVEFORMS ............................................................................................ 5 11. PACKAGE DIMENSION................................................................................................................... 8 12. ORDERING INFORMATION............................................................................................................ 9 13. TOP MARKING SPECIFICATION.................................................................................................... 9 -II- Publication Date: Dec., 2008 Revision 1.01 W83310DG 1. GENERAL DESCRIPTION The W83310DG is a linear regulator which provides power with the capability of continuous 2.0Amp bi-directional sinking and driving current for a high speed bus terminator application. The chip simply implements a stable power supply which tracks dynamically half of the input power. The output of the power supply follows the input of VREF1and VREF2 pins. Setting the BOOT_SEL pin can decide to follow VREF1 or VREF2.. The W83310DG is promoted with small footprint 8-SOP 150mil power package. The design of the W83310DG provides a high integration, high performance, and costeffective solution. 2. FEATURES z Support DDRI (1.25VTT), DDRII (0.9VTT) and DDRIII (0.75VTT) Requirements z Sink and Source 2A Continuous Current z Integrated Power MOSFET z Adjustable VOUT by External Resistors z Low External Component Count z Low Output Voltage Offset z Short Circuit Protection z 0 to 70 Ambient Operating Temperature Range z SOP-8 (Exposed Pad) Package, Lead (Pb) Free 3. APPLICATIONS z Desktop PCs, Notebooks, and Workstations z Graphics Card Memory Termination z DDRI, DDRII and DDRIII Memory Systems -1- Publication Date: Dec., 2008 Revision 1.01 W83310DG 4. PIN CONFIGURATION AND DESCRIPTION VIN 1 8 VREF2 GND 2 7 ENABLE VREF1 3 6 VCNTL VOUT 4 5 BOOT_SEL W83310DG (Top View) SYMBOL PIN I/O VIN 1 I GND 2 FUNCTION Main power input pin which supplies current to the output pin. Ground Internal reference voltage source1. VREF1 3 I Reference voltage on the pin will be referred with the pin value when BOOT_SEL pin is set High. VOUT 4 O Voltage output pin which is regulated to VREF voltage. BOOT_SEL 5 I The signal for the chip reference voltage source selection. The function is designed for Intel(R) Springdale chipset GMCH_VTT application. VCNTL 6 I Power for internal control logic circuitry. ENABLE 7 I Chip function enable pin. 1: Enable; 0: Disable Internal reference voltage source2. VREF2 8 I Reference voltage on the pin will be referred with the pin value when BOOT_SEL pin is set Low. -2- Publication Date: Dec., 2008 Revision 1.01 W83310DG 5. APPLICATION CIRCUIT VRAM VRAM U1 8 1 C1 R1 10K 1000u 3 VOUT Enable# Q1 2 2N7002 C2 4 R2 10K 1u VREF2 GND ENABLE 2 3 1 VIN VREF VCNTL VOUT BOOTSEL C3 C4 1u 1500u 7 3VDUAL 6 5 C5 1u W83310DG 6. INTERNAL BLOCK DIAGRAM VCNTL VIN ENABLE VREF1 VREF2 Control Logic Circuit Control Logic Circuit VOUT BOOT_SEL GND -3- Publication Date: Dec., 2008 Revision 1.01 W83310DG 7. ABSOLUTE MAXIMUM RATINGS RATING UNIT Input Voltage ITEM VIN SYMBOL -0.3 to 5 V Control Logic Input Voltage VCNTL -0.3 to 5 V 2 kV Machine Mode 200 V Latch-Up 100 mA 75 /W -65 to 150 Human Body Mode Electrostatic discharge protection Package Thermal Resistance JA Storage Temperature Range 8. RECOMMENDED OPERATING CONDITIONS ITEM MIN MAX 1.5 3.6 3 3.6 Operating Temperature Range 0 70 Junction Temperature Range 0 125 Input Voltage SYMBOL VIN VCNTL UNIT V 9. ELECTRICAL CHARACTERISTICS TA = 25, VCNTL= 3.3 V, VIN=2.5V/1.8V/1.5V, VREF=1.25V/0.9V/0.75V, COUT=1000uF, all voltage outputs unloaded (unless otherwise noted) PARAMETER TEST CONDITION MIN TYP MAX UNITS Input ICNTL IOUT=0A -- 0.5 1 mA Output Offset Voltage VOS IOUT=0A -5 0 5 mV Load Regulation VL IOUT=0 +2A -40 -- 40 IOUT=-0 2A -40 -- 40 -- 4 -- A 0.8 -- -- V VCNTL Operating Current Output (DDRI / DDRII / DDRIII) mV Protection Short Current Limit ILIM VOUT short to ground VIH Enable VREF1/2 Shutdown Mode Shutdown Threshold -4- Publication Date: Dec., 2008 Revision 1.01 W83310DG PARAMETER TEST CONDITION MIN TYP MAX UNITS VIL Disable -- -- 0.2 VIH High 1 -- -- VIL Low -- -- 0.2 VIH Enable 1 -- -- VIL Disable -- -- 0.2 Input Pins Trigger Level BOOT_SEL Pin ENABLE Pin V V 10. TYPICAL OPERATING WAVEFORMS z Transient Response, VCNTL=3.3V, VIN=2.5V, VREF=1.25V, VOUT=1.25V 2A Source 2A Sink z Transient Response, VCNTL=3.3V, VIN=1.8V, VREF=0.9V, VOUT=0.9V 2A Source 2A Sink -5- Publication Date: Dec., 2008 Revision 1.01 W83310DG z Transient Response, VCNTL=3.3V, VIN=1.5V, VREF=0.75V, VOUT=0.75V 2A Sink 2A Source z Output Short Circuit Protection, VCNTL=3.3V, VOUT shorted to ground VIN=2.5V VOUT=1.25V -6- Publication Date: Dec., 2008 Revision 1.01 W83310DG VIN=1.8V VOUT=0.9V VIN=1.5V VOUT=0.75V -7- Publication Date: Dec., 2008 Revision 1.01 W83310DG 11. PACKAGE DIMENSION -8- Publication Date: Dec., 2008 Revision 1.01 W83310DG 3/4 TAPING SPECIFICATION 8 Pin ESOP Package 12. ORDERING INFORMATION PART NUMBER PACKAGE TYPE W83310DG 8PIN ESOP(Pb-free package) SUPPLIED AS PRODUCTION FLOW E Shape: 100 units/Tube Commercial, 0 to +70 T Shape: 2,500 units/T&R 13. HOW TO READ THE TOP MARKING W83 310DG 706XY Left line: Winbond logo (Nuvoton) 1st & 2nd line: W83310DG - the part number 3rd line: Tracking code 706 X Y 706: Packages assembled in Year 07', week 06 X: Assembly house ID Code Y: The IC version Code -9- Publication Date: Dec., 2008 Revision 1.01 W83310DG Important Notice Nuvoton 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, Nuvoton products are not intended for applications wherein failure of Nuvoton products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Nuvoton customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nuvoton for any damages resulting from such improper use or sales. -10- Publication Date: Dec., 2008 Revision 1.01