w83312sn Winbond Electronics Corp America, w83312sn Datasheet
w83312sn
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w83312sn Summary of contents
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... Nuvoton Bus Termination Regulator W83312SN ...
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... BLOCK DIAGRAM ........................................................................................................................... 2 4. PIN CONFIGURATION AND TYPICAL APPLICATION CIRCUIT 5. PIN DESCRIPTION .......................................................................................................................... 3 6. FUNCTIONAL DESCRIPTION ........................................................................................................ 4 7. ELECTRICAL CHARACTERISTIC 8. TYPICAL OPERATING WAVEFORMS 9. PACKAGE DIMENSION ................................................................................................................ 22 10. ORDERING INFORMATION .......................................................................................................... 23 11. TOP MARKING SPECIFICATION 12. REVISION HISTORY ..................................................................................................................... 24 -Table of Content- .................................................. 2 .................................................................................................. 7 ........................................................................................... 9 ................................................................................................. 23 -I- W83312SN Publication Date: Mar., 2010 Revision A5 ...
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... GENERAL DESCRIPTION The W83312SN is a linear regulator which provides a power achieves peak 3.0Amp bi- directional sinking and sourcing capability for a high speed bus terminator application. The chip simply implements a stable power supply which tracks half of input power dynamically for bus terminator with a single chip. The W83312SN is promoted with small footprint 8-SOP 150mil power package ...
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... BLOCK DIAGRAM Current Limit Protection VREF Thermal Shutdown 4. PIN CONFIGURATION AND TYPICAL APPLICATION CIRCUIT VIN 1 2 GND VREF 3 4 VOUT VCNTL VIN Control Logic VCNTL W83312SN (Top View) Publication Date: Mar., 2010 -2- W83312SN VOUT GND Revision A5 ...
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... VCNTL 6 I decoupling capacitor with 1uF is required. GND 2 Ground. Connect to negative terminal of the output capacitor connection. VCNTL=3.3V/5V C CNTL VIN VCNTL VREF VTT = VDDQ (R1+R2) VOUT GND C OUT FUNCTION voltage for DRAM) as Publication Date: Mar., 2010 -3- W83312SN power source is Revision A5 ...
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... VEXT R1 R2 The W83312SN supports wide VREF voltage input range, making it versatile and idea for many types of low power LDO applications. The dropout voltage is the input voltage minus output voltage that produces 2% decrease in output voltage, where The output voltage range depends on VCNTL voltage and output loading which means higher VCNTL voltage can support higher output voltage and higher output loading ...
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... VOUT is shut off. The shutdown is a non-latch protection. 6.6 Thermal Design Since the W83312SN is a linear regulator, the VOUT current flows in both source and sink directions, thereby dissipating power from the device. When the device is sourcing current, the 3 3 ...
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... Layout Consideration Consider the following points before starting the W83312SN layout design. Fig. 6-4 shows the suggestion of minimum land pattern. Fig. 6-5 shows the recommended PCB layout. Using “dog bone” copper patterns on the top layer can increase efficiency of heat dissipating. ...
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... Human Body Mode (Note2) Machine Mode ±200 Latch-Up ±100 -65 to 150 RATING Internal Limited 75 JA SYMBOL MIN VIN 1.2 VCNTL 3 VREF 0.6 Sourcing 0 Sinking 0 Sourcing 0 Sinking 0 -7- W83312SN C CNTL For heat dissipatin C OUT VOUT UNIT ± °C UNIT W °C/W MAX UNIT 5.5 V 5.5 3 ...
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... I =0 → -2.5A OUT I In any VIN LIM (Note6) T 3.3V < VCNTL < ∆T 3.3V < VCNTL < Enable IH V Disable IL =75˚C/W junction to ambient with minimum PCB footprint. JA -8- W83312SN °C 85 °C 125 . VCNTL= 3.3V/5V, (Note4) MIN TYP MAX UNITS 0.5 0.7 mA 0.7 1 0.3 0.5 mA 0.3 0 ...
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... Ensured by design, no production tested. 8. TYPICAL OPERATING WAVEFORMS VIN=2.5V, VCNTL=3.3V, VOUT=1.25V @ 3A Sourcing VIN=2.5V, VCNTL=5V, VOUT=1.25V @ 3A Sourcing , and the ambient temperature exceeding the JA A VIN=2.5V, VCNTL=3.3V, VOUT=1.25V @ 2.5A Sourcing VIN=2.5V, VCNTL=5V, VOUT=1.25V @ 2.5A Sourcing Publication Date: Mar., 2010 -9- W83312SN , J(MAX) Revision A5 ...
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... VIN=1.8V, VCNTL=3.3V, VOUT=0. Sourcing VIN=1.8V, VCNTL=5V, VOUT=0. Sourcing VIN=1.5V, VCNTL=3.3V, VOUT=0.75V @ 3A Sourcing VIN=1.8V, VCNTL=3.3V, VOUT=0.9V @ 2.5A Sourcing VIN=1.8V, VCNTL=5V, VOUT=0.9V @ 2.5A Sourcing VIN=1.5V, VCNTL=3.3V, VOUT=0.75V @ 2.5A Sourcing Publication Date: Mar., 2010 -10- W83312SN Revision A5 ...
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... VIN=1.5V, VCNTL=5V, VOUT=0.75V @ 3A Sourcing VIN=1.2V, VCNTL=3.3V, VOUT=0. Sourcing W83312SN VIN=1.5V, VCNTL=5V, VOUT=0.75V @ 2.5A Sourcing VIN=1.2V, VCNTL=3.3V, VOUT=0.6V @ 2.5A Sourcing Publication Date: Mar., 2010 -11- Revision A5 ...
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... VIN=1.2V, VCNTL=5V, VOUT=0. Sourcing VIN=2.5V, VCNTL=3.3V, VOUT=1.25V @ 3A Sinking VIN=2.5V, VCNTL=5V, VOUT=1.25V @ 3A Sinking VIN=1.2V, VCNTL=5V, VOUT=0.6V @ 2.5A Sourcing VIN=2.5V, VCNTL=3.3V, VOUT=1.25V @ 2.5A Sinking VIN=2.5V, VCNTL=5V, VOUT=1.25V @ 2.5A Sinking Publication Date: Mar., 2010 -12- W83312SN Revision A5 ...
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... VIN=1.8V, VCNT3O. Sinking VIN=1.8V, VCNTL=5V, VOUT=0. Sinking VIN=1.5V, VCNTL=3.3V, VOUT=0.75V @ 3A Sinking W83312SN VIN=1.8V, VCNTL=3.3V, VOUT=0.9V @ 2.5A Sinking VIN=1.8V, VCNTL=5V, VOUT=0.9V @ 2.5A Sinking VIN=1.5V, VCNTL=3.3V, VOUT=0.75V @ 2.5A Sinking Publication Date: Mar., 2010 -13- Revision A5 ...
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... VIN=1.5V, VCNTL=5V, VOUT=0.75V @ 3A Sinking VIN=1.2V, VCNTL=3.3V, VOUT=0. Sinking VIN=1.2V, VCNTL=5V, VOUT=0. Sinking VIN=1.5V, VCNTL=5V, VOUT=0.75V @ 2.5A Sinking VIN=1.2V, VCNTL=3.3V, VOUT=0.6V @ 2.5A Sinking VIN=1.2V, VCNTL=5V, VOUT=0.6V @ 2.5A Sinking Publication Date: Mar., 2010 -14- W83312SN Revision A5 ...
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... VIN=2.5V, VCNTL=3.3V, VOUT=1.25V, VOUT short to GND VIN=2.5V, VCNTL=3.3V, VOUT=1.25V, VOUT short to VIN W83312SN VIN=2.5V, VCNTL=5V, VOUT=1.25V, VOUT short to GND VIN=2.5V, VCNTL=5V, VOUT=1.25V, VOUT short to VIN Publication Date: Mar., 2010 -15- Revision A5 ...
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... VIN=1.8V, VCNTL=3.3V, VOUT=0.9V, VOUT short to GND VIN=1.8V, VCNTL=3.3V, VOUT=0.9V, VOUT short to VIN VIN=1.5V, VCNTL=3.3V, VOUT=0.75V, VOUT short to GND VIN=1.8V, VCNTL=5V, VOUT=0.9V, VOUT short to GND VIN=1.8V, VCNTL=5V, VOUT=0.9V, VOUT short to VIN VIN=1.5V, VCNTL=5V, VOUT=0.75V, VOUT short to GND Publication Date: Mar., 2010 -16- W83312SN Revision A5 ...
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... VIN=1.5V, VCNTL=3.3V, VOUT=0.75V, VOUT short to VIN VIN=1.2V, VCNTL=3.3V, VOUT=0.6V, VOUT short to GND VIN=1.2V, VCNTL=3.3V, VOUT=0.6V, VOUT short to VIN W83312SN VIN=1.5V, VCNTL=5V, VOUT=0.75V, VOUT short to VIN VIN=1.2V, VCNTL=5V, VOUT=0.6V, VOUT short to GND VIN=1.2V, VCNTL=5V, VOUT=0.6V, VOUT short to VIN Publication Date: Mar., 2010 ...
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... DDR2 @ VCNTL=5V 410 -40 - Temperature (°C) VCNTL Current vs. Temperature 590 570 550 530 510 490 470 450 LP DDR @ VCNTL=3.3V 430 LP DDR @ VCNTL=5V 410 -40 - Temperature (°C) Publication Date: Mar., 2010 -18- W83312SN 60 80 100 120 60 80 100 120 Revision A5 ...
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... Turn On @ VCNTL=3.3V Turn On @ VCNTL=5V 0.1 Turn Off @ VCNTL=3.3V Turn Off @ VCNTL=5V 0.05 0 -40 - 100 120 Temperature (°C) W83312SN VIN Current vs. Temperature 220 DDR2 @ VCNTL=3.3V 210 DDR2 @ VCNTL=5V 200 190 180 170 160 150 -40 - Temperature (°C) VIN Current vs. Temperature ...
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... Source @ VCNTL=5V 4.5 Sink @ VCNTL=3.3V Sink @ VCNTL=5V 4 3.5 3 2.5 2 -40 - Temperature (°C) LP DDR Current Limit vs. Temperature 5 Source @ VCNTL=3.3V Source @ VCNTL=5V 4.5 Sink @ VCNTL=3.3V Sink @ VCNTL=5V 4 3.5 3 2.5 2 -40 - Temperature (°C) Publication Date: Mar., 2010 -20- W83312SN 60 80 100 120 60 80 100 120 Revision A5 ...
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... DDR1 @ VCNTL=3.3V DDR1 @ VCNTL=5V -4.00 -5.00 -40 - 100 120 Temperature (°C) Normalized VOFFSET vs. Temperature 5.00 4.00 3.00 2.00 1.00 0.00 -1.00 -2.00 -3.00 DDR3 @ VCNTL=3.3V -4.00 DDR3 @ VCNTL=5V -5.00 -40 - 100 120 Temperature (°C) W83312SN Normalized VOFFSET vs. Temperature 5.00 4.00 3.00 2.00 1.00 0.00 -1.00 -2.00 -3.00 DDR2 @ VCNTL=3.3V DDR2 @ VCNTL=5V -4.00 -5.00 -40 - Temperature (°C) Normalized VOFFSET vs. Temperature 5.00 4.00 3.00 2.00 1.00 0.00 -1.00 -2.00 -3.00 LP DDR @ VCNTL=3 ...
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... PACKAGE DIMENSION PACKAGE DIMENSION SOP8-EP (150mil) W83312SN Publication Date: Mar., 2010 -22- Revision A5 ...
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... TAPING SPECIFICATION Note: W83312SN L/F size is D1-3 & E1-3 dimension SOP8-EP Package 10. ORDERING INFORMATION Part Number Package Type W83312SN 8PIN SOP8-EP (Green Package) 11. TOP MARKING SPECIFICATION W83312SN 752ABBX st 1 Line: Nuvoton logo nd 2 Line: W83312SN (Part number line: Tracking code 752: packages assembled in Year 2007, week 52 ...
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... Update the linear regulator chart & VIN Recommended Range 1. Updated operating temperature range All 2. Updated 6.2 General Regulator 3. Updated Typical Operating Waveforms 6 Correct Typo, add PCB Layout Suggestion 1. Add suggestion land pattern 6,20 2. Update the SOP8-EP package outline Important Notice Publication Date: Mar., 2010 -24- W83312SN Revision A5 ...