SC2596 Semtech Corporation, SC2596 Datasheet
SC2596
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SC2596 Summary of contents
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... The SC2596 is an integrated linear DDR termination device, which provides a complete solution for DDR termination regulator designs; while meeting the JEDEC requirements of SSTL-2 and SSTL-18 specifications for DDR-SDRAM termination. The SC2596 regulates up to +/- 2.5A for DDR-I and +/- 1.5A for DDR-II application requirements. www.DataSheet4U.com V is regulated to track the V TT current range with shoot through protection ...
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... SC2596 PRELIMINARY ...
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... SC2596 ...
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... Semtech Corp. AVCC AVCC VDDQ//PVCC VDDQ//PVCC VREF VREF VTT VTT Shut down. Shut down by EN. AVCC AVCC PVCC//VDDQ PVCC//VDDQ VTT VTT IO IO Transient with +/- 1A load 4 SC2596 PRELIMINARY AVCC AVCC PVCC PVCC EN EN VTT VTT www.semtech.com ...
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... Maximum Sourcing Current vs AVCC. (VDDQ=1.8V, PVCC=2.5V) 3.0 2.5 2.0 1.5 1.0 2 2.5 3 Maximum Sourcing Current vs AVCC. (VDDQ=1.8V, PVCC=1.8V) © 2007 Semtech Corp. 3.5 4 4.5 5 5.5 AVCC (V) 3.5 4 4 (V) 5 4.0 3.5 3.0 2.5 2.0 2 2.5 3 3.5 4 AVCC (V) Maximum Sinking Current vs AVCC. (VDDQ=1.8V, PVCC=2.5V) 4.0 3.5 3.0 2.5 2.0 2 2.5 3 3.5 4 AVCC (V) Maximum Sinking Current vs AVCC. (VDDQ=1.8V, PVCC=1.8V) SC2596 4.5 5 5.5 4.5 5 5.5 www.semtech.com ...
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... EVB provided with EDP SOIC-8 package. AVCC AVCC AVCC AVCC (3) Lead free product. This product is fully WEEE and RoHS compli VDDQ VDDQ VDDQ VDDQ ant. 6 SC2596 PRELIMINARY ...
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... SC2596 ...
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... DDR1 and DDR2 applications. AVCC and PVCC can be tied together for DDR1 and can also be separated for DDR2. SC2596 regulates VTT to the voltage of VREF. VTT will sink or source upto 2.5A. Internal shoot-through protec- tion ensure both top and bottom MOSFET will not con- duct while maintaining fast source-to-sink load transient ...
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... AVCC and PVCC are the input supply pins for the SC2596. AVCC is supply voltage for all the internal control circuitry. The AVCC voltage has to be greater than its UVLO thresh- old voltage (2.1V typical) to allow the SC2596 to be nor- mal operation. The PVCC pin provides the rail voltage from where the VTT pin draws load current ...
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... If AVCC and PVCC rails are tied together, then the 8 VTT VTT VDDQ cannot lead the AVCC and PVCC. 2.5V 0.9V 7 PVCC 6 AVCC VDDQ 1.8V 5 VDDQ Cin1 Cin2 Cout 1uF 100uF 220uF 10 SC2596 PRELIMINARY SC2596 1 8 GND VTT PVCC 3 6 VSENSE AVCC VDDQ 1. VREF VDDQ 1M Cin1 Cref 1uF 10nF ...
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... POWER MANAGEMENT Application Information (Cont.) Layout guidelines 1) The EDP SO-8 package of SC2596 can improve the θ thermal impedance ( ) significantly. A suitable thermal JC pad should be add when PCB layout. Some thermal vias are required to connect the thermal pad to the PCB ground layer. This will improve the thermal performance. ...
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... SC2596 PRELIMINARY VTT 0. www.semtech.com ...
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... L .016 .028 .041 0.40 0.72 1.04 (.041) (1.05 aaa .004 0.10 bbb .010 0.25 ccc .008 0. GAGE PLANE 0. (L1) A DETAIL A -H- DIMENSIONS DIM INCHES MILLIMETERS (.205) (5.20 .098 .201 E F .096 G .118 P .050 X .024 Y .087 Z .291 SC2596 2.49 5.10 2.44 3.00 1.27 0.60 2.20 7.40 www.semtech.com ...