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SC2616 Datasheet(PDF) 1 Page - Semtech Corporation |
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SC2616 Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 17 page  POWER MANAGEMENT 1 www.semtech.com SC2616 Complete DDR Power Solution Features Applications Revision 3, March 2003 Typical Application Circuit Description The SC2616 is a fully integrated DDR power solution pro- viding power for the VDDQ and the VTT rails. The SC2616 also completely adheres to the ACPI sleep state power requirements. A synchronous buck controller provides the high current of the VDDQ at high efficiency, while a linear sink/source regulator provides the termination voltage with 2 Amp Source/Sink capability. This approach makes the best trade-off between cost and perfor- mance. Additional logic and UVLOs complete the func- tionality of this single chip DDR power solution in compli- ance with S3 and S5 motherboard signals. The SC2616 is capable of sourcing up to 20A at the switcher output, and 2A source/sink at the VTT output. The MLP package provides excellent thermal impedance while keeping small footprint. VDDQ current limit as well as 3 independent thermal shutdown circuits assure safe operation under all fault conditions. Power solution for DDR memory per ACPI motherboard specification High speed data line termination Memory cards High efficiency (90%) switcher for VDDQ supplies 20 Amps High current gate drives Single chip solution complies fully with ACPI power sequencing specifications Internal S3 state LDO supplies high standby VDDQ current (0.65Amp Min.) ACPI sleep state controlled 2 Amp VTT source/sink capability UVLO on 5V and 12V Independent thermal shutdown for VDDQ and VTT Fast transient response 18 pin MLP package 0.1uF 10k VTT 1uF 10k 12V 0.1uF S5 L Suspend to RAM U4 SC2616 1 8 6 7 4 3 2 5 9 18 17 16 15 14 13 12 11 10 FB VDDQIN VTT VDDQSTBY 5VSBY LGND VTTSNS VTT 5VCC SS/EN COMP 12VCC TG BG PGND AGND SLP_S3 SLP_S5 Suspend to disk 5V STBY S3 0.1uF 10uF Cout Cin 0.1uF VDDQ 0.1uF 5V |
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Similar Description - SC2616 |
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