SC2595STRT(2007) Просмотр технического описания (PDF) - Semtech Corporation

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производитель

SC2595STRT
(Rev.:2007)

Integrated Linear DDR Termination Regulator

Semtech Corporation 

SC2595

POWER MANAGEMENT

Notes:

(1) Can be used for vias.

(2) Power up of AV , PV and V supplies.

CC

CC

DDQ

(a) The preferred mode of operation is when the AVCC, PVCC and VDDQ pins are tied together to a single supply.

(b) If and when AVCC, PVCC pins are tied to a supply separate to that of the VDDQ supply pin; then the VDDQ supply should

lead AVCC, PVCC supply or the VDDQ supply and the AVCC, PVCC supply should rise simultaneously.

(c) If the AVCC, PVCC and VDDQ supply pins are connected in a way such that, AVCC, PVCC supplies precedes VDDQ supply;

then V output precedes V . This can cause the SDRAM device to latch-up, which may cause permanent

TT

DDQ

damage to the SDRAM.

Block Diagram

AVCC

VDDQ

VREF

GND

-

OUT

+

UVLO

+

OUT

-

Driver

Circuit

PVCC

VTT

VSENSE

NC

© 2007 Semtech Corp.

5

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