SC2615 datasheet(1/13 Pages) SEMTECH

tên linh kiện	SC2615

Giải thích chi tiết về linh kiện	Complete DDR Power Solution

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nhà sản xuất	SEMTECH [Semtech Corporation]

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POWER MANAGEMENT

1

www.semtech.com

SC2615

Complete DDR Power Solution

Applications

Revision 2, April 2003

Typical Application Circuit

Description

The SC2615 is a fully integrated, Three in One, Linear

Linear

DDR power solution providing power for the VDDQ and

the VTT rails. The SC2615 completely adheres to the

ACPI sleep state power requirements per IntelR

motherboard specifications. A linear regulator controller

provides the high current of the VDDQ during S0, via an

external Power MOSFET, while an internal 1.8A (min) sink/

source regulator supplies the termination voltage.

In addition to these two blocks, an Internal LDO provides

VDDQ power during S3, capable of sourcing 650 mA.

The SC2615 uses IntelR defined Latched BF_CUT signal

which is also used to drive the external Blocking MOSFET.

Additional logic, two UVLOs and three thermal shutdown

circuits assure reliability of this single chip DDR power

solution. A Power Good Output indicates the rails are in

regulation.

A Soft Start/Enable pin assures proper startup and allows

external shutdown control. The MLP package provides

excellent thermal impedance while keeping a small

footprint.

DDR power solution for IntelR motherboard

applications

High speed data line termination

Graphic cards

Disk drives

Single chip solution adheres to ACPI sleep state

requirements using BF_CUT

UVLO on 3.3V and 12V

Internal S3 state LDO for VDDQ supplies 650 mA

Dual thermal shutdown

Fast transient response

Internal VTT regulator Sinks and Sources 1.8A

(Min)

Power good output

18 pin MLP package

Features

PWRGD

SC2615

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

3.3VCC

SS/EN

NC

12VCC

TG

NC

AGND

BF_CUT

PGOOD

BF_CUT

5V

5V STBY

BF_CUT

Cout

Cin

12V

VDDQ

VTT

PWRGD

1uF

0.1uF

Số phần tương tự - SC2615

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