SC2598 datasheet(1/13 Pages) SEMTECH

No de pièce	SC2598

Description	Low Voltage DDR Termination Regulator

PDF	13 Pages

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Fabricant	SEMTECH [Semtech Corporation]

Site Internet	http://www.semtech.com

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POWER MANAGEMENT

1

SC2598

Low Voltage DDR

Termination Regulator

Features

Input to linear regulator (VIN): 1.0V to 3.6V

Output (VTT): 0.5V to 1.8V

Bias Voltage (VDD): 2.35V to 3.6V

Up to 3A sink or source from VTT for DDR through

DDR4

+ 1% over temperature (with respect to VDDQ/2, in-

cluding internal resistor divider variation) VREF and

VTT

Logic-level enable input

Built in soft-start

Thermal shutdown with auto-restart

Over current protection

Minimal output capacitance

Package: SOIC8-EDP

Applications

DDR Memory Termination



Description

The SC2598 is designed to meet the latest JEDEC specifi-

cation for low power DDR3 and DDR4, while also support-

ing DDR and DDR2. The SC2598 regulates up to + 3A for

VTT and up to + 40mA for VREF.

The SC2598 also provides an accuracy of +1% over tem-

perature (which takes into account the internal resistor

divider) for VREF and VTT for the memory controller and

DRAM.

SC2598 protection features include thermal shutdown

with auto-restart for VTT and over-current limit for both

VTT and VREF.

Under-Voltage-Lock-Out circuits are included to ensure

that the output is off when the bias voltage falls below its

threshold, and that the part behaves elegantly in power-

up or power-down.

The low external parts count combined with industry

leading specifications make SC2598 an attractive solution

for DDR through DDR4 termination.

VIN

VD D

GND

VR EF

V TTS

VTT

V DDQ

EN

V DDQ

C VDD

C IN

C VTT

C VREF

(1)

1μF

0.1μF

2x10μF

3x10μF

Typical Application Circuit

Rev. 2.0

Note:

(1)

This component is optional.

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