Datasheet > CM3202

CM3202

更新时间： 2024-11-18 04:12:19

品牌	Logo	应用领域
CALMIRCO		稳压器双倍数据速率
页数	文件大小	规格书
12页	351K
描述
DDR VDDQ and Termination Voltage Regulator

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中文翻译

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数据手册

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CM3202 数据手册

PRELIMINARY

CM3202

DDR V_DDQand Termination Voltage Regulator

Product Description

Features

•

Two linear regulators

The CM3202 is a dual-output low noise linear regulator

designed to meet SSTL-2 and SSTL-3 specifications

-Maximum 2A current from V_DDQ

-Source and sink up to 2A V_TTcurrent

1.7V to 2.8V adjustable V_DDQoutput voltage

500mV typical V_DDQdropout voltage at 2A

V_TTtracking at 50% of V_DDQ

Excellent load and line regulation, low noise

Fast transient response

Meet JEDEC DDR-I and DDR-II memory power spec.

Linear regulator design requires no inductors and has

low external component count

Integrated power MOSFETs

Dual purpose ADJ/Shutdown pin

Built-in over-current limit with short-circuit foldback and

thermal shutdown for V_DDQand V_TT

Fast transient response

for DDR-SDRAM V

supply and termination voltage

DDQ

•

supply. With integrated power MOSFET’s, the

CM3202 can source up to 2A of V

source or sink up to 2A V current. The typical drop-

current, and

DDQ

•

out voltage for V

is 500 mV at 2A load current.

DDQ

The CM3202 provides fast response to transient load

changes. Load regulation is excellent, less than 1%,

from no load to full load. It also has built-in over-current

limits and thermal shutdown at 170°C.

•

The CM3202 is packaged in an easy-to-use TDFN-8

and SOIC-8. Low thermal resistance (55°C/W) allows it

•

(1)

to withstand 1.55W

can operate over the industrial ambient temperature

range of –40°C to 85°C.

dissipation at 85°C ambient. It

5mA quiescent current

TDFN-8 and SOIC-8 packages for high performance

thermal dissipation and easy PC board layout

Optional RoHS Compliant Lead-free packaging

•

Applications

Note⁽¹⁾

If TDFN-8 is mounted on a double-sided printed circuit board with

two square inches of copper area, it can to withstand 2W dissipation

at 85°C ambient then.

•

DDR memory and active termination buses

Desktop Computers, Servers

Residential and Enterprise Gateways

DSL Modems

Routers and Switchers

DVD recorders

3D AGP cards

LCD TV and STB

Typical Application

3.3V

VDDQ

220u

4.7u

220u

4.7u

C hip

S et

DL0

DLn

VIN

VDDQ

RT0

VIN

887

CM3202

VTT

ADJSD

RTn

DDR

^REFMemory

845

GND

220u

4.7u

S/D

1.25V, 2.5A

VTT

V_REF

05/08/06 490 N. McCarthy Blvd., Milpitas, CA 95035-5112

Tel: 408.263.3214

Fax: 408.263.7846

www.cmd.com

12 3 4 5 6 7...12

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与CM3202相关器件

型号	品牌	获取价格	描述	数据表
CM3202-00DE	CALMIRCO	获取价格	DDR VDDQ and Termination Voltage Regulator
CM3202-00DE	ONSEMI	获取价格	DDR VDDQ 和端接稳压器
CM3202-00SM	CALMIRCO	获取价格	DDR VDDQ and Termination Voltage Regulator
CM3202-02DE	ONSEMI	获取价格	DDR VDDQ and VTT Termination Voltage Regulator
CM3202-02DE	CALMIRCO	获取价格	Fixed/Adjustable Positive Standard Regulator, 2 Output, 2.45V1 Min, 1.225V2 Min, 2.55V1 Ma
CM3202-02SM	CALMIRCO	获取价格	Fixed/Adjustable Positive Standard Regulator, 2 Output, 2.45V1 Min, 1.225V2 Min, 2.55V1 Ma
CM3205	CALMIRCO	获取价格	DDR VDDQ and Termination Voltage Regulator
CM3205-00TN	CALMIRCO	获取价格	DDR VDDQ and Termination Voltage Regulator
CM3205-00TP	CALMIRCO	获取价格	DDR VDDQ and Termination Voltage Regulator
CM3211	CML	获取价格	T-1 Wire Terminal (standard)

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