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CM3212-02DE PDF预览

CM3212-02DE

更新时间： 2024-11-18 19:52:55
品牌 Logo 应用领域
CALMIRCO /
页数 文件大小 规格书
12页 403K
描述
Analog Circuit, 1 Func, ROHS COMPLIANT, MO-229WEEC-1, TDFN-8

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中文翻译

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CM3212-02DE 技术参数

生命周期：Transferred零件包装代码：SON
包装说明：HVSON,针数：8
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.44接口集成电路类型：BUS TERMINATOR SUPPORT CIRCUIT
JESD-30 代码：S-XDSO-N8长度：3 mm
功能数量：1端子数量：8
封装主体材料：UNSPECIFIED封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.65 mm
端子位置：DUAL宽度：3 mm
Base Number Matches：1

CM3212-02DE 数据手册

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PRELIMINARY  
CM3212  
DDR VDDQ and VTT Termination Voltage Regulator  
Features  
Product Description  
The CM3212 is a dual-output low noise linear regulator  
designed to meet SSTL-2 and SSTL-3 specifications  
•
Two linear regulators  
-Maximum 2A current from VDDQ  
-Source and sink up to 2A VTT current  
1.7V to 2.8V adjustable VDDQ output voltage  
0.85V to 1.4V VTT output voltage (tracking at 50% of  
VDDQ)  
for DDR-SDRAM V  
supply and termination voltage  
DDQ  
•
•
V
supply. With integrated power MOSFETs the  
TT  
CM3212 can source up to 2A of VDDQ continuous  
current, and source or sink up to 2A VTT continuous  
current. The typical dropout voltage for VDDQ is  
500mV at 2A load current.  
•
•
•
•
•
Buffered VREF output  
500mV typical VDDQ dropout voltage at 2A  
Excellent load and line regulation, low noise  
Meets JEDEC DDR-I and DDR-II memory power spec  
Linear regulator design requires no inductors and has  
low external component count  
The CM3212 provides excellent full load regulation and  
fast response to transient load changes. It also has  
built-in over-current limits and thermal shutdown at  
170°C.  
•
•
•
•
Integrated power MOSFETs  
Dual purpose ADJ/Shutdown pin  
Enable VTT pin for sleep or suspend to RAM function  
Built-in over-current limit and thermal shutdown for  
VDDQ and VTT  
The CM3212 supports Suspend-To-RAM (STR) and  
ACPI compliance with Shutdown Mode which tri-states  
VTT to minimize quiescent system current.  
•
•
•
•
Fast transient response  
Low quiescent current  
TDFN-8 RoHS compliant lead-free package  
SOIC-8 RoHS compliant lead-free package  
The CM3212 is available in a space saving TDFN-8  
and SOIC-8 surface mount packages. Low thermal  
resistance allows them to withstand high power  
dissipation at 85°C ambient. The CM3212 can operate  
over the industrial ambient temperature range of –40°C  
to 85°C.  
Applications  
•
•
•
•
•
•
•
DDR memory and active termination buses  
Desktop computers, servers  
Residential and enterprise gateways  
DSL modems  
Routers and switches  
DVD recorders, LCD TV and STB  
3D AGP cards  
Typical Application  
VIN = 3.0V to 3.6V  
VDDQ  
= 2.5V/2A  
CIN  
CDDQ  
4.7μ/10V  
220μ/10V  
cer  
VDDQ  
VDDQ  
4.7μ  
10V  
cer  
220μ  
10V  
C hip  
S et  
DL0  
DLn  
1
2
8
7
VIN  
VDDQ  
RT0  
R1  
10k  
VTT  
EN_VTT  
CM3212  
6
5
3
4
NC  
ADJSD  
RTn  
R2  
10k  
DDR  
REF Memory  
GND  
VREF  
S/D  
CTT  
VTT  
= 1.25V/2A  
CREF  
4.7μ  
10V  
cer  
220μ/10V  
0.1μF/10V  
© 2006 California Micro Devices Corp. All rights reserved.  
01/04/07  
490 N. McCarthy Blvd., Milpitas, CA 95035-5112  
l
Tel: 408.263.3214  
l
Fax: 408.263.7846  
l
www.cmd.com  
1
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