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CM3131-01SB PDF预览

CM3131-01SB

更新时间： 2024-02-01 18:01:57
品牌 Logo 应用领域
CALMIRCO 稳压器模拟IC信号电路光电二极管双倍数据速率
页数 文件大小 规格书
10页 362K
描述
Triple Linear Voltage Regulator for DDR-I/-II Memory

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CM3131-01SB 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：HLSOP,
针数：8Reach Compliance Code：unknown
HTS代码：8542.39.00.01风险等级：5.84
Is Samacsys：N模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G8长度：4.915 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：HLSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：1.62 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：2.8 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：COMMERCIAL端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

CM3131-01SB 数据手册

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CM3131  
Triple Linear Voltage Regulator for DDR-I/-II Memory  
Product Description  
Features  
The CM3131 family of all-linear regulators provides  
an integrated power solution for DDR-I/-II memory  
systems in both run-time and standby modes of  
operation. The CM3131 is ideal for designs  
incorporating both a main 3.3V and a standby (3.3V  
or 5V) supply. The CM3131 features three  
independent linear regulators for VDDQ, VTT and VSTBY  
supply regulation and will maintain an accuracy of  
1% across the operating temperature range.  
•
•
•
•
•
Integrated power solution for DDR-I and DDR-II  
memory systems with few external components  
Three all-linear regulators for VDDQ, VTT and  
VSTBY power supply applications  
Lowest system cost and smallest footprint for  
DDR power solutions  
VDDQ regulator/driver utilizes external N-FET to  
provide up to 15A current at 2.5V/1.8V  
VTT source/sink regulator provides up to 2A at  
1.25V for DDR-I systems or 0.65A at 0.9V for  
the DDR-II memory controller (not DDR-II  
memory)  
LDO standby regulator provides up to 500mA at  
2.5V for DDR-I and at 1.8V for DDR-II systems  
Can be ganged for higher current applications  
Over temperature and reverse current protection  
Over current protection for VSTBY and VTT  
regulator  
The CM3131 is offered in two configurations. The  
CM3131-01/11 drives a single external N-FET on a  
single VDDQ rail. The CM3131-02 drives two external  
unmatched N-FETs on two VDDQ rails. Each VDDQ rail  
incorporates an adjustment pin (SENSE) to enable  
setting VDDQ in the 2.2V to 2.8V range, supporting  
DIMMs with different supply requirements or DDR-II  
type devices.  
•
•
•
•
The CM3131-01/11 is available in 8-lead PSOP  
package and the CM3131-02 is available in 14-lead  
PSOP package.  
•
•
Available in 8 lead and 14 lead PSOP packages  
Lead-free versions available  
The CM3131 devices are also available with optional  
lead-free finishing.  
Applications  
•
•
•
Desktop PCs, notebooks, and workstations  
Set top boxes, digital TVs, printers  
Embedded systems  
Electrical Schematic  
© 2004 California Micro Devices Corp. All rights reserved.  
02/02/04  
430 N. McCarthy Blvd., Milpitas, CA 95035-5112  
Tel: 408.263.3214  
Fax: 408.263.7846  
www.calmicro.com  
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