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CM3132-02SH PDF预览

CM3132-02SH

更新时间: 2024-01-23 11:18:53
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
11页 227K
描述
Triple Linear Voltage Regulator for DDR-I Memory and CPU

CM3132-02SH 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:LSOP,
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:85 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:LSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, 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):2.3 V
标称供电电压 (Vsup):3.3 V表面贴装:YES
温度等级:OTHER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

CM3132-02SH 数据手册

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PRELIMINARY  
CM3132  
Triple Linear Voltage Regulator for DDR-I Memory and CPU  
Features  
Product Description  
The CM3132 provides an integrated power solution for a  
CPU core and DDR-I memory for consumer and other  
embedded applications. It features three independent linear  
Fully integrated power solution for a CPU/SOC  
core and DDR-I memory ICs  
Lowest system cost and smallest footprint with just  
three external output capacitors  
Three linear regulators for V  
regulators for V  
, V  
and V supply regulation. The  
CORE  
DDQ TT  
(1.5A), V  
default voltage for V  
is 1.5V. The SENSE_CORE pin  
CORE  
DDQ  
CORE  
(1.5A), and V (0.5A, source-sink)  
can be tied to GND for the default voltage, or through a  
resistor divider for setting the CPU core in the range 1.2V to  
TT  
V
V
= 2.5V, V = V  
/2 25mV  
DDQ  
DDQ  
TT  
1.8V. V  
is internally set to 2.50V and the V voltage is  
DDQ  
TT  
is adjustable, with a default output of 1.5V  
CORE  
always half the V  
voltage. A capacitor should be con-  
DDQ  
Over-temperature and reverse current protection  
Overcurrent protection for all regulators  
PSOP-8 package with integrated heat spreader  
Lead-free version available  
nected to each of the three outputs.  
There are two enable pins, EN_CORE and EN_DDR. When  
EN_CORE is set high, the CORE regulator is disabled.  
When EN_DDR is set high, the two DDR regulators are dis-  
abled to minimize overall system power dissipation when  
memory is in standby mode. These two enable pins allow  
power sequencing of the DDR and CORE regulator blocks  
independently.  
Applications  
Core CPU and DDR-I memory power for:  
Set Top Boxes, DVD Players, Games  
Digital TVs, Flat Panel Displays  
Printers, Digital Projectors  
The CM3132 is available in a PSOP-8 package that has  
excellent thermal dissipation. It is available with optional  
lead-free finishing.  
Embedded systems  
Communications systems  
Typical Application Circuit  
Circuit Schematic  
V
CC  
2.8V to 3.3V  
V
DDQ  
REGULATOR  
V
REF  
VCC  
V
V
V
DDQ  
VDDQ  
REGULATOR  
C
VREF  
VCC  
V
DDQ = 2.5V  
EN_DDR  
C
DDQ  
EN_DDR  
Enable DDR  
Memory #  
V
DDR  
MEMORY  
TT  
R
REGULATOR  
VTT  
REGULATOR  
VREF=1.25V  
TT=1.25V  
R
TT  
R
V
R
C
TT  
V
CORE  
REGULATOR  
VCORE  
REGULATOR  
V
REF  
VREF  
CORE  
CPU  
CORE  
+ I/O  
VCORE  
R3  
R4  
C
EN_CORE  
CORE  
EN_CORE  
Enable CORE#  
SENSE_CORE  
SENSE_CORE  
GND  
GND  
© 2004 California Micro Devices Corp. All rights reserved.  
10/13/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112  
Tel: 408.263.3214  
Fax: 408.263.7846  
www.calmicro.com  
1

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