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LTC2923IDE PDF预览

LTC2923IDE

更新时间： 2024-09-25 05:43:51
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
20页 275K
描述
Power Supply Tracking Controller

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中文翻译

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LTC2923IDE 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSSON, SOLCC12,.12,20
针数：12Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-N12
JESD-609代码：e0长度：4 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：12
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVSSON
封装等效代码：SOLCC12,.12,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：235
电源：3/5 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Power Management Circuits
最大供电电流 (Isup)：10 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.9 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：20宽度：3 mm
Base Number Matches：1

LTC2923IDE 数据手册

 浏览型号LTC2923IDE的Datasheet PDF文件第2页浏览型号LTC2923IDE的Datasheet PDF文件第3页浏览型号LTC2923IDE的Datasheet PDF文件第4页浏览型号LTC2923IDE的Datasheet PDF文件第5页浏览型号LTC2923IDE的Datasheet PDF文件第6页浏览型号LTC2923IDE的Datasheet PDF文件第7页 
LTC2923  
Power Supply  
Tracking Controller  
U
FEATURES  
DESCRIPTIO  
■
Flexible Power Supply Tracking  
The LTC®2923 provides a simple solution to power supply  
tracking and sequencing requirements. By selecting a few  
resistors, the supplies can be configured to ramp-up and  
ramp-down together or with voltage offsets, time delays  
or different ramp rates.  
■
Tracks Both Up and Down  
■
Power Supply Sequencing  
Supply Stability is Not Affected  
Controls Two Supplies Without Series FETs  
Controls a Third Supply With a Series FET  
Adjustable Ramp Rates  
Electronic Circuit Breaker  
Available in 10-Lead MS and 12-Lead  
■
■
■
By introducing currents into the feedback nodes of two  
independent switching regulators, the LTC2923 causes  
their outputs to track without inserting any pass element  
losses. Because the currents are controlled in an open-  
loop manner, the LTC2923 does not affect the transient  
response or stability of the supplies. Furthermore, it  
presents a high impedance when power-up is complete,  
effectively removing it from the DC/DC circuit.  
■
■
■
(4mm × 3mm) DUFN Packages  
APPLICATIO S  
■
VCORE and VI/O Supply Tracking  
■
Microprocessor, DSP and FPGA Supplies  
For systems that require a third supply, one supply can be  
controlled with a series FET. This optional series FET can  
also control a supply that does not allow direct access to  
its feedback resistors (e.g., a power module) or a supply  
whose output cannot be forced to ground (e.g., a 3-termi-  
nal linear regulator). When the FET is used, an electronic  
circuit breaker provides protection from short-circuit  
conditions.  
■
Servers  
Communication Systems  
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Patents Pending.  
U
TYPICAL APPLICATIO  
Q1  
V
IN  
3.3V  
3.3V  
2.5V  
1.8V  
3.3V  
1V/DIV  
10nF  
V
IN  
IN  
DC/DC  
FB = 1.235V OUT  
138k  
V
CC  
ON  
GATE  
RAMP  
FB1  
1ms/DIV  
2923 TA02  
1.8V  
100k  
LTC2923  
16.5k  
35.7k  
STATUS  
SDO  
RAMPBUF  
TRACK1  
TRACK2  
V
IN  
16.5k  
13k  
3.3V  
2.5V  
1.8V  
IN  
DC/DC  
FB = 0.8V  
1V/DIV  
887k  
412k  
FB2  
OUT  
2.5V  
GND  
887k  
412k  
1ms/DIV  
2923 F08b  
2923 TA01  
2923fa  
1
1234567...20

中文翻译

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