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LFC789D25CPWR PDF预览

LFC789D25CPWR

更新时间： 2024-11-07 22:31:23
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
11页 217K
描述
DUAL LINEAR FET CONTROLLER

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中文翻译

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LFC789D25CPWR 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：TSSOP,针数：8
Reach Compliance Code：unknownHTS代码：8542.39.00.01
Factory Lead Time：1 week风险等级：5.54
模拟集成电路 - 其他类型：ANALOG CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e4长度：4.4 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：TSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.2 mm
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：9 V
标称供电电压 (Vsup)：12 V表面贴装：YES
温度等级：COMMERCIAL端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：GULL WING端子节距：0.65 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 mmBase Number Matches：1

LFC789D25CPWR 数据手册

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SLLS565B − MARCH 2003 − REVISED SEPTEMBER 2004  
D OR PW PACKAGE  
(TOP VIEW)  
D
D
Two Independent Controllers for  
Regulation of:  
− Fixed 2.5-V and an Adjustable Output  
8
7
6
5
DRV_V  
SEN_V  
V
V
CC  
1
2
3
4
ADJ  
ADJ  
−
2% (Max) Regulation Across  
DRV_V  
SEN_V  
NC  
25  
25  
Temperature and Load (1 mA to 3 A)  
REF  
GND  
Adjustable Output Can Be Set Via an  
External Reference Pin, Allowing for the  
Creation of a Tracking Regulator  
NC − No internal connection  
D
D
Great Design Flexibility With Minimal  
External Components  
Applications: High-Current, Low-Dropout  
Regulators for:  
− DDR/RDRAM Memory Termination  
− Motherboards  
− Chipset I/O  
− GTLP Termination  
description/ordering information  
The LFC789D25 is a dual linear FET controller that simplifies the design of dual power supplies. The device  
consists of two independent controllers, each of which drives an external MOSFET to implement a low-dropout  
regulator. One controller is programmed to regulate a fixed 2.5-V output, while the second controller can be  
programmed to regulate any desired output voltage via a reference input pin, allowing for the creation of a  
tracking regulator often needed for termination schemes. And, because heating effects of the external FETs  
easily can be isolated from the controllers, the controllers can regulate the output voltages to a maximum  
tolerance of 2% across temperature and load.  
The LFC789D25 allows designers a great deal of flexibility in selecting external components and topology to  
implement their specific power-supply needs. With appropriate heat sinking, the designer can build a regulator  
with as much current capability as allowed by the external MOSFET and power supply. And, because the  
dropout of the regulator simply is the product of the R  
very low dropout can be achieved via proper selection of the power MOSFET.  
of the external power MOSFET and the load current,  
DS(on)  
Packaged in 8-pin SOIC and space-saving TSSOP, the LFC789D25 is characterized for operation from 0°C to  
70°C.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
Tube of 75  
Reel of 2500 LFC789D25CDR  
Tube of 150 LFC789D25CPW  
Reel of 2000 LFC789D25CPWR  
LFC789D25CD  
SOIC (D)  
KADAC  
0°C to 70°C  
TSSOP (PW)  
KADAC  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines  
are available at www.ti.com/sc/package.  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2004, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...11

中文翻译

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LFC789D25CPWR 替代型号

型号 品牌 替代类型 描述 数据表
LFC789D25CPWRG4 TI

完全替代

 SPECIALTY ANALOG CIRCUIT, PDSO8, GREEN, PLASTIC, TSSOP-8
LFC789D25CPWG4 TI

完全替代

 SPECIALTY ANALOG CIRCUIT, PDSO8, GREEN, PLASTIC, TSSOP-8
LFC789D25CPW TI

类似代替

 DUAL LINEAR FET CONTROLLER

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