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LT3071

更新时间： 2024-09-16 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 稳压器
页数 文件大小 规格书
30页 1256K
描述
具模拟裕度调节功能的 5A、低噪声、可编程输出、85mV 压差线性稳压器

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中文翻译

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LT3071 数据手册

 浏览型号LT3071的Datasheet PDF文件第2页浏览型号LT3071的Datasheet PDF文件第3页浏览型号LT3071的Datasheet PDF文件第4页浏览型号LT3071的Datasheet PDF文件第5页浏览型号LT3071的Datasheet PDF文件第6页浏览型号LT3071的Datasheet PDF文件第7页 
LT3071  
5A, Low Noise,  
Programmable Output, 85mV  
Dropout Linear Regulator  
with Analog Margining  
FEATURES  
DESCRIPTION  
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Output Current: 5A  
The LT®3071 is a low voltage, UltraFast™ transient re-  
sponse linear regulator. The device supplies up to 5A of  
output current with a typical dropout voltage of 85mV.  
A 0.01µF reference bypass capacitor decreases output  
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Dropout Voltage: 85mV Typical  
Digitally Programmable V : 0.8V to 1.8V  
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OUT  
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Analog Output Margining: 10ꢀ Range  
Low Output Noise: 25µV  
Parallel Multiple Devices for 10A or More  
Precision Current Limit: 20ꢀ  
(10Hz to 100kHz)  
RMS  
voltage noise to 25µV  
. The LT3071’s high bandwidth  
RMS  
permits the use of low ESR ceramic capacitors, saving  
bulk capacitance and cost. The LT3071’s features make  
it ideal for high performance FPGAs, microprocessors or  
sensitive communication supply applications.  
Output Current Monitor: I  
= I /2500  
OUT  
MON  
1ꢀ Accuracy Over Line, Load and Temperature  
Stable with Low ESR Ceramic Output Capacitors  
(15µF Minimum)  
High Frequency PSRR: 30dB at 1MHz  
Enable Function Turns Output On/Off  
VIOC Pin Controls Buck Converter to Maintain Low  
Power Dissipation and Optimize Efficiency  
PWRGD/UVLO/Thermal Shutdown Flag  
Current Limit with Foldback Protection  
Thermal Shutdown  
Output voltage is digitally selectable in 50mV increments  
over a 0.8V to 1.8V range. An analog margining function  
allows the user to adjust system output voltage over a  
continuous 10ꢀ range. The IC incorporates a unique  
tracking function to control a buck regulator powering  
the LT3071’s input. This tracking function drives the buck  
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regulator to maintain the LT3071’s input voltage to V  
+ 300mV, minimizing power dissipation.  
OUT  
28-Lead (4mm × 5mm × 0.75mm) QFN Package  
InternalprotectionincludesUVLO,reverse-currentprotec-  
tion, precision current limiting with power foldback and  
thermal shutdown. The LT3071 regulator is available in a  
thermally enhanced 28-lead, 4mm × 5mm QFN package.  
APPLICATIONS  
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FPGA and DSP Supplies  
ASIC and Microprocessor Supplies  
Servers and Storage Devices  
Post Buck Regulation and Supply Isolation  
All registered trademarks and trademarks are the property of their respective owners. Patents  
pending.  
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TYPICAL APPLICATION  
Dropout Voltage  
ꢐꢒꢊ  
0.9V, 5A Regulator  
ꢋ
ꢘ ꢋ  
ꢀꢁꢂꢇꢆꢀꢝꢛꢆꢈꢌꢉ  
ꢛꢆ  
ꢄꢅꢆ  
ꢎ
ꢀꢁꢂꢃ  
ꢒ.ꢒꢎ ꢈꢏ ꢉ.ꢟꢎ  
ꢖꢚRꢛD  
ꢐꢑꢊ  
ꢏꢊ  
ꢗꢊ  
ꢔꢊ  
ꢊ
ꢒ.ꢒꢐꢑ  
ꢀꢁꢂꢃ  
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ꢁꢌ  
ꢁꢌ  
ꢍꢌ  
ꢎ
ꢖꢚRꢛD  
ꢃꢍꢌꢃꢍ  
ꢋ.ꢒꢎ  
ꢋ
ꢚꢛꢈꢜ  
ꢘ ꢐ.ꢙꢋ  
ꢘ ꢔ.ꢔꢋ  
ꢉꢉꢅꢐꢑ  
ꢀꢁꢂ  
ꢎ
ꢅ.ꢝꢎ  
ꢄꢂ  
ꢏꢜꢈ  
ꢋ
ꢇꢈꢉꢅꢊꢋ  
ꢏꢜꢈ  
ꢏꢅ  
ꢒ.ꢒꢐꢑꢓ  
ꢘ.ꢊꢐꢑꢓ  
ꢋꢅꢐꢑꢓ  
ꢎ
ꢏꢋ  
ꢎ
ꢏꢒ  
ꢋ
ꢋ
ꢘ ꢊ.ꢙꢋ  
ꢘ ꢑ.ꢒꢋ  
ꢀꢁꢂ  
ꢚꢛꢈꢜ  
ꢓꢔꢄR ꢏR ꢔꢊR ꢕꢂꢖꢂꢕꢁꢈꢏRꢃ  
ꢎ
ꢞꢏꢌ  
ꢌꢕ  
ꢒꢎ ꢂꢈ ꢄꢂ  
ꢞꢂRꢛꢂ  
ꢎꢁꢏꢕ  
ꢁ
ꢞꢏꢌ  
ꢑꢜꢇꢇ ꢃꢕꢂꢇꢍ  
Rꢍꢑꢠꢀꢡꢖ  
ꢛꢌD  
ꢋꢆ  
ꢊ
ꢐ
ꢑ
ꢔ
ꢓ
ꢒ
ꢋꢗꢑ  
ꢅ.ꢅꢋꢐꢑ  
ꢀꢁꢂꢃꢁꢂ ꢄꢁRRꢅꢆꢂ ꢇꢈꢉ  
ꢔꢊꢕꢐ ꢂꢈꢊꢐꢖ  
ꢉꢅꢊꢋ ꢈꢂꢅꢋꢙ  
Rev. D  
1
Document Feedback  
For more information www.analog.com  
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