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LT3120 PDF预览

LT3120

更新时间: 2024-11-23 14:58:27
品牌 Logo 应用领域
亚德诺 - ADI 升压转换器
页数 文件大小 规格书
36页 2727K
描述
26V、9A、低IQ CC/CV单芯片降压-升压转换器

LT3120 数据手册

 浏览型号LT3120的Datasheet PDF文件第2页浏览型号LT3120的Datasheet PDF文件第3页浏览型号LT3120的Datasheet PDF文件第4页浏览型号LT3120的Datasheet PDF文件第5页浏览型号LT3120的Datasheet PDF文件第6页浏览型号LT3120的Datasheet PDF文件第7页 
LT3120  
26V, 9A Low-I CC/CV  
Q
Monolithic Buck-Boost Converter  
FEATURES  
DESCRIPTION  
The LT®3120 is a high efficiency 26V monolithic buck-  
boost converter. Extensive feature integration and very  
low resistance internal power switches minimize the total  
solution footprint for even the most demanding applica-  
tions. A proprietary 4-switch PWM architecture provides  
seamless low noise operation from input voltages above,  
equal to, or below the output voltage.  
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Input Voltage Range: 2.5V to 26V  
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0.8V to 24V Output Voltage Range  
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High Output Current  
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6.5A with V  
= 5V, V > 6V  
OUT  
IN  
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3A with V  
= 5V, V = 3V  
OUT  
OUT  
IN  
6.5A with V  
= 12V, V > 14V  
IN  
4 A with V  
= 12V, V = 9V  
OUT  
IN  
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Ultralow Noise Buck-Boost Architecture  
Programmable Output Current Limit  
External frequency programming as well as synchroniza-  
tion using an internal PLL enable operation over a wide  
switching frequency range of 400kHz to 2MHz. The wide  
2.5V to 26V input range is well suited for operation from  
unregulated power sources including battery stacks and  
backup capacitors. After start-up, operation is possible  
with input voltages as low as 500mV.  
Programmable Frequency Range: 400kHz to 2MHz  
Accurate Enable Comparator Threshold  
Burst Mode® Operation, No-Load I = 35µA  
Q
Current Mode Control  
External Clock Synchronization  
Maximum Power Point Control  
28-Lead 4mm × 5mm LQFN Package  
Other features include, output short-circuit protection,  
thermal overload protection, less than 3µA shutdown cur-  
rent, power good indicator, Burst Mode operation, and  
maximum power point control.  
APPLICATIONS  
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RF Power Supply  
The LT3120 is offered in thermally enhanced 28-lead  
4mm × 5mm LQFN package.  
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USB Power Delivery  
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System Backup Power Supply  
1-Cell to 5-Cell Lithium Battery Powered Products  
Wide Input Range Power Supply  
Lead Acid to 12V Regulator  
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All registered trademarks and trademarks are the property of their respective owners.  
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TYPICAL APPLICATION  
Wide Input Range 750kHz 5V Regulator  
Efficiency, VOUT = 5V, fSW = 750kHz  
ꢀ.ꢀꢁꢂ  
ꢀ00  
ꢀꢁꢂꢃꢄ ꢅꢆꢇe ꢈꢉꢊRꢋꢌꢍꢈꢎ  
0.ꢀꢀꢁꢂ  
0.ꢀꢀꢁꢂ  
ꢀꢁꢂ  
ꢀꢁꢂꢃ  
ꢀꢁꢂ  
ꢀꢁꢂꢃ  
ꢀꢁꢂ  
ꢀꢁꢂ  
ꢀꢁꢂꢃ  
ꢀ0  
ꢀ0  
ꢀ0  
ꢀ0  
ꢁꢂ  
ꢀꢁ  
ꢂꢃ  
ꢀ.ꢁꢂ ꢃꢄ ꢀꢅꢂ  
ꢂꢃꢄ0  
ꢁꢂ  
ꢀ0ꢁꢂ  
ꢀꢀꢁꢂ  
ꢀꢁꢂꢃꢄꢅꢆ  
ꢁꢂꢃ  
ꢀꢁ  
ꢀꢁꢂꢃ  
ꢀꢁ  
ꢂꢃꢄ  
ꢀ0  
ꢀꢁꢂꢃꢄꢅꢆꢇꢈ  
ꢀꢁꢂ  
ꢀꢁ0ꢂꢃ  
ꢀ0  
ꢀꢁꢁꢂ  
ꢀꢁ  
ꢀꢁꢂꢂꢃ  
ꢀꢁ  
ꢁꢁ  
ꢀ0  
ꢀRꢁꢂ  
Rꢀ  
ꢀ ꢁꢂ  
ꢀ ꢁꢂꢃ  
ꢀ ꢁ0ꢂ  
ꢀꢁ  
ꢀꢁ  
ꢀꢁ  
ꢀ0  
ꢀ0ꢁꢂ  
ꢀ.ꢁꢂꢃ  
ꢀ0ꢁꢂ  
ꢀꢁꢂ  
ꢀꢁ.ꢂꢃ  
ꢀ0  
ꢀ00ꢁ  
ꢀꢁ  
ꢀ0ꢁ  
ꢀ00ꢁ  
ꢀ0  
ꢀꢁ0ꢂꢃ  
ꢀꢁꢂꢃꢁꢂ ꢄꢁRRꢅꢆꢂ ꢇꢈꢉ  
ꢀꢁꢂ0 ꢃꢄ0ꢁꢅ  
ꢀꢁꢂ0 ꢃꢄ0ꢁ  
ꢃ ꢄ.ꢅꢀꢆ ꢁ  
ꢃꢊ.ꢄꢅꢋꢆ ꢌꢍꢍꢁꢎꢁꢌꢂꢎꢏ ꢃ ꢐꢅꢑ  
ꢃ ꢄ.ꢉꢊꢅ ꢋꢌꢌꢁꢍꢁꢋꢂꢍꢎ ꢃ ꢏꢄꢐ  
ꢁꢂ  
ꢁꢂ  
ꢇꢈꢉ  
ꢃ ꢄ.0ꢀꢅ ꢁ  
ꢆꢇꢈ  
Rev. 0  
1
Document Feedback  
For more information www.analog.com  

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