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LT3383

更新时间： 2024-11-24 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 开关稳压器
页数 文件大小 规格书
18页 1102K
描述
集成4个降压开关和3个LDO线性稳压器的多输出电源管理解决方案

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中文翻译

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LT3383 数据手册

 浏览型号LT3383的Datasheet PDF文件第2页浏览型号LT3383的Datasheet PDF文件第3页浏览型号LT3383的Datasheet PDF文件第4页浏览型号LT3383的Datasheet PDF文件第5页浏览型号LT3383的Datasheet PDF文件第6页浏览型号LT3383的Datasheet PDF文件第7页 
LT3383  
Multioutput Power Management Solution  
with Four Buck Switching and Three LDO Linear Regulators  
FEATURES  
DESCRIPTION  
The LT®3383 is a complete power management solution  
for advanced portable application processor-based sys-  
tems. The device contains four synchronous step-down  
DC/DC converters for core, memory, I/O, and system on-  
chip (SoC) rails and three 300mA LDO regulators for low  
noise analog supplies.  
n
Quad Adjustable High Efficiency Step-Down  
DC/DC Converters: 2.5A, 2.5A, 1.5A, 1.5A  
Three 300mA LDO Regulators (Two Adjustable)  
Independent Enable Pin-Strap Sequencing  
Power Good  
n
n
n
n
n
n
n
n
2.25MHz Switching Frequency  
12µA Standby Current  
Regulator start-up is sequenced by connecting outputs to  
enable pins in the desired order. A master power-on pin  
is provided to initiate pin-strapped power-on sequences.  
150°C T Operation (LT3383H)  
J
Side Wettable 40-Lead 6mm × 6mm QFN Package  
AEC-Q100 Qualified for Automotive Applications  
A status pin is available to indicate regulator undervoltages.  
If an overtemperature or low supply fault is detected all  
regulators are disabled during the fault condition.  
APPLICATIONS  
n
Automotive  
The device is available in a 40-lead 6mm × 6mm QFN with  
wettable flanks for optical inspection.  
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Industrial  
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Communications  
General Purpose Multichannel Power Supplies  
n
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
1µH  
Start-Up Sequence  
2.5A  
SW1  
2.7V TO 5.5V  
1.7V TO V  
V
V
IN  
IN  
IN_L1  
PWR_ON  
FB_B1  
47µF  
300mA  
LDO1  
5V/DIV  
1V/DIV  
LDO1  
LDO2  
LT3383  
1µF  
FB_L1  
1µH  
1µH  
1µH  
2.5A  
SW2  
BUCK1 AND BUCK2  
BUCK3  
FB_B2  
BUCK4  
47µF  
1.7V TO V  
V
IN_L2  
1V/DIV  
IN  
300mA  
LDO2  
3383 TA01b  
1ms/DIV  
1.5A  
SW3  
1µF  
FB_L2  
FB_B3  
47µF  
1.8V TO V  
V
IN_L3  
IN  
1.8V  
300mA  
LDO3  
1.5A  
SW4  
1µF  
FB_B4  
47µF  
7
ENABLES  
PWR_ON  
PGOOD  
3383 TA01a  
Rev. B  
1
Document Feedback  
For more information www.analog.com  
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