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LT8607DFN

更新时间： 2022-05-14 22:18:58
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
24页 2950K
描述
42V, 750mA Synchronous Step-Down Regulator with 2.5μA Quiescent Current

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LT8607DFN 数据手册

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LT8607/LT8607B  
42V, 750mA Synchronous  
Step-Down Regulator with  
2.5µA Quiescent Current  
FEATURES  
DESCRIPTION  
The LT®8607 is a compact, high efficiency, high speed syn-  
chronous monolithic step-down switching regulator that  
consumes only 1.7µA of non-switching quiescent current.  
The LT8607 can deliver 750mA of continuous current.  
Burst Mode operation enables high efficiency down to very  
low output currents while keeping the output ripple below  
n
Wide Input Voltage Range: 3.0V to 42V  
Ultralow Quiescent Current Burst Mode® Operation  
n
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<3µA I Regulating 12V to 3.3V  
Q
IN  
P-P  
OUT  
n
Output Ripple <10mV  
n
High Efficiency 2MHz Synchronous Operation  
n
>93% Efficiency at 0.5A, 12V to 5V  
IN  
OUT  
n
n
n
n
n
n
n
n
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10mV . Internal compensation with peak current mode  
750mA Maximum Continuous Output  
Fast Minimum Switch-On Time: 35ns  
LT8607 Available in Fixed 5V Output  
Adjustable and Synchronizable: 200kHz to 2.2MHz  
Spread Spectrum Frequency Modulation for Low EMI  
Allows Use of Small Inductors  
Low Dropout  
Peak Current Mode Operation  
Accurate 1V Enable Pin Threshold  
Internal Compensation  
Output Soft-Start and Tracking  
P-P  
topology allows the use of small inductors and results in  
fast transient response and good loop stability. The EN/UV  
pin has an accurate 1V threshold and can be used to pro-  
gram V undervoltage lockout or to shut down the LT8607  
IN  
reducing the input supply current to 1µA.  
The MSOP package includes a SYNC pin to synchronize  
to an external clock, or to select Burst Mode operation  
or pulse-skipping with or without spread spectrum; the  
TR/SS pin programs soft-start or tracking. The DFN  
package omits these pins and can be purchased in pulse-  
skipping or Burst Mode operation.  
Small Thermally Enhanced 10-Lead MSOP Package  
or 8-Lead 2mm × 2mm DFN Package  
AEC-Q100 Qualified for Automotive Applications  
PART NUMBER PACKAGE OUTPUT VOLTAGE SYNC FUNCTIONALITY  
n
LT8607MSE  
MSE  
Programmable  
Fixed 5V Out  
Programmable  
LT8607-5MSE MSE  
Programmable  
APPLICATIONS  
General Purpose Step-Down Converter  
Low EMI Step Down  
LT8607DFN  
DFN  
DFN  
Programmable  
Programmable  
Burst Mode Operation  
Pulse-Skipping Mode  
LT8607BDFN  
All registered trademarks and trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
12VIN to 5VOUT Efficiency  
ꢀꢁꢁ  
ꢀꢁ  
5V, 2MHz Step-Down  
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1MΩ  
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Rev. D  
1
Document Feedback  
For more information www.analog.com  
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