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LTM4620A PDF预览

LTM4620A

更新时间： 2024-01-09 14:11:00
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
36页 554K
描述
Dual 13A or Single 26A DC/DC μModule Regulator Frequency Synchronization

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中文翻译

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LTM4620A 数据手册

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LTM4620A  
Dual 13A or Single 26A  
DC/DC µModule Regulator  
FeaTures  
DescripTion  
n
Dual 13A or Single 26A Output  
TheLTM®4620Aisacompletedual13A,orsingle26Aoutput  
n
Wide Input Voltage Range: 4.5V to 16V  
switchingmodeDC/DCpowersupplywithwiderV range  
OUT  
n
Output Voltage Range: 0.6V to 5.3V  
and higher efficiency than the LTM4620. Included in the  
packagearetheswitchingcontroller,powerFETs,inductors  
and all supporting components. Operating from an input  
voltage range of 4.5V to 16V, the LTM4620A supports two  
outputs each with an output voltage range of 0.6V to 5.3V,  
set by a single external resistor. Its high efficiency design  
deliversupto13Acontinuouscurrentforeachoutput.Only  
a few input and output capacitors are needed.  
n
1.5ꢀ Maꢁiꢂuꢂ ꢃotal DC Output Error  
n
Multiphase Current Sharing with Multiple  
LꢃM4620As Up to 100A  
n
Higher Efficiency and Wider V  
Range Than LTM4620  
OUT  
n
n
n
n
n
n
n
n
Differential Remote Sense Amplifier  
Current Mode Control/Fast Transient Response  
Adjustable Switching Frequency  
Overcurrent Foldback Protection  
Thedevicesupportsfrequencysynchronization,multiphase  
operation, Burst Mode® operation and output voltage  
tracking for supply rail sequencing and has an onboard  
temperaturediodefordevicetemperaturemonitoring.High  
switchingfrequencyandacurrentmodearchitectureenable  
a very fast transient response to line and load changes  
without sacrificing stability.  
Frequency Synchronization  
Internal Temperature Sensing Diode Output  
Output Overvoltage Protection  
Pin Compatible with the LTM4628 (Dual 8A) and  
LTM4620 (Dual 13A)  
15mm × 15mm × 4.41mm LGA Package  
n
Fault protection features include overvoltage and over-  
current protection. The power module is offered in a  
proprietary space saving and thermally enhanced 15mm  
× 15mm × 4.41mm LGA package. The LTM4620A is  
RoHS compliant.  
applicaTions  
n
Telecom and Networking Equipment  
n
Industrial Equipment  
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode and PolyPhase are  
registered trademarks of Linear Technology Corporation. All other trademarks are the property  
of their respective owners.  
Typical applicaTion  
26A, 5V Output DC/DC µModule® Regulator  
INTV  
INTV  
CC  
CC  
5V Efficiency vs IOUꢃ  
4.7µF  
5k  
100  
V
OUT  
PGOOD  
MODE_PLLIN CLKOUT INTV  
EXTV  
PGOOD1  
CC  
CC  
V
95  
IN  
7V TO 16V  
V
IN  
V
OUT1  
100µF  
6.3V  
×2  
22µF  
25V  
×4  
TEMP  
V
10k*  
120k  
INTV  
OUTS1  
RUN1  
DIFFOUT  
90  
220pF  
RUN2  
SW1  
TRACK1  
TRACK2  
V
V
FB1  
FB2  
LTM4620A  
5.1V*  
8.25k  
85  
80  
f
0.1µF  
COMP1  
COMP2  
CC  
SET  
8V TO 5V EFF (650kHz)  
12V TO 5V EFF (750kHz)  
PHASMD  
V
OUTS2  
V
OUT  
1
3
5
8
10 12 14 16 19 21 23  
* PULL-UP RESISTOR AND  
ZENER ARE OPTIONAL  
V
5V  
OUT2  
SW2  
100µF  
6.3V  
×2  
TOTAL OUTPUT CURRENT (A)  
26A  
4620A TA01b  
PGOOD2  
SGND  
GND  
DIFFP  
DIFFN  
PGOOD  
4620A TA01a  
4620af  
1
For more information www.linear.com/4620A  
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中文翻译

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