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LTM4601AHV PDF预览

LTM4601AHV

更新时间： 2024-11-30 14:58:15
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 1001K
描述
具 PLL、输出跟踪和裕度调节功能的 12A、28VIN DC/DC μModule 稳压器

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LTM4601AHV 数据手册

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LTM4601AHV  
12A, 28V DC/DC µModule  
IN  
Regulator with PLL, Output  
Tracking and Margining  
DescripTion  
FeaTures  
n
Complete Switch Mode Power Supply  
The LTM®4601AHV is a complete 12A step-down switch  
mode DC/DC power supply with onboard switching con-  
troller, MOSFETs, inductor and all support components.  
The µModule regulator is housed in a small surface mount  
15mm × 15mm × 2.82mm LGA or 15mm × 15mm ×  
3.42mm BGA package. The LTM4601AHV LGA and BGA  
packages are designed with redundant mounting pads to  
enhance solder-joint strength for extended temperature  
cycling endurance. Operating over an input voltage range  
of 4.5V to 28V, the LTM4601AHV supports an output volt-  
age range of 0.6V to 5V as well as output voltage tracking  
and margining. The high efficiency design delivers 12A  
continuouscurrent(14Apeak). Onlybulkinputandoutput  
capacitors are needed to complete the design.  
n
Wide Input Voltage Range: 4.5V to 28V  
n
12A DC Typical, 14A Peak Output Current  
n
0.6V to 5V Output Voltage  
n
Output Voltage Tracking and Margining  
n
Redundant Mounting Pads for Enhanced  
Solder-Joint Strength  
Parallel Multiple µModule® Regulators for  
n
Current Sharing  
Differential Remote Sensing for Precision Regulation  
n
n
PLL Frequency Synchronization  
1.5% Total DC Error  
n
n
Current Foldback Protection (Disabled at Start-Up)  
n
SnPb or RoHS Compliant Finish  
n
–55°C to 125°C Operating Temperature Range  
The low profile and light weight package easily mounts  
in unused space on the back side of PC boards for high  
density point of load regulation. The µModule regulator  
can be synchronized with an external clock for reducing  
undesirable frequency harmonics and allows PolyPhase®  
operation for high load currents.  
(LTM4601AHVMPV)  
n
Ultrafast™ Transient Response  
n
Up to 95% Efficiency at 5V , 3.3V  
IN  
OUT  
n
n
n
Programmable Soft-Start  
Output Overvoltage Protection  
Enhanced (15mm × 15mm × 2.82mm) Surface Mount  
LGA and (15mm × 15mm × 3.42mm) BGA Packages  
Anonboarddifferentialremotesenseamplifiercanbeused  
to accurately regulate an output voltage independent of  
load current. The LTM4601AHV is available with SnPb or  
RoHS compliant terminal finish.  
L, LT, LTC and LTM, Linear Technology, the Linear logo, µModule and PolyPhase are  
registered trademarks and Ultrafast and LTpowerCAD are trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners. Protected by U.S.  
Patents including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611, 6677210.  
applicaTions  
n
Telecom, Industrial and Networking Equipment  
Military and Avionics Systems  
n
Typical applicaTion  
Efficiency and Power Loss  
vs Load Current  
2.5V/12A Power Supply with 4.5V to 28V Input  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
6
5
4
3
2
1
0
12V  
IN  
EFFICIENCY  
CLOCK SYNC  
TRACK/SS CONTROL  
V
IN  
4.5V TO 28V  
24V  
IN  
V
PLLIN TRACK/SS  
V
2.5V  
12A  
IN  
OUT  
PGOOD  
V
OUT  
100pF  
POWER LOSS  
24V  
V
FB  
ON/OFF  
RUN  
COMP  
INTV  
MARG0  
MARG1  
V
OUT_LCL  
MARGIN  
CONTROL  
IN  
C
OUT  
LTM4601AHV  
C
IN  
12V  
IN  
CC  
DRV  
DIFFV  
CC  
OUT  
+
MPGM  
SGND PGND  
V
V
OSNS  
–
OSNS  
R1  
392k  
f
SET  
R
SET  
19.1k  
0
4
6
8
10  
12  
14  
2
5% MARGIN  
LOAD CURRENT (A)  
4601AHV TA01a  
4601AHV TA01b  
4601ahvfc  
1
For more information www.linear.com/LTM4601AHV  
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