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LTM4601HV_12

更新时间： 2024-11-30 11:45:11
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
30页 507K
描述
12A 28VIN DC/DC μModule Regulator

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中文翻译

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LTM4601HV_12 数据手册

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LTM4601HV  
12A 28V DC/DC µModule  
IN  
Regulator with PLL, Output  
Tracking and Margining  
FEATURES  
DESCRIPTION  
n
Complete Switch Mode Power Supply  
The LTM®4601HV is a complete 12A step-down switch  
modeDC/DCpowersupplywithonboardswitchingcontrol-  
ler, MOSFETs, inductor and all support components. The  
µModuleregulatorishousedinsmallsurfacemount15mm  
× 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm  
BGA packages. Operating over an input voltage range of  
4.5V to 28V, the LTM4601HV supports an output voltage  
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  
Parallel Multiple µModule® Regulators for Current  
n
Sharing  
n
Differential Remote Sensing for Precision Regulation range of 0.6V to 5V as well as output voltage tracking  
n
n
n
n
PLL Frequency Synchronization  
1.5ꢀ Regulation  
and margining. The high efficiency design delivers 12A  
continuouscurrent(14Apeak). Onlybulkinputandoutput  
capacitors are needed to complete the design.  
Current Foldback Protection (Disabled at Start-Up)  
RoHS Compliant with Pb-Free Finish,  
Gold Finish LGA (e4) or SAC 305 BGA (e1)  
Ultrafast Transient Response  
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.  
n
n
n
n
n
n
Current Mode Control  
Up to 95% Efficiency at 5V , 3.3V  
IN  
OUT  
Programmable Soft-Start  
Output Overvoltage Protection  
Small Footprint, Low Profile  
A high switching frequency and adaptive on-time current  
mode architecture deliver a very fast transient response  
to line and load changes without sacrificing stability. An  
onboard differential remote sense amplifier can be used  
to accurately regulate an output voltage independent of  
load current.  
(15mm × 15mm × 2.82mm) Surface Mount LGA and  
(15mm × 15mm × 3.42mm) BGA Packages  
APPLICATIONS  
n
Telecom and Networking Equipment  
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and PolyPhase are registered  
trademarks and LTpowerCAD is a trademark 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.  
n
Servers  
n
Industrial Equipment  
Point of Load Regulation  
n
TYPICAL APPLICATION  
2.5V/12A Power Supply with 4.5V to 28V Input  
CLOCK SYNC  
Efficiency and Power Loss  
vs Load Current  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
45  
6
5
4
3
2
1
0
12V  
IN  
V
IN  
4.5V TO 28V  
TRACK/SS CONTROL  
V
PLLIN TRACK/SS  
V
2.5V  
12A  
IN  
OUT  
24V  
IN  
PGOOD  
V
OUT  
100pF  
EFFICIENCY  
V
FB  
ON/OFF  
RUN  
COMP  
MARG0  
MARG1  
V
OUT_LCL  
MARGIN  
CONTROL  
24V  
C
OUT  
IN  
LTM4601HV  
C
IN  
INTV  
DRV  
CC  
12V  
IN  
DIFFV  
CC  
OUT  
+
POWER LOSS  
MPGM  
V
V
OSNS  
–
OSNS  
R1  
392k  
f
SGND PGND  
SET  
R
SET  
19.1k  
5% MARGIN  
0
4
6
8
10  
12  
14  
2
4601HV TA01a  
LOAD CURRENT (A)  
4601HV TA01b  
4601hvfb  
1
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