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LTM4601-1_15 PDF预览

LTM4601-1_15

更新时间： 2024-11-30 01:22:39
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
30页 946K
描述
12A Module Regulators with PLL, Output Tracking and Margining

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LTM4601-1_15 数据手册

 浏览型号LTM4601-1_15的Datasheet PDF文件第2页浏览型号LTM4601-1_15的Datasheet PDF文件第3页浏览型号LTM4601-1_15的Datasheet PDF文件第4页浏览型号LTM4601-1_15的Datasheet PDF文件第5页浏览型号LTM4601-1_15的Datasheet PDF文件第6页浏览型号LTM4601-1_15的Datasheet PDF文件第7页 
LTM4601/LTM4601-1  
12A µModule Regulators  
with PLL, Output Tracking  
and Margining  
FeaTures  
DescripTion  
n
Complete Switch Mode Power Supply  
The LTM®4601 is a complete 12A step-down switch mode  
DC/DC power supply with onboard switching controller,  
MOSFETs, inductor and all support components. The  
µModule® regulator is housed in small surface mount  
15mm × 15mm × 2.82mm LGA and 15mm × 15mm ×  
3.42mm BGA packages. Operating over an input voltage  
range of 4.5V to 20V, the LTM4601 supports an output  
voltage range of 0.6V to 5V as well as output voltage  
tracking and margining. The high efficiency design deliv-  
ers 12A continuous current (14A peak). Only bulk input  
and output capacitors are needed to complete the design.  
n
Wide Input Voltage Range: 4.5V to 20V  
n
12A DC Typical, 14A Peak Output Current  
n
0.6V to 5V Output Voltage  
n
Output Voltage Tracking and Margining  
n
Parallel Multiple µModule Regulators for Current  
Sharing  
n
Differential Remote Sensing for Precision  
Regulation (LTM4601 Only)  
n
PLL Frequency Synchronization  
n
1.5ꢀ Regulation  
n
Current Foldback Protection (Disabled at Start-Up)  
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
SnPb or RoHS Compliant Finish  
n
UltraFast™ Transient Response  
n
Current Mode Control  
n
Up to 95% Efficiency at 5V , 3.3V  
IN  
OUT  
n
n
n
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. The onboard remote sense amplifier is not  
available in the LTM4601-1.  
(15mm × 15mm × 2.82mm) Surface Mount LGA and  
(15mm × 15mm × 3.42mm) BGA Packages  
applicaTions  
n
Telecom and Networking Equipment  
n
Servers  
L, LT, LTC, 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.  
n
Industrial Equipment  
Point of Load Regulation  
n
Efficiency and Power Loss  
vs Load Current  
Typical applicaTion  
1.5V/12A Power Supply with 4.5V to 20V Input  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
4.0  
3.5  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
EFFICIENCY  
5V  
IN  
CLOCK SYNC  
TRACK/SS CONTROL  
V
IN  
4.5V TO 20V  
V
IN  
PLLIN TRACK/SS  
V
1.5V  
12A  
12V  
IN  
OUT  
PGOOD  
V
OUT  
100pF  
V
FB  
12V  
IN  
ON/OFF  
RUN  
COMP  
INTV  
MARG0  
MARG1  
V
OUT_LCL  
MARGIN  
CONTROL  
5V  
C
OUT  
IN  
LTM4601  
C
IN  
CC  
DRV  
DIFFV  
V
V
CC  
OUT  
+
MPGM  
SGND PGND  
POWER LOSS  
OSNS  
–
OSNS  
R1  
392k  
f
SET  
R
SET  
40.2k  
0
2
4
6
8
10  
12  
14  
5% MARGIN  
LOAD CURRENT (A)  
4601 TA01a  
4601 TA01b  
4601fe  
1
For more information www.linear.com/LTM4601  
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