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LTM4606_1

更新时间: 2024-11-30 11:41:27
品牌 Logo 应用领域
凌特 - Linear 稳压器
页数 文件大小 规格书
28页 365K
描述
Ultralow EMI 28VIN, 6A DC/DC μModule Regulator

LTM4606_1 数据手册

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LTM4606  
Ultralow EMI 28V , 6A  
IN  
DC/DC µModule Regulator  
FeaTures  
DescripTion  
n
Complete Low EMI Switch Mode Power Supply  
The LTM®4606 is a complete EN55022 Class B certified  
noisehighvoltage6AswitchingmodeDC/DCpowersupply.  
Includedinthepackagearetheswitchingcontroller,power  
FETs, inductor, and all support components. The on-board  
inputfilterandnoisecancellationcircuitsachievelownoise  
operation, thus effectively reducing the electromagnetic  
interference (EMI). Operating over an input voltage range  
of 4.5V to 28V, the LTM4606 supports an output voltage  
range of 0.6V to 5V, set by a single resistor. This high ef-  
ficiency design delivers 6A continuous current (8A peak).  
Only bulk input and output capacitors are needed to finish  
the design.  
n
Wide Input Voltage Range: 4.5V to 28V  
n
6A DC Typical, 8A Peak Output Current  
n
0.6V to 5V Output Voltage Range  
n
EN55022 Class B Certified  
n
Output Voltage Tracking and Margining  
n
PLL Frequency Synchronization  
±±.ꢀ5ꢁ Total DC Error  
Power Good Output  
n
n
n
Current Foldback Protection (Disabled at Start-Up)  
n
Parallel/Current Sharing  
n
Ultrafast Transient Response  
n
Current Mode Control  
High switching frequency and an adaptive on-time current  
mode architecture enables a very fast transient response  
to line and load changes without sacrificing stability. The  
device supports output voltage tracking and output volt-  
age margining.  
Furthermore,theµModule® regulatorcanbesynchronized  
with an external clock for reducing undesirable frequency  
harmonics and allows PolyPhase® operation for high load  
currents.  
n
Up to 93% Efficiency at 5V , 3.3V  
IN  
OUT  
n
n
n
Programmable Soft-Start  
Output Overvoltage Protection  
–55°C to 125°C Operating Temperature Range  
(LTM4606MPV)  
n
Small Surface Mount Footprint, Low Profile Package  
(15mm × 15mm × 2.8mm)  
applicaTions  
n
ASICs or FPGA Transceivers  
The LTM4606 is offered in a space saving and thermally  
enhanced 15mm × 15mm × 2.8mm LGA package, which  
enables utilization of unused space on the bottom of  
PC boards for high density point of load regulation. The  
LTM4606 is Pb-free and RoHS compliant.  
n
Telecom, Servers and Networking Equipment  
n
Industrial Equipment  
RF Equipment  
n
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and PolyPhase are registered  
trademarks of Linear Technology Corporation. All other trademarks are the property of their  
respective owners.  
Typical applicaTion  
Radiated Emission Scan at ±2VIN, 2.5VOUT/6A  
50  
Ultralow Noise 2.5V/6A Power Supply with 4.5V to 28V Input  
40  
30  
4.5V TO 28V  
CLOCK SYNC  
V
PLLIN  
IN  
2.5V AT 6A  
20  
10  
V
PGOOD  
RUN  
COMP  
OUT  
LTM4606  
47pF  
FB  
ON/OFF  
C
OUT  
V
FB  
R
C
0
IN  
INTV  
DRV  
CC  
CC  
19.1k  
10µF  
35V  
FCB  
–10  
–20  
–30  
MARG0  
MARG1  
MPGM  
f
MARGIN  
CERAMIC  
x2  
SET  
TRACK/SS  
CONTROL  
CONTROL  
TRACK/SS  
V
D
392k  
5% MARGIN  
10µF  
35V  
SGND PGND  
30  
226.2  
128.1 324.3  
FREQUENCY (MHz)  
422.4  
618.6  
814.8  
1010  
520.5  
716.7  
912.9  
4606 TA01a  
4606 TA01b  
4606fb  
1

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