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LTM4601AHV_15

Description
12A, 28VIN DC/DC Module Regulator with PLL, Output Tracking and Margining
File Size995KB,30 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet View All

LTM4601AHV_15 Overview

12A, 28VIN DC/DC Module Regulator with PLL, Output Tracking and Margining

FeaTures
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LTM4601AHV
12A, 28V
IN
DC/DC µModule
Regulator with PLL, Output
Tracking and Margining
DescripTion
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
continuous current (14A peak). Only bulk input and output
capacitors are needed to complete the design.
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.
An onboard differential remote sense amplifier can be used
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.
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Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 28V
12A DC Typical, 14A Peak Output Current
0.6V to 5V Output Voltage
Output Voltage Tracking and Margining
Redundant Mounting Pads for Enhanced
Solder-Joint Strength
Parallel Multiple µModule
®
Regulators for
Current Sharing
Differential Remote Sensing for Precision Regulation
PLL Frequency Synchronization
±1.5%
Total DC Error
Current Foldback Protection (Disabled at Start-Up)
SnPb or RoHS Compliant Finish
–55°C to 125°C Operating Temperature Range
(LTM4601AHVMPV)
Ultrafast™ Transient Response
Up to 95% Efficiency at 5V
IN
, 3.3V
OUT
Programmable Soft-Start
Output Overvoltage Protection
Enhanced (15mm
×
15mm
×
2.82mm) Surface Mount
LGA and (15mm
×
15mm
×
3.42mm) BGA Packages
applicaTions
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Telecom, Industrial and Networking Equipment
Military and Avionics Systems
Typical applicaTion
2.5V/12A Power Supply with 4.5V to 28V Input
V
IN
4.5V TO 28V
V
IN
PGOOD
ON/OFF
C
IN
RUN
COMP
INTV
CC
DRV
CC
MPGM
PLLIN TRACK/SS
V
OUT
V
FB
MARG0
MARG1
V
OUT_LCL
DIFFV
OUT
V
OSNS+
V
OSNS–
R
SET
19.1k
4601AHV TA01a
Efficiency and Power Loss
vs Load Current
95
90
85
EFFICIENCY (%)
V
OUT
2.5V
12A
80
75
70
65
60
55
50
45
0
2
8
6
4
10
LOAD CURRENT (A)
12
14
EFFICIENCY
12V
IN
24V
IN
4
POWER LOSS
24V
IN
12V
IN
3
2
1
0
POWER LOSS (W)
6
5
CLOCK SYNC
TRACK/SS CONTROL
100pF
MARGIN
CONTROL
LTM4601AHV
C
OUT
R1
392k
5% MARGIN
SGND
PGND
f
SET
4601AHV TA01b
4601ahvfc
For more information
www.linear.com/LTM4601AHV
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