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LTM4601AEY-1#PBF

Description
DC DC CONVERTER 0.6-5V 12A
CategoryPower/power management   
File Size559KB,30 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
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LTM4601AEY-1#PBF Overview

DC DC CONVERTER 0.6-5V 12A

LTM4601AEY-1#PBF Parametric

Parameter NameAttribute value
typeNon-isolated PoL module
Number of outputs1
Voltage - Input (minimum)4.5V
Voltage - input (maximum)20V
Voltage - Output 10.6 ~ 5 V
Voltage - Output 2-
Voltage - Output 3-
Current - Output (maximum)12A
applicationITE (Business)
characteristicOVP,SCP,UVLO
Operating temperature-40°C ~ 85°C
efficiency-
Installation typesurface mount
Package/casing133-BBGA module
size/dimensions0.59" long x 0.59" wide x 0.13" high (15.0mm x 15.0mm x 3.4mm)
Supplier device packaging133-BGA(15x15)
FEATURES
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LTM4601A/LTM4601A-1
12A µModule Regulators
with PLL, Output Tracking
and Margining
DESCRIPTION
The
LTM
®
4601A
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 a small surface mount
15mm
×
15mm
×
2.82mm LGA or 15mm
×
15mm
×
3.42mm BGA package. The LTM4601A 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 20V, the LTM4601A supports an output voltage
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
on the back side of PC boards. 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 onboard remote sense amplifier is not
available in the LTM4601A-1.
L,
LT, LTC, LTM, µModule and PolyPhase are registered trademarks of Linear Technology
Corporation. 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, 6304066, 6476589, 6580258, 6677210, 6774611.
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Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 20V
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 µModules for Current Sharing
Differential Remote Sensing for Precision
Regulation (LTM4601A Only)
PLL Frequency Synchronization
±1.5% Total DC Error
Current Foldback Protection (Disabled at Start-Up)
SnPb or RoHS Compliant Finish
UltraFast™ Transient Response
Current Mode Control
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 and Networking Equipment
Servers
TYPICAL APPLICATION
1.5V/12A Power Supply with 4.5V to 20V Input
V
IN
4.5V TO 20V
V
IN
PGOOD
ON/OFF
C
IN
RUN
COMP
INTV
CC
DRV
CC
MPGM
SGND
PLLIN TRACK/SS
V
OUT
V
FB
MARG0
MARG1
V
OUT_LCL
DIFFV
OUT
V
OSNS+
V
OSNS–
R
SET
40.2k
4601A TA01a
Efficiency and Power Loss
vs Load Current
95
90
V
OUT
1.5V
12A
85
EFFICIENCY (%)
80
75
70
65
60
55
50
0
2
EFFICIENCY
5V
IN
4.0
3.5
12V
IN
3.0
2.5
12V
IN
5V
IN
2.0
1.5
POWER LOSS
1.0
0.5
CLOCK SYNC
TRACK/SS CONTROL
100pF
MARGIN
CONTROL
POWER LOSS (W)
LTM4601A
C
OUT
R1
392k
5% MARGIN
PGND
f
SET
4
6
8
10
LOAD CURRENT (A)
12
14
4601A TA01b
4601afe
For more information
www.linear.com/LTM4601A
1

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