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LTM4601AIV-1-PBF Datasheet(PDF) 1 Page - Linear Technology

Part # LTM4601AIV-1-PBF
Description  12A DC/DC 關Modules with PLL, Output Tracking and Margining
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTM4601AIV-1-PBF Datasheet(HTML) 1 Page - Linear Technology

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LTM4601A/LTM4601A-1
1
4601afb
12A DC/DC µModules
with PLL, Output Tracking
and Margining
n Telecom and Networking Equipment
n Servers
n Complete Switch Mode Power Supply
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 Redundant Mounting Pads for Enhanced Solder-
Joint Strength
n Parallel Multiple μModules for Current Sharing
n Differential Remote Sensing for Precision
Regulation (LTM4601A Only)
n PLL Frequency Synchronization
n ±1.5% Total DC Error
n Current Foldback Protection (Disabled at Start-Up)
n Pb-Free (e4) RoHS Compliant Package with Gold
Finish Pads
n UltraFast™ Transient Response
n Current Mode Control
n Up to 95% Efficiency at 5VIN, 3.3VOUT
n Programmable Soft-Start
n Output Overvoltage Protection
n Enhanced (15mm
× 15mm × 2.8mm) Surface Mount
LGA Package
1.5V/12A Power Supply with 4.5V to 20V Input
Efficiency and Power Loss
vs Load Current
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™ is housed in a small surface mount 15mm
× 15mm × 2.8mm LGA package. The LTM4601A LGA
package is designed with redundant mounting pads to
enhance solder-joint strength for extended temperature
cycling endurance. Operating over an input voltage range
of 4.5 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 (2.8mm) and light weight (1.7g) package
easily mounts on the back side of PC boards. The μModule
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.
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
L, LT, LTC, LTM and PolyPhase are registered trademarks of Linear Technology Corporation.
μModule and UltraFast 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.
VOUT
VFB
MARG0
MARG1
VOUT_LCL
DIFFVOUT
VOSNS
+
VOSNS
PGOOD
RUN
COMP
INTVCC
DRVCC
MPGM
TRACK/SS
PLLIN
LTM4601A
ON/OFF
R1
392k
RSET
40.2k
MARGIN
CONTROL
COUT
4601A TA01a
VOUT
1.5V
12A
CLOCK SYNC
TRACK/SS CONTROL
100pF
CIN
VIN
fSET
PGND
SGND
5% MARGIN
VIN
4.5V TO 20V
LOAD CURRENT (A)
0
50
55
65
70
75
95
4601A TA01b
60
24
6
8
10
12
14
80
85
90
0.5
1.0
2.0
4.0
1.5
2.5
3.0
3.5
12VIN
12VIN
5VIN
5VIN
EFFICIENCY
POWER LOSS


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