uModule Regulator. LTM4601HV Datasheet

LTM4601HV Regulator. Datasheet pdf. Equivalent

Part LTM4601HV
Description DC/DC uModule Regulator
Feature LTM4601HV 12A 28VIN DC/DC µModule Regulator with PLL, Output Tracking and Margining FEATURES DES.
Manufacture Linear Technology
Datasheet
Download LTM4601HV Datasheet

LTM4601HV 12A 28VIN DC/DC µModule Regulator with PLL, Outpu LTM4601HV Datasheet
Recommendation Recommendation Datasheet LTM4601HV Datasheet





LTM4601HV
LTM4601HV
12A 28VIN DC/DC µModule
Regulator with PLL, Output
Tracking and Margining
FEATURES
DESCRIPTION
n Complete Switch Mode Power Supply
n Wide Input Voltage Range: 4.5V to 28V
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
n PLL Frequency Synchronization
n ±1.5% Regulation
n Current Foldback Protection (Disabled at Start-Up)
n RoHS Compliant with Pb-Free Finish,
Gold Finish LGA (e4) or SAC 305 BGA (e1)
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 Small Footprint, Low Profile
(15mm × 15mm × 2.82mm) Surface Mount LGA and
(15mm × 15mm × 3.42mm) BGA Packages
APPLICATIONS
n Telecom and Networking Equipment
n Servers
n Industrial Equipment
n Point of Load Regulation
The LTM®4601HV is a complete 12A step-down switch
mode DC/DC power supply with onboard switching control-
ler, 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 28V, the LTM4601HV 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
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.
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.
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and PolyPhase are registered
trademarks and LTpowerCAD is a trademark 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.
TYPICAL APPLICATION
2.5V/12A Power Supply with 4.5V to 28V Input
VIN
4.5V TO 28V
CIN
CLOCK SYNC
TRACK/SS CONTROL
ON/OFF
R1
392k
VIN
PGOOD
PLLIN TRACK/SS
VOUT
VFB
RUN MARG0
COMP
INTVCC
LTM4601HV MARG1
VOUT_LCL
DRVCC
MPGM
DIFFVOUT
VOSNS+
VOSNS–
SGND PGND fSET
5% MARGIN
100pF
MARGIN
CONTROL
VOUT
2.5V
12A
COUT
RSET
19.1k
4601HV TA01a
Efficiency and Power Loss
vs Load Current
95
90 12VIN
85
80 24VIN
75 EFFICIENCY
6
5
4
70 3
65 24VIN
60
12VIN
2
55
POWER LOSS
1
50
45 0
0 2 4 6 8 10 12 14
LOAD CURRENT (A)
4601HV TA01b
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LTM4601HV
LTM4601HV
ABSOLUTE MAXIMUM RATINGS
(Note 1)
INTVCC, DRVCC, VOUT_LCL, VOUT (VOUT ≤ 3.3V with
Remote Sense Amp)..................................... –0.3V to 6V
PLLIN, TRACK/SS, MPGM, MARG0, MARG1,
PGOOD, fSET...............................–0.3V to INTVCC + 0.3V
RUN.............................................................. –0.3V to 5V
VFB, COMP................................................. –0.3V to 2.7V
VVOINS.N..S..+..,..V..O..S..N..S.........................................................–..0....3..V...t.o...I.N–T0V.3CVC
to 28V
+ 0.3V
Operating Temperature Range (Note 2)....–40°C to 85°C
Junction Temperature............................................ 125°C
Storage Temperature Range................... –55°C to 125°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
VIN
PGND
VOUT
LGA PACKAGE
118-LEAD (15mm × 15mm × 2.82mm)
TJMAX = 125°C, θJA = 15°C/W, θJC = 6°C/W,
θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
WEIGHT = 1.7g
fSET
MARG0
MARG1
DRVCC
VFB
PGOOD
SGND
VOSNS+
DIFFVOUT
VOUT_LCL
VOSNS–
VIN
PGND
VOUT
BGA PACKAGE
118-LEAD (15mm × 15mm × 3.42mm)
TJMAX = 125°C, θJA = 15.5°C/W, θJC = 6.5°C/W,
θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
WEIGHT = 1.9g
fSET
MARG0
MARG1
DRVCC
VFB
PGOOD
SGND
VOSNS+
DIFFVOUT
VOUT_LCL
VOSNS–
ORDER INFORMATION
LEAD FREE FINISH TRAY
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTM4601HVEV#PBF LTM4601HVEV#PBF LTM4601HVV
118-Lead (15mm × 15mm × 2.82mm) LGA –40°C to 85°C
LTM4601HVIV#PBF LTM4601HVIV#PBF LTM4601HVV
118-Lead (15mm × 15mm × 2.82mm) LGA –40°C to 85°C
LTM4601HVEY#PBF LTM4601HVEY#PBF LTM4601HVY
118-Lead (15mm × 15mm × 3.42mm) BGA –40°C to 85°C
LTM4601HVIY#PBF LTM4601HVIY#PBF LTM4601HVY
118-Lead (15mm × 15mm × 3.42mm) BGA –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
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