DC/DC uModule. LTM4603HV Datasheet

LTM4603HV uModule. Datasheet pdf. Equivalent

Part LTM4603HV
Description DC/DC uModule
Feature Features n Complete Switch Mode Power Supply n Wide Input Voltage Range: 4.5V to 28V n 6A DC Typi.
Manufacture Linear Technology
Datasheet
Download LTM4603HV Datasheet

Features n Complete Switch Mode Power Supply n Wide Input LTM4603HV Datasheet
Recommendation Recommendation Datasheet LTM4603HV Datasheet





LTM4603HV
Features
n Complete Switch Mode Power Supply
n Wide Input Voltage Range: 4.5V to 28V
n 6A DC Typical, 8A Peak Output Current
n 0.6V to 5V Output Voltage
n Output Voltage Tracking and Margining
n Remote Sensing for Precision Regulation
n Typical Operating Frequency: 1MHz
n PLL Frequency Synchronization
n 1.5% Regulation
n Current Foldback Protection (Disabled at Start-Up)
n Pin Compatible with the LTM4601/LTM4601HV/
LTM4603
n Ultrafast Transient Response
n Current Mode Control
n Up to 93% Efficiency at 5VIN, 3.3VOUT
n Programmable Soft-Start
n Output Overvoltage Protection
n RoHS Compliant Package with Gold Finish Pads (e4)
n Small Footprint, Low Profile (15mm × 15mm ×
2.82mm) Surface Mount LGA Package
Applications
n Telecom and Networking Equipment
n Servers
n Industrial Equipment
n Point of Load Regulation
LTM4603HV
6A, 28VIN DC/DC µModule
with PLL, Output Tracking
and Margining
Description
The LTM®4603HV is a complete 6A step-down switch mode
DC/DC power supply with onboard switching controller,
MOSFETs, inductor and all support components. The
µModuleTM is housed in a small surface mount 15mm ×
15mm × 2.82mm LGA package. Operating over an input
voltage range of 4.5 to 28V, the LTM4603HV supports
an output voltage range of 0.6V to 5V as well as output
voltage tracking and margining. The high efficiency design
delivers 6A continuous current (8A peak). Only bulk input
and output capacitors are needed to complete the design.
The low profile (2.82mm) and light weight (1.7g) package
easily mounts on the unused space on the back side of
PC boards for high density point of load regulation. The
µModule 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 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/6A with 4.5V to 28V Input µModule Regulator
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
LTM4603HV MARG1
VOUT_LCL
DRVCC
MPGM
DIFFVOUT
VOSNS+
VOSNS–
SGND PGND fSET
100pF
MARGIN
CONTROL
RSET
19.1k
VOUT
2.5V
6A
COUT
5% MARGIN
4603HV TA01a
Efficiency vs Load Current with 24VIN
100
90
80
70
60
50
40
01
24VIN, 1.8VOUT
24VIN, 2.5VOUT
24VIN, 3.3VOUT
24VIN, 5VOUT
2 34 5 6 7
LOAD CURRENT (A)
4603HV TA01b
For more information www.linear.com/LTM4603HV
4603hvfa
1



LTM4603HV
LTM4603HV
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
VIN fSET
MARG0
MARG1
PGND
DRVCC
VFB
PGOOD
VOUT
SGND
VOSNS+
DIFFVOUT
VOUT_LCL
VOSNS–
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
Order Information
PART NUMBER
PAD OR BALL FINISH
PART MARKING*
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL
RATING
TEMPERATURE RANGE
(SEE NOTE 2)
LTM4603HVEV#PBF
LTM4603HVIV#PBF
Au (RoHS)
LTM4603HVV
e4
LGA
3 –40°C to 85°C
Consult Marketing for parts specified with wider operating temperature
ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609.
Terminal Finish Part Marking: www.linear.com/leadfree
Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures: www.linear.com/umodule/pcbassembly
LGA and BGA Package and Tray Drawings: www.linear.com/packaging
E lectrical Characteristics The l denotes the specifications which apply over the full operating
temperature range
RSET = 40.2k.
(Note
2),
otherwise
specifications
are
at
TA
=
25°C,
VIN
=
12V,
per
typical
application
(front
page)
configuration,
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN(DC)
VOUT(DC)
Input DC Voltage
Output Voltage
Input Specifications
l 4.5
CIN = 10µF ×2, COUT = 2× 100µF X5R Ceramic
VVIINN
=
=
51V2V, V, VOUOTUT==1.15.V5V, I,OIUOTUT==0A0A
l 1.478
l 1.478
1.5
1.5
28
1.522
1.522
V
V
V
VIN(UVLO)
IINRUSH(VIN)
Undervoltage Lockout Threshold
Input Inrush Current at Startup
IOUT = 0A
IOUT = 0A. VOUT = 1.5V
VIN = 5V
VIN = 12V
3.2 4
0.6
0.7
V
A
A
2
For more information www.linear.com/LTM4603HV
4603hvfa





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