DC/DC uModule. LTM4600 Datasheet

LTM4600 uModule. Datasheet pdf. Equivalent

Part LTM4600
Description 10A High Efficiency DC/DC uModule
Feature LTM4600 10A High Efficiency DC/DC µModule Features n Complete Switch Mode Power Supply n Wide Inp.
Manufacture Linear Technology
Datasheet
Download LTM4600 Datasheet




LTM4600
LTM4600
10A High Efficiency
DC/DC µModule
Features
n Complete Switch Mode Power Supply
n Wide Input Voltage Range: 4.5V to 20V
n 10A DC, 14A Peak Output Current
n Parallel Two µModule® DC/DC Converters for 20A
Output Current
n 0.6V to 5V Output Voltage
n 1.5% Output Voltage Regulation
n Ultrafast Transient Response
n Current Mode Control
n RoHS Compliant Package
n Up to 92% Efficiency
n Programmable Soft-Start
n Output Overvoltage Protection
n Optional Short-Circuit Shutdown Timer
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
L, LT, LTC, LTM, µModule and OPTI-LOOP are registered trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners. Protected by U.S.
Patents including 5481178, 6100678, 6580258, 5847554, 6304066.
Description
The LTM®4600 is a complete 10A, DC/DC step down power
supply. Included in the package are the switching control-
ler, power FETs, inductor, and all support components.
Operating over an input voltage range of 4.5V to 20V, the
LTM4600 supports an output voltage range of 0.6V to 5V,
set by a single resistor. This high efficiency design delivers
10A continuous current (14A peak), needing no heat sinks
or airflow to meet power specifications. Only bulk input
and output capacitors are needed to finish the design.
The low profile package (2.82mm) enables utilization of
unused space on the bottom of PC boards for high density
point of load regulation. High switching frequency and an
adaptive on-time current mode architecture enables a very
fast transient response to line and load changes without
sacrificing stability. Fault protection features include
integrated overvoltage and short circuit protection with
a defeatable shutdown timer. A built-in soft-start timer is
adjustable with a small capacitor.
The LTM4600 is packaged in a compact (15mm × 15mm)
and low profile (2.82mm) over-molded Land Grid Array
(LGA) package suitable for automated assembly by stan-
dard surface mount equipment. The LTM4600 is RoHS
compliant.
Typical Application
10A µModule Power Supply with 4.5V to 20V Input
VIN
4.5V TO 20V
VIN VOUT
CIN
LTM4600
COUT
VOUT
1.5V
10A
VOSET
PGND SGND
66.5k
4600 TA01a
Efficiency vs Load Current
with 12VIN (FCB = 0)
100
90
80
70
60
50
40
30
20
0
1.2VOUT
1.5VOUT
2.5VOUT
3.3VOUT
2468
LOAD CURRENT (A)
10
4600 TA01b
For more information www.linear.com/LTM4600
4600fd
1



LTM4600
LTM4600
Absolute Maximum Ratings
(Note 1)
FCB, EXTVCC, PGOOD, RUN/SS, VOUT.......... –0.3V to 6V
VIN, SVIN, fADJ............................................. –0.3V to 20V
VOSET, COMP............................................. –0.3V to 2.7V
Operating Temperature Range (Note 2)....–40°C to 85°C
Junction Temperature............................................ 125°C
Storage Temperature Range................... –55°C to 125°C
Peak Solder Reflow Body Temperature.................. 245°C
Pin Configuration
TOP VIEW
VIN
PGND
COMP
SGND
RUN/SS
FCB
PGOOD
VOUT
LGA PACKAGE
104-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)
LTM4600EV#PBF
LTM4600IV#PBF
Au (RoHS)
LTM4600EV
LTM4600IV
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
4600fd
2 For more information www.linear.com/LTM4600







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