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Linear Technology Electronic Components Datasheet

LTM4630 Datasheet

Dual 18A or Single 36A DC/DC uModule Regulator

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LTM4630
Dual 18A or Single 36A
DC/DC µModule Regulator
FEATURES
n Dual 18A or Single 36A Output
n Wide Input Voltage Range: 4.5V to 15V
n Output Voltage Range: 0.6V to 1.8V
n ±1.5% Maximum Total DC Output Error Over Line,
Load and Temperature
n Differential Remote Sense Amplifier
n Current Mode Control/Fast Transient Response
n Adjustable Switching Frequency
n Overcurrent Foldback Protection
n Multiphase Parallel Current Sharing with Multiple
LTM4630s Up to 144A
n Frequency Synchronization
n Internal Temperature Monitor
n Pin Compatible with the LTM4620 and LTM4620A (Dual
13A, Single 26A) and LTM4628 (Dual 8A, Single 16A)
n Selectable Burst Mode® Operation
n Soft-Start/Voltage Tracking
n Output Overvoltage Protection
n 16mm × 16mm × 4.41mm LGA and 16mm × 16mm ×
5.01mm BGA Packages
APPLICATIONS
n Telecom and Networking Equipment
n Storage and ATCA Cards
n Industrial Equipment
DESCRIPTION
The LTM®4630 is a dual 18A or single 36A output switching
mode step-down DC/DC µModule® (micromodule) regula-
tor. Included in the package are the switching controllers,
power FETs, inductors, and all supporting components.
Operating from an input voltage range of 4.5V to 15V, the
LTM4630 supports two outputs each with an output voltage
range of 0.6V to 1.8V, each set by a single external resistor.
Its high efficiency design delivers up to 18A continuous
current for each output. Only a few input and output ca-
pacitors are needed. The LTM4630 is pin compatible with
the LTM4620 and LTM4620A (dual 13A, single 26A) and
the LTM4628 (dual 8A, single 16A).
The device supports frequency synchronization, multi-
phase operation, Burst Mode operation and output voltage
tracking for supply rail sequencing and has an onboard
temperature diode for device temperature monitoring. High
switching frequency and a current mode architecture enable
a very fast transient response to line and load changes
without sacrificing stability.
Fault protection features include overvoltage and
overcurrent protection. The LTM4630 is offered in 16mm
× 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm
BGA packages. The LTM4630 is ROHS compliant.
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode and PolyPhase are
registered trademarks of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5929620,
6100678, 6144194, 6177787, 6304066 and 6580258. Other patents pending.
TYPICAL APPLICATION
36A, 1.2V Output DC/DC µModule Regulator
INTVCC
4.7µF
10k
VIN
4.5V TO 15V
10k
22µF
25V 120k
×4
5.1V
0.1µF
121k
MODE_PLLIN
VIN
TEMP
RUN1
RUN2
TRACK1
TRACK2
fSET
PHASMD
CLKOUT INTVCC
LTM4630
SGND GND
DIFFP
EXTVCC PGOOD1
VOUT1
VOUTS1
DIFFOUT
SW1
VFB1
VFB2
COMP1
COMP2
VOUTS2
VOUT2
SW2
PGOOD2
DIFFN
PGOOD
100µF +
6.3V
60.4k
100µF +
6.3V
PGOOD
470µF
6.3V
470µF
6.3V
VOUT
1.2V
36A
4630 TA01a
For more information www.linear.com/LTM4630
1.2VOUT Efficiency vs IOUT
95
VIN = 5V
90
85 VIN = 12V
80
75
70
65
0 2 4 6 8 10 12 14 16 18
OUTPUT CURRENT (A)
4630 TA01b
4630fa
1


Linear Technology Electronic Components Datasheet

LTM4630 Datasheet

Dual 18A or Single 36A DC/DC uModule Regulator

No Preview Available !

LTM4630
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN (Note 8)................................................ –0.3V to 16V
VSW1, VSW2.................................................... –1V to 16V
PGOOD1, PGOOD2, RUN1, RUN2,
INTVCC, EXTVCC............................................ –0.3V to 6V
MODE_PLLIN, fSET, TRACK1, TRACK2,
DIFFOUT, PHASMD................................. –0.3V to INTVCC
VOUT1, VOUT2, VOUTS1, VOUTS2 (Note 6)......... –0.3V to 6V
DIFFP, DIFFN........................................... –0.3V to INTVCC
COMP1, COMP2, VFB1, VFB2 (Note 6)......... –0.3V to 2.7V
INTVCC Peak Output Current.................................100mA
Internal Operating Temperature Range
(Note 2).............................................. –40°C to 125°C
Storage Temperature Range.................... –55°C to 125°C
Peak Package Body Temperature........................... 245°C
PIN CONFIGURATION
M
L
K
J
CLKOUT
SW1
PHASMD
MODE_PLLIN
H
G
F
TRACK1 E
VFB1 D
VOUTS1
C
B
A
1
TOP VIEW
TEMP EXTVCC
VIN
RUN1 SGND
GND COMP1 COMP2
SGND VFB2 TRACK2
GND
fSET SGND VOUTS2
VOUT1
GND
VOUT2
2 3 4 5 6 7 8 9 10 11 12
LGA PACKAGE
144-LEAD (16mm × 16mm × 4.41mm)
SINWTV2CC
PGOOD1
PGOOD2
RUN2
DDDIIIFFFFFFPONUT
TJMAX = 125°C, ΘJA = 7°C/W, ΘJCbottom = 1.5°C/W, ΘJCtop = 3.7°C/W, ΘJB + ΘJBA 7°C/W
Θ VALUES DEFINED PER JESD 51-12
WEIGHT = 3.2g
TOP VIEW
TEMP EXTVCC
M
L
K
J
CLKOUT
SW1
PHASMD
MODE_PLLIN
H
G
F
TRACK1 E
VFB1 D
VOUTS1
C
B
A
RUN1 SGND
GND COMP1 COMP2
SGND VFB2 TRACK2
GND
fSET SGND VOUTS2
GND
VOUT2
SINWTV2CC
PGOOD1
PGOOD2
RUN2
DDDIIIFFFFFFPONUT
1 2 3 4 5 6 7 8 9 10 11 12
BGA PACKAGE
144-LEAD (16mm × 16mm × 4.41mm)
TJMAX = 125°C, ΘJA = 7°C/W, ΘJCbottom = 1.5°C/W, ΘJCtop = 3.7°C/W, ΘJB + ΘJBA 7°C/W
Θ VALUES DEFINED PER JESD 51-12
WEIGHT = 3.2g
ORDER INFORMATION
PART NUMBER
LTM4630EV#PBF
LTM4630IV#PBF
LTM4630EY#PBF
LTM4630IY#PBF
LTM4630IY
PAD OR BALL FINISH
Au (RoHS)
Au (RoHS)
SAC305 (RoHS)
SAC305 (RoHS)
SnPb (63/37)
PART MARKING*
DEVICE
FINISH CODE
LTM4630V
e4
LTM4630V
e4
LTM4630Y
e1
LTM4630Y
e1
LTM4630Y
e0
PACKAGE
TYPE
LGA
LGA
BGA
BGA
BGA
MSL
RATING
3
3
3
3
3
TEMPERATURE RANGE
(Note 2)
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
Consult Marketing for parts specified with wider operating temperature
ranges. *Device temperature grade is indicated by a label on the shipping
container. 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
4630fa
2 For more information www.linear.com/LTM4630


Part Number LTM4630
Description Dual 18A or Single 36A DC/DC uModule Regulator
Maker Linear Technology
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LTM4630 Datasheet PDF





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