LTM4650A 반도체 회로 부품 판매점
Dual 25A or Single 50A DC/DC uModule Regulator
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 Linear Technology |
Features
LTM4650A
Dual 25A or Single 50A
DC/DC µModule Regulator
with 1% DC Accuracy
Description
nn Dual 25A or Single 50A Output
nn Input Voltage Range: 4.5V to 16V
nn Output Voltage Range: 0.6V to 5.5V
nn ±1% Maximum Total DC Output Error Over Line,
Load and Temperature
nn Higher Light Load Efficiency and Wider VOUT Range
Than LTM4650-1
nn Differential Remote Sense Amplifier
nn Current Mode Control/Fast Transient Response
nn Multiphase Parallel Current Sharing Up to 300A
nn Internal Temperature Monitor
nn Adjustable Switching Frequency or Synchronization
nn Overcurrent Foldback Protection
nn Selectable Burst Mode® Operation, Pulse-Skipping
Mode Operation
nn Soft-Start/Voltage Tracking
nn Output Overvoltage Protection
nn 16mm × 16mm × 5.01mm BGA Package
Applications
nn Telecom and Networking Equipment
nn Storage and ATCA Cards
nn Industrial Equipment
The LTM®4650A is a dual 25A or single 50A output switch-
ing mode step-down DC/DC µModule® (micromodule)
regulator with ±1% total DC output error. Included in the
package are the switching controllers, power FETs, induc-
tors and all supporting components. Operating from an
input voltage range of 4.5V to 16V, the LTM4650A supports
two outputs with an output voltage range of 0.6V to 5.5V,
each set by a single external resistor. Its high efficiency
design delivers up to 25A continuous current for each
output. Only a few input and output capacitors are needed.
Fast internal control loop compensation allows for fast
transient response to minimize output capacitance when
powering FPGAs, ASICs, and processors.
Fault protection features include overvoltage and over-
current protection. The LTM4650A is offered in 16mm ×
16mm × 5.01mm BGA package.
LTM4650 Product Family Selection Table
LTM4650
LTM4650-1B
LTM6450-1A
RAVNINGE
4.5V to
15V
RVAONUGTE
IOUT
0.6V to
1.8V
25A × 2
LTM4650A 4.5V to 0.6V to
LTM4650A-1 16V
5.5V
COMPEN-
SATION
Internal
External
Internal
External
ACDCCUVROAUCTY
1.5%
0.8%
1%
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode, PolyPhase and
LTpowerCAD are registered trademarks of Analog Devices, Inc. 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
50A, 3.3V Output DC/DC µModule Regulator
INTVCC
VIN
4.5V TO 16V
22µF
25V
×4
4.7µF
120k
0.1µF
INTVCC
PINS NOT USED IN
THIS CIRCUIT:
CLKOUT
EXTVCC
SW1
SW2
VOUTS2
10k
PGOOD
INTVCC
VIN
TEMP
TRACK1
TRACK2
fSET
COMP1
COMP2
RUN1
RUN2
PHASMD
SGND
PGOOD1
LTM4650A
PGOOD2
VOUT1
VOUTS1
DIFFOUT
VFB1
VFB2
GND
VOUT2
DIFFP
DIFFN
MODE_PLLIN
4650A TA01a
100µF +
6.3V
470µF
6.3V
13.3k
100µF
6.3V
+
VOUT
3.3V/50A
470µF
6.3V
For more information www.linear.com/LTM4650A
3.3VOUT Efficiency vs IOUT
100
95
90
85
80
75
70 12 VIN, 3.3VOUT, 600kHz
5 VIN, 3.3VOUT, 600kHz
65
0 10 20 30 40 50
LOAD CURRENT (A)
4650A TA01b
4650af
1
LTM4650A
Absolute Maximum Ratings
(Note 1)
VIN (Note 7)................................................ –0.3V to 18V
VSW1, VSW2.....................................................–1V to 18V
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...................................50mA
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
TOP VIEW
TEMP EXTVCC
M
L
VIN
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
VOUT1
GND
VOUT2
1 2 3 4 5 6 7 8 9 10 11
BGA PACKAGE
144-LEAD (16mm × 16mm × 5.01mm)
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 = 3.8g
12
SINWTV2CC
PGOOD1
PGOOD2
RUN2
DDDIIIFFFFFFPONUT
Order Information http://www.linear.com/product/LTM4650A#orderinfo
PART NUMBER
PAD OR BALL FINISH
PART MARKING*
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL TOTAL DC TEMPERATURE
RATING ACCURACY RANGE (Note 2)
LTM4650AEY#PBF
SAC305 (RoHS)
LTM4650AY
e1
BGA 3 ±1% –40°C to 125°C
LTM4650AIY#PBF
SAC305 (RoHS)
LTM4650AY
e1
BGA 3 ±1% –40°C to 125°C
LTM4650AIY
SnPb (63/37)
LTM4650AY
e0
BGA 3 ±1% –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
4650af
2
For more information www.linear.com/LTM4650A
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LTM4650A regulator
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
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