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LTM4618
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
V IN , SW ...................................................... –0.3V to 28V
TOP VIEW
SW
INTV CC , RUN, EXTV CC , PGOOD .................... –0.3V to 6V
COMP, V FB ................................................. –0.3V to 2.7V
MODE/PLLIN, TK/SS,
FREQ ..................................................... –0.3V to INTV CC
V OUT ............................................................... 0.8V to 5V
Internal Operating Temperature Range
(Note 2).................................................. –40°C to 125°C
Storage Temperature Range................... –55°C to 125°C
V IN
EXTV CC
SGND/PGND
MODE/
PLLIN
FREQ
RUN
7
6
5
4
3
2
1
PGND
V OUT
Peak Package Body Temperature .......................... 250°C
A B C D E
TK/SS COMP V FB PGOOD
F G
INTV CC
H
J
K
L
M
LGA PACKAGE
84-LEAD (15mm
9mm
4.32mm)
Θ JA = 16°C/W, Θ JCtop = 15°C/W, Θ JCbottom = 4°C/W, WEIGHT = 2.3g,
θ JB + θ BA = 16°C/W, θ BA = BOARD-TO-AMBIENT RESISTANCE,
θ VALUES DEFINED PER JESD51-12
ORDER INFORMATION
LEAD FREE FINISH
LTM4618EV#PBF
LTM4618IV#PBF
PART MARKING*
LTM4618V
LTM4618V
PACKAGE DESCRIPTION
84-Lead (15mm × 9mm × 4.32mm) LGA
84-Lead (15mm × 9mm × 4.32mm) LGA
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges. *The temperature grade is identi?ed 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/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full internal
operating temperature range, otherwise speci?cations are at T A = 25°C (Note 2), V IN = 12V, per typical application in Figure 21.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN(DC)
Input DC Voltage
(Note 5)
l
4.5
26.5
V
V OUT(DC)
Output Voltage Total Variation with
C IN = 10μF × 2, R FB = 28.0kΩ
Line and Load
C OUT = 100μF × 3 X7R Ceramic
MODE/PLLIN = 0V, V FREQ = 2.4V
l
2.476
2.52
2.557
V
V IN = 6V to 26.5V, I OUT = 0A to 6A (Note 4)
Input Speci?cations
V IN(UVLO)
Undervoltage Lockout Thresholds
V INTVCC Rising
V INTVCC Falling
2.00
1.85
2.20
2.00
2.35
2.15
V
V
I INRUSH(VIN)
Input Inrush Current at Start-Up
I OUT = 0A, C IN = 10μF × 2, C OUT = 100μF × 3
V OUT = 2.5V
V IN = 12V
V IN = 26.5V
0.3
0.2
A
A
4618fa
2
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