LTM4604
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
V IN , PGOOD ................................................. –0.3V to 6V
TOP VIEW
TRACK
PGOOD
COMP, RUN/SS, FB, TRACK ........................ –0.3V to V IN
A
B
C
D
E
F
G
SW, V OUT ...................................... –0.3V to (V IN + 0.3V)
Operating Temperature Range (Note 2) ... –40°C to 85°C
Junction Temperature ........................................... 125°C
Storage Temperature Range .................. –55°C to 125°C
1
2
3
4
V IN
SW
RUN/
SS
GND
COMP
FB
5
6
7
8
9
10
11
GND
V OUT
For easier PC board layout and assembly due to in-
creased spacing between land grid pads, please refer
to the LTM4604A.
ORDER INFORMATION
LGA PACKAGE
66-PIN (15mm 9mm 2.3mm)
T JMAX = 125°C, θ JA = 25°C/W, θ JC(BOT) = 7°C/W,
θ JC(TOP) = 35°C/W, WEIGHT = 0.86g
LEAD FREE FINISH
LTM4604EV#PBF
LTM4604IV#PBF
TRAY
LTM4604EV#PBF
LTM4604IV#PBF
PART MARKING*
LTM4604V
LTM4604V
PACKAGE DESCRIPTION
15mm × 9mm × 2.3mm LGA
15mm × 9mm × 2.3mm LGA
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°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.
Consult LTC Marketing for information on non-standard lead based ?nish parts.
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 operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 5V unless otherwise noted. See Figure 15.
SYMBOL
PARAMETER CONDITIONS
MIN
TYP
MAX
UNITS
V IN(DC)
Input DC Voltage
l
2.375
5.5
V
V OUT(DC)
Output Voltage, Total Variation C IN = 10μF × 1, C OUT = 22μF × 3, R FB = 5.69k 0.5%
with Line and Load V IN = 2.375V to 5.5V, I OUT = 0A to 4A, 0°C ≤ T A ≤ 85°C
V IN = 2.375V to 5.5V, I OUT = 0A to 4A
l
1.478
1.470
1.5
1.5
1.522
1.522
V
V
Input Speci?cations
V IN(UVLO)
Undervoltage Lockout
I OUT = 0A
1.75
2
2.3
V
Threshold
I INRUSH(VIN)
I Q(VIN NOLOAD)
Peak Input Inrush Current at
Start-Up
Input Supply Bias Current
I OUT = 0A, C IN = 10μF, C OUT = 22μF × 3,
RUN/SS = 0.01μF, V OUT = 1.5V
V IN = 3.3V
V IN = 5V
V IN = 3.3V, V OUT = 1.5V, No Switching
V IN = 3.3V, V OUT = 1.5V, Switching Continuous
V IN = 5V, V OUT = 1.5V, No Switching
V IN = 5V, V OUT = 1.5V, Switching Continuous
Shutdown, RUN = 0, V IN = 5V
0.7
0.7
60
28
100
35
7
A
A
μA
mA
μA
mA
μA
4604fa
2
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