LTM4614 Ver la hoja de datos (PDF) - Linear Technology
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LTM4614 Datasheet PDF : 20 Pages
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LTM4614
Absolute Maximum Ratings
(Note 1)
VIN1, VIN2, PGOOD1, PGOOD2....................... –0.3V to 6V
COMP1, COMP2, RUN/SS1, RUN/SS2
FB1, FB2,TRACK1, TRACK2.......................... –0.3V to VIN
SW1, SW2, VOUT1, VOUT2............... –0.3V to (VIN + 0.3V)
Internal Operating Temperature Range
(Notes 2, 3)............................................. –40°C to 125°C
Storage Temperature Range................... –55°C to 125°C
Body Temperature, Solder Reflow.......................... 245°C
Pin Configuration
(See Pin Functions, Pin Configuration Table)
RUN/SS1
M
TOP VIEW
PGOOD1
TRACK1 COMP1 FB1
L
K
VIN1
J
VOUT1
H
SW1
G
GND1
F
E
D
VIN2
C
VOUT2
B
SW2
A
GND2
1 2 3 4 5 6 7 8 9 10 11 12
RUN/SS2
PGOOD2
FB2
TRACK2 COMP2
LGA PACKAGE
144-LEAD (15mm × 15mm × 2.82mm)
TJMAX = 125°C, θJCbottom = 2-3°C/W, θJA = 15°C/W, θJCtop = 25°C/W, θ Values Determined
Using a 4-Layer 95mm × 76mm PCB, Weight = 1.7g
Order Information
LEAD FREE FINISH
TRAY
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE (Note 2)
LTM4614EV#PBF
LTM4614EV#PBF LTM4614V
144-Lead (15mm × 15mm × 2.82mm) LGA –40°C to 125°C
LTM4614IV#PBF
LTM4614IV#PBF LTM4614V
144-Lead (15mm × 15mm × 2.82mm) LGA –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified 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 specifications which apply over the full internal
operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 5V unless otherwise noted. Refer to Figure 1.
Specified as each channel (Note 5).
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN(DC)
VOUT(DC)
Input DC Voltage
Output Voltage
l 2.375
5.5
V
CIN = 22µF, COUT = 100µF, RFB = 5.76k
VIN = 2.375V to 5.5V, IOUT = 0A to 4A (Note 4)
0°C ≤ TJ ≤ 125°C
1.460 1.49 1.508
V
l 1.45 1.49 1.512
V
VIN(UVLO)
IINRUSH(VIN)
Undervoltage Lockout Threshold
Input Inrush Current at Start-Up
IQ(VIN)
Input Supply Bias Current
IOUT = 0A
IOUT = 0A, CIN = 22µF, COUT = 100µF, VOUT = 1.5V
VIN = 5.5V
VIN = 2.375V, VOUT = 1.5V, Switching Continuous
VIN = 5.5V, VOUT = 1.5V, Switching Continuous
Shutdown, RUN = 0, VIN = 5V
1.6
2
2.3
V
0.35
A
20
mA
35
mA
7
12
µA
4614fb
2
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