LTM4705
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Note 1)
TOP VIEW
V
V
, V ................................................... –0.3V to 22V
OUT1 OUT2
RUN1, RUN2 .............................................. –0.3V to 22V
IN1 IN2
1
2
3
4
5
6
7
, V
, PGOOD1, PGOOD2................ –0.3V to 6V
FB2 COMP2 RUN2 FREQ RUN1 COMP1 FB1
A
B
C
D
E
F
SYNC/MODE
TRACK/SS1
TRACK/SS2
PGOOD2
INTV
CC
PGOOD1
INTV , TRACK/SS1, TRACK/SS2............ –0.3V to 3.6V
SYNC/MODE, COMP1, COMP2,
FB1, FB2,...............................................–0.3V to INTV
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Storage Temperature Range .................. –55°C to 125°C
Peak Solder Reflow Body Temperature.................260°C
CC
GND
SGND
GND
CC
V
IN2
V
IN1
GND
G
H
J
V
OUT2
V
OUT1
BGA PACKAGE
63-PIN (6.25mm × 7.5mm × 3.22mm)
T
= 125°C, θ
JCtop
= 22°C/W, θ
= 4°C/W,
JMAX
JCbottom
= 17°C/W, WEIGHT = 0.46g
θ
JA
ORDER INFORMATION
PART MARKING*
PACKAGE
TYPE
MSL
TEMPERATURE RANGE
(SEE NOTE 2)
PART NUMBER
LTM4705EY#PBF
LTM4705IY#PBF
PAD OR BALL FINISH
DEVICE
FINISH CODE
RATING
LTM4705Y
LTM4705Y
Au (RoHS)
e1
BGA
3
–40°C to 125°C
• Contact the factory for parts specified with wider operating temperature
ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609.
• Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures
• LGA and BGA Package and Tray Drawings
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range (Note 2), otherwise specifications are at TA = 25°C (Note 2), VIN1 = VIN2 = 12V, unless otherwise noted per the
typical application shown in Figure 23.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Switching Regulator Section: Per Channel
l
l
l
l
V
V
V
V
Input DC Voltage
Input DC Voltage
Output Voltage Range
3.1
1.5
20
20
V
V
V
V
IN1
3.1V < V < 20V
IN2
IN1
0.6
5.5
OUT(RANGE)
OUT(DC)
Output Voltage, Total Variation with
Line and Load
C
= 22µF, C
CC IN1
= 0A to 5A
= 100µF Ceramic, R = 40.2k, MODE =
IN2
1.477
1.5
1.523
IN
OUT
FB
INTV , V = V = 3.1V to 20V,
I
OUT
V
RUN Pin On Threshold
RUN Threshold Rising
RUN Threshold Falling
1.16
0.96
1.27
1
1.35
1.06
V
V
RUN
I
Input Supply Bias Current
V
V
= V = 12V, V = 1.5V, MODE = GND
OUT
15
79
75
mA
mA
µA
Q(VIN)
IN1
IN1
IN2
= V = 12V, V
= 1.5V, MODE = INTV , I
= 0.5A
IN2
OUT
CC OUT
Shutdown, RUN1 = RUN2 = 0
Rev. 0
2
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