Datasheet
LTC3775
2
3775fa
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
V
IN
......................................................... –0.3V to 40V
BOOST ................................................... –0.3V to 46V
BOOST-SW ............................................... –0.3V to 6V
SW ............................................................ –5V to 40V
I
LIMT
.............................................................–0.3V to V
IN
SENSE .............................................................–5V to V
IN
INTV
CC
......................................................... –0.3V to 6V
(Note 1)
16 15 14 13
5 6 7 8
TOP VIEW
UD PACKAGE
16-LEAD (3mm s 3mm) PLASTIC QFN
9
10
11
12
4
3
2
1I
LIMT
I
LIMB
FB
COMP
SW
V
IN
SENSE
INTV
CC
RUN/SHDN
MODE/SYNC
BOOST
TG
SS
FREQ
SGND
BG
17
PGND
T
JMAX
= 125°C, θ
JA
= 68°C/W, θ
JC
= 4.2°C/W (NOTE 3)
EXPOSED PAD (PIN 17) IS PGND, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
MODE/SYNC
RUN/SHDN
I
LIMT
I
LIMB
FB
COMP
SS
FREQ
16
15
14
13
12
11
10
9
BOOST
TG
SW
V
IN
SENSE
INTV
CC
BG
SGND
TOP VIEW
17
PGND
MSE PACKAGE
16-LEAD PLASTIC MSOP
T
JMAX
= 125°C, θ
JA
= 40°C/W (NOTE 3)
EXPOSED PAD (PIN 17) IS PGND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3775EUD#PBF LTC3775EUD#TRPBF LDJK
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 85°C
LTC3775IUD#PBF LTC3775IUD#TRPBF LDJK
16-Lead (3mm × 3mm) Plastic QFN
–40°C to 125°C
LTC3775EMSE#PBF LTC3775EMSE#TRPBF 3775 16-Lead Plastic MSOP –40°C to 85°C
LTC3775IMSE#PBF LTC3775IMSE#TRPBF 3775 16-Lead Plastic MSOP –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/
RUN/SHDN ................................................... –0.3V to 6V
FB, MODE/SYNC ................................... –0.3V to INTV
CC
FREQ, I
LIMB
, SS ..................................... –0.3V to INTV
CC
INTV
CC
RMS Currents... .........................................50mA
Operating Junction Temperature Range
(Note 2) .................................................. –40°C to 125°C
Storage Temperature Range ................... –65°C to 150°C