Datasheet

LTC3619B
2
3619bfb
absoluTe MaxiMuM raTings
Input Supply Voltage (V
IN
) ............................. –0.3 to 6V
V
FB1
, V
FB2
........................................ –0.3V to V
IN
+ 0.3V
RUN1, RUN2, RLIM .......................... –0.3V to V
IN
+ 0.3V
SW1, SW2 ........................................ –0.3V to V
IN
+ 0.3V
PGOOD1, PGOOD2 ........................... –0.3V to V
IN
+ 0.3V
P-channel SW Source Current (DC) (Note 2)
Channel 1 ........................................................ 600mA
Channel 2 ................................................................1A
N-channel SW Source Current (DC) (Note 2)
Channel 1 ........................................................ 600mA
Channel 2 ................................................................1A
(Note 1)
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
V
FB2
RUN2
PGOOD2
SW2
V
IN
V
FB1
RUN1
RLIM
PGOOD1
SW1
11
GND
T
JMAX
= 125°C, θ
JA
= 40°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
V
FB1
RUN1
RLIM
PGOOD1
SW1
10
9
8
7
6
V
FB2
RUN2
PGOOD2
SW2
V
IN
TOP VIEW
MSE PACKAGE
10-LEAD PLASTIC MSOP
11
GND
T
JMAX
= 125°C, θ
JA
= 45°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
pin conFiguraTion
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
V
IN
Operating Voltage Range
l
2.5 5.5 V
V
UV
V
IN
Undervoltage Lockout V
IN
Low to High
l
2.1 2.5 V
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3619BEDD#PBF LTC3619BEDD#TRPBF LFFH
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3619BIDD#PBF LTC3619BIDD#TRPBF LFFH
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3619BEMSE#PBF LTC3619BEMSE#TRPBF LTFFJ 10-Lead Plastic MSOP –40°C to 125°C
LTC3619BIMSE#PBF LTC3619BIMSE#TRPBF LTFFJ 10-Lead Plastic MSOP –40°C to 125°C
Consult LT C Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LT C Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
Peak SW Source and Sink Current (Note 2)
Channel 1 ........................................................ 900mA
Channel 2 ............................................................. 2.7A
Operating Junction Temperature Range
(Notes 3, 6, 8) ........................................–40 to 125°C
Storage Temperature Range .................. –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
MSOP Package .................................................300°C
Reflow Peak Body Temperature ............................ 260°C
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T
A
= 25°C (Note 3)