LTC3619B Linear Technology, LTC3619B Datasheet - Page 2

• Manufacturer Part Number: LTC3619B
• Description: 400mA/800mA Synchronous Step-Down DC/DC
• Manufacturer: Linear Technology

absoluTe MaxiMuM raTings
LTC3619B
Input Supply Voltage (V
V
RUN1, RUN2, RLIM .......................... –0.3V to V
SW1, SW2 ........................................ –0.3V to V
PGOOD1, PGOOD2 ........................... –0.3V to V
P-channel SW Source Current (DC) (Note 2)
N-channel SW Source Current (DC) (Note 2)
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH
LTC3619BEDD#PBF
LTC3619BIDD#PBF
LTC3619BEMSE#PBF
LTC3619BIMSE#PBF
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifications, go to:
elecTrical characTerisTics
junction temperature range, otherwise specifications are at T
SYMBOL
V
V

IN
UV
FB1
Channel 1 ........................................................ 600mA
Channel 2 ................................................................1A
Channel 1 ........................................................ 600mA
Channel 2 ................................................................1A
, V
FB2
........................................ –0.3V to V
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
PGOOD1
PARAMETER
V
V
RUN1
RLIM
SW1
10-LEAD (3mm 3mm) PLASTIC DFN
IN
IN
V
FB1
Operating Voltage Range
Undervoltage Lockout
T
JMAX
TAPE AND REEL
LTC3619BEDD#TRPBF
LTC3619BIDD#TRPBF
LTC3619BEMSE#TRPBF
LTC3619BIMSE#TRPBF
1
2
3
4
5
IN
= 125°C, θ
DD PACKAGE
) ............................. –0.3 to 6V
TOP VIEW
GND
11
JA
= 40°C/W
10
9
8
7
6
V
RUN2
PGOOD2
SW2
V
FB2
IN
http://www.linear.com/leadfree/
PART MARKING*
LFFH
LFFH
LTFFJ
LTFFJ
http://www.linear.com/tapeandreel/
IN
IN
IN
IN
CONDITIONS
V
IN
+ 0.3V
+ 0.3V
+ 0.3V
+ 0.3V
The
Low to High
A
(Note 1)
= 25°C (Note 3)
l
denotes the specifications which apply over the full operating
Peak SW Source and Sink Current (Note 2)
Operating Junction Temperature Range
Storage Temperature Range .................. –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
Reflow Peak Body Temperature ............................ 260°C
Channel 1 ........................................................ 900mA
Channel 2 ............................................................. 2.7A
(Notes 3, 6, 8) ........................................–40 to 125°C
MSOP Package ................................................. 300°C
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
PGOOD1
RUN1
RLIM
V
SW1
FB1
T
10-LEAD PLASTIC MSOP
JMAX
1
2
3
4
5
MSE PACKAGE
l
l
= 125°C, θ
TOP VIEW
GND
11
MIN
2.5
JA
= 45°C/W
10
9
8
7
6
TYP
2.1
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
V
RUN2
PGOOD2
SW2
V
www.DataSheet4U.com
FB2
IN
MAX
5.5
2.5
UNITS
3619bfa
V
V