Datasheet

LT3581
2
3581fa
For more information www.linear.com/LT3581
pin conFiguraTion
absoluTe MaxiMuM raTings
V
IN
Voltage ................................................. –0.3V to 40V
SW1/SW2 Voltage ..................................... –0.4V to 42V
RT Voltage ................................................... –0.3V to 5V
SS, FB Voltage .......................................... –0.3V to 2.5V
V
C
Voltage .................................................... –0.3V to 2V
SHDN Voltage ............................................ –0.3V to 40V
SYNC Voltage ............................................ –0.3V to 5.5V
GATE Voltage ............................................. –0.3V to 80V
FA ULT Voltage ............................................ –0.3V to 40V
(Note 1)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
SYNC
SS
RT
SHDN
CLKOUT
SW2
SW2
FB
V
C
GATE
FAULT
V
IN
SW1
SW1
TOP VIEW
DE14 PACKAGE
14-PIN (4mm × 3mm) PLASTIC DFN
15
GND
T
JMAX
= 125°C, θ
JA
= 43°C/W, θ
JC
= 4.3°C/W
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5
6
7
8
FB
V
C
GATE
FAULT
V
IN
SW1
SW1
SW1
16
15
14
13
12
11
10
9
SYNC
SS
RT
SHDN
CLKOUT
SW2
SW2
SW2
TOP VIEW
MSE PACKAGE
16-LEAD PLASTIC MSOP
17
GND
T
JMAX
= 125°C, θ
JA
= 45°C/W, θ
JC
= 10°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3581EDE#PBF LT3581EDE#TRPBF 3581
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LT3581IDE#PBF LT3581IDE#TRPBF 3581
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LT3581HDE#PBF LT3581HDE#TRPBF 3581
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 150°C
LT3581EMSE#PBF LT3581EMSE#TRPBF 3581 16-Lead Plastic MSOP –40°C to 125°C
LT3581IMSE#PBF LT3581IMSE#TRPBF 3581 16-Lead Plastic MSOP –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.
Consult LTC 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/
FA ULT Current .....................................................±500µA
CLKOUT Voltage .......................................... –0.3V to 3V
CLKOUT Current.......................................................1mA
Operating Junction Temperature Range
LT3581E (Notes 2, 4)
......................... –40°C to 125°C
LT3581I (Notes 2, 4)
.......................... –40°C to 125°C
LT3581H (Notes 2, 4) .........................–40°C to 150°C
Storage Temperature Range ..................–65°C to 150°C