lt3990 Linear Technology Corporation, lt3990 Datasheet - Page 2

• Manufacturer Part Number: lt3990
• Description: 60v, 350ma Step-down Regulator With 2.5?a Quiescent Current And Integrated Diodes
• Manufacturer: Linear Technology Corporation

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LT3990
V
BOOST Pin Voltage ...................................................75V
BOOST Pin Above SW Pin .........................................30V
FB, RT Voltage.............................................................6V
PG, BD Voltage .........................................................30V
pin conFiguraTion
orDer inFormaTion
LEAD FREE FINISH
LT3990EDD#PBF
LT3990IDD#PBF
LT3990EMSE#PBF
LT3990IMSE#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:

IN
, EN/UVLO Voltage ...............................................60V
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
EN/UVLO
10-LEAD (3mm 3mm) PLASTIC DFN
GND
GND
V
FB
IN
θ
JA
TAPE AND REEL
LT3990EDD#TRPBF
LT3990IDD#TRPBF
LT3990EMSE#TRPBF
LT3990IMSE#TRPBF
1
2
3
4
5
= 45°C/W, θ
DD PACKAGE
TOP VIEW
GND
11
JC
= 10°C/W
10
9
8
7
6
RT
PG
BD
BOOST
SW
http://www.linear.com/leadfree/
PART MARKING*
LFWJ
LFWJ
3990
3990
http://www.linear.com/tapeandreel/
(Note 1)
Operating Junction Temperature Range (Note 2)
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
LT3990E ............................................. –40°C to 125°C
LT3990I .............................................. –40°C to 125°C
MS Only ............................................................ 300°C
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
16-Lead Plastic MSOP
16-Lead Plastic MSOP
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
EN/UVLO
GND
V
NC
NC
NC
FB
FB
IN
θ
1
2
3
4
5
6
7
8
16-LEAD PLASTIC MSOP
JA
= 40°C/W, θ
MSE PACKAGE
TOP VIEW
GND
17
JC
= 10°C/W
16
15
14
13
12
11
10
9
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
RT
NC
PG
BD
NC
BOOST
NC
SW
3990p