Datasheet

LT3470A
2
3470afb
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
V
IN
, SHDN Voltage ................................................... 40V
BOOST Pin Voltage .................................................. 47V
BOOST Pin Above SW Pin ........................................ 25V
FB Voltage .................................................................. 5V
BIAS Voltage .............................................................15V
SW Voltage ................................................................V
IN
Maximum Junction Temperature
LT3470AE, LT3470AI ........................................ 125°C
LT3470AH ......................................................... 150°C
Operating Temperature Range (Note 2)
LT3470AE ............................................–40°C to 85°C
LT3470AI ........................................... –40°C to 125°C
LT3470AH .......................................... –40°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................300°C
(Note 1)
TOP VIEW
9
DDB8 PACKAGE
8-LEAD (3mm × 2mm) PLASTIC DFN
5
6
7
8
4
3
2
1FB
BIAS
BOOST
SW
SHDN
NC
V
IN
GND
θ
JA
= 80°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3470AEDDB#PBF LT3470AEDDB#TRPBF LDPR 8-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C
LT3470AIDDB#PBF LT3470AIDDB#TRPBF LDPR 8-Lead (3mm × 2mm) Plastic DFN –40°C to 125°C
LT3470AHDDB#PBF LT3470AHDDB#TRPBF LDPR 8-Lead (3mm × 2mm) Plastic DFN –40°C to 150°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/