lt3470a Linear Technology Corporation, lt3470a Datasheet - Page 2

• Manufacturer Part Number: lt3470a
• Description: Micropower Buck Regulator With Integrated Boost And Catch Diodes
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LT3470A
(Note 1)
V
BOOST Pin Voltage .................................................. 47V
BOOST Pin Above SW Pin ........................................ 25V
FB Voltage .................................................................. 5V
BIAS Voltage .............................................................15V
SW Voltage ................................................................V
Maximum Junction Temperature
Operating Temperature Range (Note 2)
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C
ORDER INFORMATION
LEAD FREE FINISH
LT3470AEDDB#PBF
LT3470AIDDB#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
IN
LT3470AE, LT3470AI ......................................... 125°C
LT3470AE .............................................– 40°C to 85°C
LT3470AI............................................ –40°C to 125°C
, SHDN Voltage ................................................... 40V
TAPE AND REEL
LT3470AEDDB#TRPBF
LT3470AIDDB#TRPBF
http://www.linear.com/leadfree/
PART MARKING*
LDPR
LDPR
http://www.linear.com/tapeandreel/
IN
PIN CONFIGURATION
PACKAGE DESCRIPTION
8-Lead (3mm × 2mm) Plastic DFN
8-Lead (3mm × 2mm) Plastic DFN
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
8-LEAD (3mm × 2mm) PLASTIC DFN
BOOST
BIAS
SW
FB
DDB8 PACKAGE
θ
1
2
3
4
JA
TOP VIEW
= 80°C/W
9
8
7
6
5
SHDN
NC
V
GND
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
IN
3470af