LT3470AEDDB#TRMPBF Linear Technology, LT3470AEDDB#TRMPBF Datasheet - Page 2

• Manufacturer Part Number: LT3470AEDDB#TRMPBF
• Description: IC BUCK ADJ .25A 8DFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LT3470AEDDB#TRMPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 16 V
• Current - Output: 250mA
• Voltage - Input: 4 ~ 40 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -

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
LT3470AHDDB#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:
2
IN
LT3470AE, LT3470AI ........................................ 125°C
LT3470AH ......................................................... 150°C
LT3470AE ............................................– 40°C to 85°C
LT3470AI ........................................... –40°C to 125°C
LT3470AH .......................................... –40°C to 150°C
, SHDN Voltage ................................................... 40V
TAPE AND REEL
LT3470AEDDB#TRPBF
LT3470AIDDB#TRPBF
LT3470AHDDB#TRPBF
http://www.linear.com/leadfree/
PART MARKING*
LDPR
LDPR
LDPR
http://www.linear.com/tapeandreel/
IN
PIN CONFIGURATION
PACKAGE DESCRIPTION
8-Lead (3mm × 2mm) Plastic DFN
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
–40°C to 150°C
IN
3470afb