Linear Technology LT3480, Руководство пользователя

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LT3480
2
3480fb
ABSOLUTE MAXIMUM RATINGS
V
IN
, RUN/SS Voltage (Note 5) ...................................60V
BOOST Pin Voltage ...................................................56V
BOOST Pin Above SW Pin .........................................30V
FB, RT, V
C
Voltage .......................................................5V
PG, BD, SYNC Voltage ..............................................30V
Maximum Junction Temperature........................... 125°C
(Note 1)
TOP VIEW
DD PACKAGE
10-LEAD (3mm s 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
11
2
1 RT
V
C
FB
PG
SYNC
BD
BOOST
SW
V
IN
RUN/SS
JA
= 45°C/W,
JC
= 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
1
2
3
4
5 BD
BOOST
SW
V
IN
RUN/SS
10
9
8
7
6 RT
V
C
FB
PG
SYNC
TOP VIEW
MSE PACKAGE
10-LEAD PLASTIC MSOP
11
JA
= 45°C/W,
JC
= 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3480EDD#PBF LT3480EDD#TRPBF LCTP
10-Lead (3mm
×
3mm) Plastic DFN
–40°C to 85°C
LT3480IDD#PBF LT3480IDD#TRPBF LCTP
10-Lead (3mm
×
3mm) Plastic DFN
–40°C to 125°C
LT3480EMSE#PBF LT3480EMSE#TRPBF LTCTM 10-Lead Plastic MSOP –40°C to 85°C
LT3480IMSE#PBF LT3480IMSE#TRPBF LTCTM 10-Lead Plastic MSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT3480EDD LT3480EDD#TR LCTP
10-Lead (3mm
×
3mm) Plastic DFN
–40°C to 85°C
LT3480IDD LT3480IDD#TR LCTP
10-Lead (3mm
×
3mm) Plastic DFN
–40°C to 125°C
LT3480EMSE LT3480EMSE#TR LTCTM 10-Lead Plastic MSOP –40°C to 85°C
LT3480IMSE LT3480IMSE#TR LTCTM 10-Lead Plastic MSOP –40°C to 125°C
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.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
Operating Temperature Range (Note 2)
LT3480E ............................................... –40°C to 85°C
LT3480I .............................................. –40°C to 125°C
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
(MSE Only) ....................................................... 300°C
PARAMETER CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage
l
3 3.6 V
V
IN
Overvoltage Lockout
l
36 38 40 V
The
l
denotes the specifi cations which apply over the full operating temperature
range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 10V, V
RUN/SS
= 10V, V
BOOST
= 15V, V
BD
= 3.3V unless otherwise noted. (Note 2)
ELECTRICAL CHARACTERISTICS