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LTC3631 Datasheet, PDF (2/22 Pages) Linear Technology – High Effi ciency, High Voltage 100mA Synchronous Step-Down Converter
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LTC3631
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN Supply Voltage..................................... –0.3V to 60V
SW Voltage (DC)........................... –0.3V to (VIN + 0.3V)
RUN Voltage .............................................. –0.3V to 60V
HYST, ISET, SS Voltages ............................... –0.3V to 6V
VFB ............................................................... –0.3V to 6V
VOUT (Fixed Output Versions)....................... –0.3V to 6V
Operating Junction Temperature Range
(Note 2).................................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
MS8E ................................................................ 300°C
PIN CONFIGURATION
TOP VIEW
SW 1
8 GND
VIN 2
9
7 HYST
ISET 3
GND
6 VOUT/VFB
SS 4
5 RUN
MS8E PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 40°C/W, θJC = 5°-10°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
SW 1
8 GND
VIN 2
9
7 HYST
ISET 3
GND
6 VOUT/VFB
SS 4
5 RUN
DD PACKAGE
8-LEAD (3mm s 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 43°C/W, θJC = 3°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
LTC3631EMS8E#PBF
LTC3631EMS8E#TRPBF LTFDT
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631EMS8E-3.3#PBF LTC3631EMS8E-3.3#TRPBF LTFFP
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631EMS8E-5#PBF
LTC3631EMS8E-5#TRPBF LTFFR
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631IMS8E#PBF
LTC3631IMS8E#TRPBF
LTFDT
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631IMS8E-3.3#PBF
LTC3631IMS8E-3.3#TRPBF LTFFP
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631IMS8E-5#PBF
LTC3631IMS8E-5#TRPBF LTFFR
8-Lead Plastic MSOP
–40°C to 125°C
LTC3631EDD#PBF
LTC3631EDD#TRPBF
LFDV
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3631EDD-3.3#PBF
LTC3631EDD-3.3#TRPBF LFFN
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3631EDD-5#PBF
LTC3631EDD-5#TRPBF
LFFQ
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3631IDD#PBF
LTC3631IDD#TRPBF
LFDV
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3631IDD-3.3#PBF
LTC3631IDD-3.3#TRPBF LFFN
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3631IDD-5#PBF
LTC3631IDD-5#TRPBF
LFFQ
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°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/
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