English
Language : 

LTC3642 Datasheet, PDF (2/20 Pages) Linear Technology – High Effi ciency, High Voltage 50mA Synchronous Step-Down Converter
◁
LTC3642
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
VFB/VOUT, HYST, ISET, SS Voltages ................ –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
ISET 3
9
7 HYST
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
7 HYST
9
ISET 3
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
LTC3642EMS8E#PBF
LTC3642EMS8E#TRPBF
LTDTH
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642EMS8E-3.3#PBF
LTC3642EMS8E-3.3#TRPBF LTDYN
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642EMS8E-5#PBF
LTC3642EMS8E-5#TRPBF
LTDYQ
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642IMS8E#PBF
LTC3642IMS8E#TRPBF
LTDTH
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642IMS8E-3.3E#PBF
LTC3642IMS8E-3.3#TRPBF
LTDYN
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642IMS8E-5#PBF
LTC3642IMS8E-5#TRPBF
LTDYQ
8-Lead Plastic MSOP
–40°C to 125°C
LTC3642EDD#PBF
LTC3642EDD#TRPBF
LDTJ
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3642EDD-3.3#PBF
LTC3642EDD-3.3#TRPBF
LDYM
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3642EDD-5#PBF
LTC3642EDD-5#TRPBF
LDYP
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3642IDD#PBF
LTC3642IDD#TRPBF
LDTJ
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3642IDD-3.3#PBF
LTC3642IDD-3.3#TRPBF
LDYM
8-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3642IDD-5#PBF
LTC3642IDD-5#TRPBF
LDYP
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/
3642f
2
 ▷