LTC3646-1_15 Datasheet, PDF (2/28 Pages) Linear Technology – 40V, 1A Synchronous Step-Down Converter

LTC3646/LTC3646-1
ABSOLUTE MAXIMUM RATINGS (Notes 1, 7)
PVIN, SVIN Supply Voltage......................... –0.3V to 45V
SW Voltage (DC)............................ –0.3V to PVIN + 0.3V
BOOST – SW Voltage.................................... –0.3V to 6V
V_ON Voltage................................................. –0.3V to 33V
MODE/SYNC, RT, ITH,
V_FB Voltage.................................–0.3V to INTV_CC + 0.3V
INTV_CC Voltage............................................. –0.3V to 6V
EXTV_CC Voltage............................................ –0.3V to 6V
RUN Voltage............................................... –0.3V to 45V
PGOOD........................................–0.3V to INTV_CC + 0.3V
Operating Junction Temperature Range
(Notes 2, 7)............................................. –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) MSE........... 300°C
PIN CONFIGURATION
TOP VIEW
SGND 1
V_FB 2
ITH 3
RT 4
V_ON 5
PGOOD 6
MODE/SYNC 7
15
PGND
14 SVIN
13 RUN
12 EXTV_CC
11 INTV_CC
10 BOOST
9 SW
8 PVIN
DE PACKAGE
14-LEAD (4mm × 3mm) PLASTIC DFN
T_JMAX = 150°C, θ_JA = 43°C/W
EXPOSED PAD (PIN 15) IS PGND, MUST BE SOLDERED TO PCB
SGND 1
V_FB 2
ITH 3
RT 4
V_ON 5
PGOOD 6
MODE/SYNC 7
NC 8
TOP VIEW
17
PGND
16 SVIN
15 RUN
14 EXTV_CC
13 INTV_CC
12 BOOST
11 SW
10 PVIN
9 PVIN
MSE PACKAGE
16-LEAD PLASTIC MSOP
T_JMAX = 150°C, θ_JA = 38°C/W
EXPOSED PAD (PIN 17) IS PGND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3646EDE#PBF
LTC3646EDE#TRPBF
3646
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3646IDE#PBF
LTC3646IDE#TRPBF
3646
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3646HDE#PBF
LTC3646HDE#TRPBF 3646
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 150°C
LTC3646EMSE#PBF
LTC3646EMSE#TRPBF 3646
16-Lead Plastic MSOP
–40°C to 85°C
LTC3646IMSE#PBF
LTC3646IMSE#TRPBF 3646
16-Lead Plastic MSOP
–40°C to 125°C
LTC3646HMSE#PBF
LTC3646HMSE#TRPBF 3646
16-Lead Plastic MSOP
–40°C to 150°C
LTC3646EDE-1#PBF
LTC3646EDE-1#TRPBF 36461
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°C
LTC3646IDE-1#PBF
LTC3646IDE-1#TRPBF 36461
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3646HDE-1#PBF
LTC3646HDE-1#TRPBF 36461
14-Lead (4mm × 3mm) Plastic DFN
–40°C to 150°C
LTC3646EMSE-1#PBF LTC3646EMSE-1#TRPBF 36461
16-Lead Plastic MSOP
–40°C to 85°C
LTC3646IMSE-1#PBF
LTC3646IMSE-1#TRPBF 36461
16-Lead Plastic MSOP
–40°C to 125°C
LTC3646HMSE-1#PBF LTC3646HMSE-1#TRPBF 36461
16-Lead Plastic MSOP
–40°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified 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 specifications, go to: http://www.linear.com/tapeandreel/
36461fb
2
For more information www.linear.com/LTC3646