LTC3612_15 Datasheet, PDF (2/30 Pages) Linear Technology – 3A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

LTC3612
Absolute Maximum Ratings (Note 1)
PV_IN, SV_IN, PV_{IN_DRV} Voltages...................... –0.3V to 6V
SW Voltage...................................–0.3V to (PV_IN + 0.3V)
ITH, RT/SYNC Voltages................ –0.3V to (SV_IN + 0.3V)
DDR, TRACK/SS Voltages............ –0.3V to (SV_IN + 0.3V)
MODE, RUN, V_FB Voltages........... –0.3V to (SV_IN + 0.3V)
PGOOD Voltage............................................. –0.3V to 6V
Operating Junction Temperature Range
(Notes 2, 11)........................................... –55°C to 150°C
Storage Temperature............................... –65°C to 150°C
Reflow Peak Body Temperature (QFN)................... 260°C
Lead Temperature (Soldering, 10 sec)
TSSOP............................................................... 300°C
Pin Configuration
TOP VIEW
DDR 1
RT/SYNC 2
SGND 3
NC 4
SW 5
SW 6
20 19 18 17
16 PGOOD
15 RUN
21
14 SV_IN
13 PV_{IN_DRV}
12 SW
11 SW
7 8 9 10
UDC PACKAGE
20-LEAD (3mm × 4mm) PLASTIC QFN
T_JMAX = 150°C, θ_JA = 43°C/W
EXPOSED PAD (PIN 21) IS PGND, MUST BE SOLDERED TO PCB
TOP VIEW
SV_IN 1
RUN 2
20 PV_{IN_DRV}
19 SW
PGOOD 3
18 NC
MODE 4
17 SW
V_FB 5
ITH 6
TRACK/SS 7
21
16 PV_IN
15 PV_IN
14 SW
DDR 8
13 NC
RT/SYNC 9
12 SW
SGND 10
11 NC
FE PACKAGE
20-LEAD PLASTIC TSSOP
T_JMAX = 150°C, θ_JA = 38°C/W
EXPOSED PAD (PIN 21) IS PGND, MUST BE SOLDERED TO PCB
order information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3612EUDC#PBF
LTC3612EUDC#TRPBF LDQT
20-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C
LTC3612IUDC#PBF
LTC3612IUDC#TRPBF LDQT
20-Lead (3mm × 4mm) Plastic QFN –40°C to 125°C
LTC3612HUDC#PBF
LTC3612HUDC#TRPBF LDQT
20-Lead (3mm × 4mm) Plastic QFN –40°C to 150°C
LTC3612MPUDC#PBF
LTC3612MPUDC#TRPBF LDQT
20-Lead (3mm × 4mm) Plastic QFN –55°C to 150°C
LTC3612EFE#PBF
LTC3612EFE#TRPBF
LTC3612FE
20-Lead Plastic TSSOP
–40°C to 125°C
LTC3612IFE#PBF
LTC3612IFE#TRPBF
LTC3612FE
20-Lead Plastic TSSOP
–40°C to 125°C
LTC3612HFE#PBF
LTC3612HFE#TRPBF
LTC3612FE
20-Lead Plastic TSSOP
–40°C to 150°C
LTC3612MPFE#PBF
LTC3612MPFE#TRPBF LTC3612FE
20-Lead Plastic TSSOP
–55°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.
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/
3612fc
2
For more information www.linear.com/LTC3612