LTC3118_15 Datasheet, PDF (2/38 Pages) Linear Technology – 18V, 2A Buck-Boost DC/DC Converter with Low-Loss Dual Input PowerPath

LTC3118
Absolute Maximum Ratings (Note 1)
V_IN1, V_IN2 Voltage........................................ –0.3V to 20V
V_OUT Voltage............................................... –0.3V to 20V
SW1 DC Voltage (Note 4)................–0.3V to (V_IN1 + 0.3V)
or (V_IN2 + 0.3V)
SW2 DC Voltage (Note 4).............–0.3V to (V_OUT + 0.3V)
BST1 Voltage...................... (SW1 – 0.3V) to (SW1 + 6V)
BST2 Voltage .....................(SW2 – 0.3V) to (SW2 + 6V)
RUN1, RUN2 Voltage................................... –0.3V to 20V
PGD, V1GD, V2GD Voltage.......................... –0.3V to 20V
CM1, CM2 Voltage........................................ –0.3 to 20V
CP1 Voltage......................... (V_IN1 – 0.3V) to (V_IN1 + 6V)
CP2 Voltage......................... (V_IN2 – 0.3V) to (V_IN2 + 6V)
V_CC, CN1, CN2 Voltage.................................... –0.3 to 6V
MODE, SEL, FB, VC Voltage............................ –0.3 to 6V
Operating Junction Temperature Range (Notes 2, 3)
LTC3118E/LTC3118I............................ –40°C to 125°C
LTC3118H........................................... –40°C to 150°C
LTC3118MP......................................... –55°C to 150°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) TSSOP....... 300°C
Pin Configuration
TOP VIEW
SEL 1
V_IN1 2
RUN1 3
RUN2 4
V_CC 5
MODE 6
GND 7
24 23 22 21 20
19 CP2
25
PGND
18 V_IN2
17 SW1
16 BST1
15 BST2
14 SW2
13 V_OUT
8 9 10 11 12
UFD PACKAGE
24-LEAD (4mm × 5mm) PLASTIC QFN
T_JMAX = 150°C, θ_JC = 3.4°C/W, θ_JA = 43°C/W
EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
TOP VIEW
CM1 1
CN1 2
CP1 3
SEL 4
V_IN1 5
RUN1 6
RUN2 7
V_CC 8
MODE 9
GND 10
GND 11
VC 12
FB 13
V1GD 14
29
PGND
28 CM2
27 CN2
26 PGND
25 CP2
24 V_IN2
23 SW1
22 BST1
21 BST2
20 SW2
19 V_OUT
18 PGND
17 PGND
16 PGD
15 V2GD
FE PACKAGE
28-LEAD PLASTIC TSSOP
T_JMAX = 150°C, θ_JC = 5°C/W, θ_JA = 30°C/W
EXPOSED PAD (PIN 29) IS PGND, MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3118EUFD#PBF
LTC3118EUFD#TRPBF 3118
24-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3118IUFD#PBF
LTC3118IUFD#TRPBF 3118
24-Lead (4mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3118HUFD#PBF
LTC3118HUFD#TRPBF 3118
24-Lead (4mm × 5mm) Plastic QFN
–40°C to 150°C
LTC3118MPUFD#PBF
LTC3118MPUFD#TRPBF 3118
24-Lead (4mm × 5mm) Plastic QFN
–55°C to 150°C
LTC3118EFE#PBF
LTC3118EFE#TRPBF
3118FE
28-Lead Plastic TSSOP
–40°C to 125°C
LTC3118IFE#PBF
LTC3118IFE#TRPBF
3118FE
28-Lead Plastic TSSOP
–40°C to 125°C
LTC3118HFE#PBF
LTC3118HFE#TRPBF
3118FE
28-Lead Plastic TSSOP
–40°C to 150°C
LTC3118MPFE#PBF
LTC3118MPFE#TRPBF 3118FE
28-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.
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/
3118f
2
For more information www.linear.com/LTC3118