LTC3122_15 Datasheet, PDF (2/26 Pages) Linear Technology – 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect

LTC3122
Absolute Maximum Ratings
(Note 1)
V_IN Voltage ................................................... –0.3V to 6V
V_OUT Voltage ............................................. –0.3V to 18V
SW Voltage (Note 2)................................... –0.3V to 18V
SW Voltage (Pulsed < 100ns) (Note 2)........ –0.3V to 19V
V_C, RT Voltage ........................................... –0.3V to V_CC
CAP Voltage
V_OUT < 5.7V.............................–0.3V to (V_OUT + 0.3V)
5.7V ≤ V_OUT ≤ 11.7V...... (V_OUT – 6V) to (V_OUT + 0.3V)
V_OUT > 11.7V..................................(V_OUT – 6V) to 12V
All Other Pins................................................ –0.3V to 6V
Operating Junction Temperature Range (Notes 3, 4)
LTC3122E/LTC3122I........................... –40°C to 125°C
LTC3122H........................................... –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
MSE Lead Temperature (Soldering, 10sec)............ 300°C
Pin Configuration
TOP VIEW
SW 1
PGND 2
V_IN 3
PWM/SYNC 4
V_CC 5
RT 6
13
PGND
12 CAP
11 V_OUT
10 SGND
9 SD
8 FB
7 V_C
DE PACKAGE
12-LEAD (4mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 43°C/W (NOTE 5), θ_JC = 5°C/W
EXPOSED PAD (PIN 13) IS PGND,
MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE
TOP VIEW
SW 1
PGND 2
V_IN 3
PWM/SYNC 4
V_CC 5
RT 6
13
PGND
12 CAP
11 V_OUT
10 SGND
9 SD
8 FB
7 V_C
MSE PACKAGE
12-LEAD PLASTIC MSOP
T_JMAX = 150°C, θ_JA = 40°C/W (NOTE 5), θ_JC = 10°C/W
EXPOSED PAD (PIN 13) IS PGND,
MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3122EDE#PBF
LTC3122EDE#TRPBF
3122
12-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3122IDE#PBF
LTC3122IDE#TRPBF
3122
12-Lead (4mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3122EMSE#PBF
LTC3122EMSE#TRPBF 3122
12-Lead Plastic MSOP
–40°C to 125°C
LTC3122IMSE#PBF
LTC3122IMSE#TRPBF 3122
12-Lead Plastic MSOP
–40°C to 125°C
LTC3122HMSE#PBF
LTC3122HMSE#TRPBF 3122
12-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.
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/
3122fa
2
For more information www.linear.com/LTC3122