
LTC3615/LTC3615-1
2
3615fa
ABSOLUTE MAXIMUM RATINGS
PVIN1, PVIN2 Voltages.....................–0.3V to SVIN + 0.3V
SVIN Voltage................................................. –0.3V to 6V
SW1 Voltage .............................–0.3V to (PVIN1 + 0.3V)
SW2 Voltage ..............................–0.3V to (PVIN2 + 0.3V)
PGOOD1, PGOOD2 Voltages ........................ –0.3V to 6V
All Other Pins .............................. –0.3V to (SVIN + 0.3V)
(Notes 1, 11)
1
2
3
4
5
6
7
8
9
10
11
12
TOP VIEW
FE PACKAGE
24-LEAD PLASTIC eTSSOP
24
23
22
21
20
19
18
17
16
15
14
13
PHASE
FB2
ITH2
TRACK/SS2
SGND
PVIN2
SW2
RUN2
RUN1
RT/SYNC
MODE
FB1
ITH1
TRACK/SS1
SVIN
PVIN1
SW1
PGOOD1
SRLIM
PGOOD2
25
PGND
TJMAX = 125°C, θJA = 33°C/W
EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
24 23 22 21 20 19
7
8
9
TOP VIEW
UF PACKAGE
24-LEAD (4mm
4mm) PLASTIC QFN
10 11 12
6
5
4
3
2
1
13
14
15
16
17
18
ITH1
FB1
MODE
PHASE
FB2
ITH2
PGOOD1
SRLIM
PGOOD2
RT/SYNC
RUN1
RUN2
TRACK/SS1
SV
IN
PV
IN1
PV
IN1
SW1
TRACK/SS2
SGND
PV
IN2
PV
IN2
SW2
25
PGND
TJMAX = 125°C, θJA = 37°C/W
EXPOSED PAD (PIN 25) IS PGND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3615EFE#PBF
LTC3615EFE#TRPBF
LTC3615FE
24-Lead Plastic eTSSOP
–40°C to 125°C
LTC3615IFE#PBF
LTC3615IFE#TRPBF
LTC3615FE
24-Lead Plastic eTSSOP
–40°C to 125°C
LTC3615EUF#PBF
LTC3615EUF#TRPBF
3615
24-Lead (4mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3615IUF#PBF
LTC3615IUF#TRPBF
3615
24-Lead (4mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3615EFE-1#PBF
LTC3615EFE-1#TRPBF
LTC3615FE-1
24-Lead Plastic eTSSOP
–40°C to 125°C
LTC3615IFE-1#PBF
LTC3615IFE-1#TRPBF
LTC3615FE-1
24-Lead Plastic eTSSOP
–40°C to 125°C
LTC3615EUF-1#PBF
LTC3615EUF-1#TRPBF
36151
24-Lead (4mm × 4mm) Plastic QFN
–40°C to 125°C
LTC3615IUF-1#PBF
LTC3615IUF-1#TRPBF
36151
24-Lead (4mm × 4mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
Operating Junction Temperature
Range (Note 2)....................................... –40°C to 125°C
Storage Temperature.............................. –65°C to 150°C
Lead Soldering Temperature (eTSSOP)................. 300°C
Reow Peak Body Temperature (QFN) .................. 260°C