ltc3853euj Linear Technology Corporation, ltc3853euj Datasheet - Page 2

• Manufacturer Part Number: ltc3853euj
• Description: Triple Output, Multiphase Synchronous Step-down Controller
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LTC3853
(Note 1)
Input Supply Voltage (V
Topside Driver Voltages
Switch Voltage (SW1, SW2, SW3) ................ 28V to –5V
INTV
DRV
(BOOST2-SW2), (BOOST3-SW3) ................. 6V to –0.3V
SENSE1
SENSE2
SENSE3
V
MODE/PLLIN, I
TK/SS2, TK/SS3 Voltages ..................... INTV
I
INTV
Operating Temperature Range (Note 2)
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range ................... –65°C to 125°C
LEAD FREE FINISH
LTC3853EUJ#PBF
LTC3853IUJ#PBF
LEAD BASED FINISH
LTC3853EUJ
LTC3853IUJ
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
ORDER INFORMATION
TH1
FB2
BOOST1, BOOST2, BOOST3 .................. 34V to –0.3V
LTC3853E ............................................. –40°C to 85°C
LTC3853I............................................ –40°C to 125°C
, I
CC12
........................................................ 300μA Max I
CC
CC
TH2
, RUN1, RUN2, RUN3, PGOOD12, PGOOD3,
Peak Output Current ................................150mA
+
–
+
, EXTV
, SENSE2
, SENSE3
, I
Voltages ..................................... 5.7V to –0.3V
TH3
, V
CC
LIM
FB1
, (BOOST1-SW1),
,TK/SS1,
+
–
, SENSE1
.................................... 14V to –0.3V
, V
TAPE AND REEL
LTC3853EUJ#TRPBF
LTC3853IUJ#TRPBF
TAPE AND REEL
LTC3853EUJ#TR
LTC3853IUJ#TR
FB3
IN
) ......................... 28V to –0.3V
Voltages ...... INTV
–
,
http://www.linear.com/leadfree/
PART MARKING*
LTC3853
LTC3853
PART MARKING*
LTC3853
LTC3853
CC
CC
http://www.linear.com/tapeandreel/
to –0.3V
to –0.3V
FB2
PIN CONFIGURATION
PACKAGE DESCRIPTION
40-Lead (6mm × 6mm) Plastic QFN
40-Lead (6mm × 6mm) Plastic QFN
PACKAGE DESCRIPTION
40-Lead (6mm × 6mm) Plastic QFN
40-Lead (6mm × 6mm) Plastic QFN
TK/SS2
TK/SS3
SNSN1
SNSN2
SNSN3
SNSP1
SNSP2
SNSP3
V
I
TH1
FB1
EXPOSED PAD (PIN 41) IS PGND, MUST BE SOLDERED TO PCB
10
1
2
3
4
5
6
7
8
9
40
11
39
12 13 14 15
40-LEAD (6mm × 6mm) PLASTIC QFN
38 37 36 35 34 33 32 31
T
JMAX
= 125°C, θ
TOP VIEW
UJ PACKAGE
41
16 17 18 19
JA
= 33°C/W
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
20
30
29
28
27
26
25
24
23
22
21
BG1
DRV
BG2
SW2
TG2
BOOST2
V
EXTV
INTV
BG3
IN
CC12
CC
CC
3853f