Datasheet

LTC3827
2
3827ff
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage (V
IN
) .........................36V to –0.3V
Topside Driver Voltages
BOOST1, BOOST2 .................................. 42V to –0.3V
Switch Voltage (SW1, SW2) ......................... 36V to –5V
BOOST1-SW1, BOOST2-SW2 .................. 8.5V to –0.3V
RUN1, RUN2 ............................................... 7V to –0.3V
SENSE1
+
, SENSE2
+
, SENSE1
–
,
SENSE2
–
Voltages .................................... 11V to –0.3V
PLLIN/MODE, PLLLPF, Voltages ........... INTV
CC
to –0.3V
PHASMD, FOLDDIS, TRACK/SS1, TRACK/SS2
Voltages ............................................... INTV
CC
to –0.3V
EXTV
CC
...................................................... 10V to –0.3V
I
TH1,
I
TH2
, V
FB1
, V
FB2
Voltages .................. 2.7V to –0.3V
PGOOD1, PGOOD2 Voltages ..................... 8.5V to –0.3V
Peak Output Current <10µs (TG1, TG2, BG1, BG2) .....3A
INTV
CC
Peak Output Current ................................. 50mA
Operating Temperature Range (Note 2).... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range .................. –65°C to 125°C
(Note 1)
32 31 30 29 28 27 26 25
9 10 11 12 13 14 15 16
17
18
19
20
21
22
23
24
8
7
6
5
4
3
2
1
TOP VIEW
SENSE1
–
PLLLPF
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN1
RUN2
BOOST1
BG1
V
IN
PGND
EXTV
CC
INTV
CC
BG2
BOOST2
SENSE1
+
V
FB1
I
TH1
TRACK/SS1 PGOOD2 PGOOD1 TG1 SW1
SENSE2
–
SENSE2
+
V
FB2
I
TH2
TRACK/SS2
FOLDDIS
TG2
SW2
UH PACKAGE
32-LEAD
(
5mm × 5mm
)
PLASTIC QFN
33
T
JMAX
= 125°C, θ
JA
= 34°C/W
EXPOSED PAD (PIN 33) IS SGND
MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3827EUH#PBF LTC3827EUH#TRPBF 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
LTC3827IUH#PBF LTC3827IUH#TRPBF 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3827EUH LTC3827EUH#TR 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
LTC3827IUH LTC3827IUH#TR 3827 32-Lead (5mm × 5mm) Plastic QFN –40°C to 85°C
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:
http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to:
http://www.linear.com/tapeandreel/