LTC3890
absoluTe MaxiMuM raTings
pin conFiguraTion
(Note 1)
TOP VIEW
Input Supply Voltage (V )......................... –0.3V to 65V
IN
Topside Driver Voltages
BOOST1, BOOST2 .................................–0.3V to 71V
Switch Voltage (SW1, SW2) ......................... –5V to 65V
(BOOST1-SW1), (BOOST2-SW2) ................ –0.3V to 6V
RUN1, RUN2 ............................................... –0.3V to 8V
Maximum Current Sourced into Pin from
32 31 30 29 28 27 26 25
–
SENSE1
FREQ
1
2
3
4
5
6
7
8
24 BOOST1
23 BG1
PHASMD
CLKOUT
PLLIN/MODE
SGND
V
IN
22
21
PGND
33
SGND
Source > 8V .....................................................100µA
20 EXTV
CC
CC
+
–
+
–
SENSE1 , SENSE2 , SENSE1
INTV
19
18 BG2
17 BOOST2
SENSE2 Voltages ..................................... –0.3V to 28V
RUN1
PLLIN/MODE Voltage................................... –0.3V to 6V
RUN2
9
10 11 12 13 14 15 16
FREQ Voltage........................................–0.3V to INTV
CC
CC
I
, PHASMD Voltages .......................–0.3V to INTV
LIM
EXTV ..................................................... –0.3V to 14V
CC
ITH1, ITH2, V , V Voltages................... –0.3V to 6V
FB1 FB2
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
PGOOD1, PGOOD2 Voltages ....................... –0.3V to 6V
TRACK/SS1, TRACK/SS2 Voltages ............. –0.3V to 6V
Operating Junction Temperature Range (Notes 2, 3)
LTC3890E, LTC3890I......................... –40°C to 125°C
LTC3890H.......................................... –40°C to 150°C
LTC3890MP....................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
T
JMAX
= 150°C, θ = 34°C/W
JA
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH
LTC3890EUH#PBF
LTC3890IUH#PBF
LTC3890HUH#PBF
LTC3890MPUH#PBF
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3890EUH#TRPBF
LTC3890IUH#TRPBF
LTC3890HUH#TRPBF
LTC3890MPUH#TRPBF
3890
3890
3890
3890
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–55°C to 150°C
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
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/
elecTrical characTerisTics The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VRUN1,2 = 5V, EXTVCC = 0V unless otherwise noted.
(Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
V
Input Supply Operating Voltage Range
Regulated Feedback Voltage
4
60
V
IN
(Note 4) I
Voltage = 1.2V
TH1,2
FB1,2
–40°C to 85°C, All Grades
LTC3890E, LTC3890I
0.792
0.788
0.786
0.800
0.800
0.800
0.808
0.812
0.812
V
V
V
l
l
LTC3890H, LTC3890MP
3890fb
2
Linear Systems [ Linear Systems ]
