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LTC3890EUHPBF Datasheet(PDF) 2 Page - Linear Technology

Part # LTC3890EUHPBF
Description  60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
Download  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3890EUHPBF Datasheet(HTML) 2 Page - Linear Technology

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LTC3890
2
3890f
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
(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
FREQ
PHASMD
CLKOUT
PLLIN/MODE
SGND
RUN1
RUN2
BOOST1
BG1
VIN
PGND
EXTVCC
INTVCC
BG2
BOOST2
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
33
SGND
TJMAX = 125°C, θJA = 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
LTC3890EUH#PBF
LTC3890EUH#TRPBF
3890
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
LTC3890IUH#PBF
LTC3890IUH#TRPBF
3890
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°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/
Input Supply Voltage (VIN)......................... –0.3V to 65V
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
Source > 8V .....................................................100μA
SENSE1+, SENSE2+, SENSE1
SENSE2Voltages...................................... –0.3V to 28V
PLLIN/MODE, FREQ Voltages .............. –0.3V to INTVCC
ILIM, PHASMD Voltages ....................... –0.3V to INTVCC
EXTVCC ...................................................... –0.3V to 14V
ITH1, ITH2, VFB1, VFB2 Voltages................... –0.3V to 6V
PGOOD1, PGOOD2 Voltages ....................... –0.3V to 6V
TRACK/SS1, TRACK/SS2 Voltages .............. –0.3V to 6V
Operating Junction Temperature Range
(Note 2) ................................................. –40°C to 125°C
Maximum Junction Temperature (Note 3) ............ 125°C
Storage Temperature Range................... –65°C to 150°C
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VIN
Input Supply Operating Voltage Range
4
60
V
VFB1,2
Regulated Feedback Voltage
(Note 4) ITH1,2 Voltage = 1.2V
–40°C to 125°C
–40°C to 85°C
l
0.788
0.792
0.800
0.800
0.812
0.808
V
V
V
IFB1,2
Feedback Current
(Note 4)
±5
±50
nA
VREFLNREG
Reference Voltage Line Regulation
(Note 4) VIN = 4.5V to 60V
0.002
0.02
%/V
The
l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at TJ = 25°C. VIN = 12V, VRUN1,2 = 5V, EXTVCC = 0V unless otherwise noted.


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