LTC3827 Datasheet, PDF (2/36 Pages) Linear Technology – Low IQ, Dual, 2-Phase Synchronous Step-Down Controller

LTC3827
ABSOLUTE MAXIMUM RATINGS
(Note 1)
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
PIN CONFIGURATION
TOP VIEW
32 31 30 29 28 27 26 25
SENSE1^– 1
24 BOOST1
PLLLPF 2
23 BG1
PHASMD 3
CLKOUT 4
PLLIN/MODE 5
SGND 6
RUN1 7
22 V_IN
21 PGND
33
20 EXTV_CC
19 INTV_CC
18 BG2
RUN2 8
17 BOOST2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
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 specified with wider operating temperature ranges. *The temperature grade is identified 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 specifications, go to: http://www.linear.com/tapeandreel/
3827ff
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