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LTC3731_15 Datasheet, PDF (2/34 Pages) Linear Technology – 3-Phase, 600kHz, Synchronous Buck Switching Regulator Controller | |||
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LTC3731
ABSOLUTE MAXIMUM RATINGS (Note 1)
Topside Driver Voltages (BOOSTn).............. 38V to â0.3V
Switch Voltage (SWn).................................... 32V to â5V
Boosted Driver Voltage (BOOSTn â SWn)..... 7V to â0.3V
Peak Output Current < 1ms (TGn, BGn).......................5A
Supply Voltages (VCC, VDR), PGOOD
Pin Voltage.................................................... 7V to â0.3V
RUN/SS, PLLFLTR, PLLIN, UVADJ,
FCB Voltages ...............................................VCC to â0.3V
SENSE+, SENSEâ Voltages........................ 5.5V to â0.3V
ITH Voltage ................................................ 2.4V to â0.3V
Operating Ambient Temperature Range
LTC3731C................................................. 0°C to 70°C
LTC3731I...............................................â40°C to 85°C
Junction Temperature (Note 2).............................. 125°C
Storage Temperature Range................... â65°C to 125°C
Lead Temperature G Package (Soldering, 10 sec).. 300°C
Peak Body Temperature UH Package.................... 240°C
PIN CONFIGURATION
TOP VIEW
VCC 1
PLLIN 2
PLLFLTR 3
FCB 4
IN+ 5
INâ 6
DIFFOUT 7
EAIN 8
SGND 9
SENSE1+ 10
SENSE1â 11
SENSE2+ 12
SENSE2â 13
SENSE3â 14
SENSE3+ 15
RUN/SS 16
ITH 17
UVADJ 18
36 CLKOUT
35 PGOOD
34 BOOST1
33 TG1
32 SW1
31 BOOST2
30 TG2
29 SW2
28 VDR
27 BG1
26 PGND
25 BG2
24 BG3
23 SW3
22 TG3
21 BOOST3
20 PHASMD
19 SGND2
G PACKAGE
36-LEAD PLASTIC SSOP
TJMAX = 125°C, θJA = 95°C/W, θJC = 32°C/W
TOP VIEW
32 31 30 29 28 27 26 25
INâ 1
24 BOOST2
DIFFOUT 2
23 TG2
EAIN 3
SENSE1+ 4
SENSE1â 5
SENSE2+ 6
SENSE2â 7
SENSE3â 8
33
SGND
22 SW2
21 VCC
20 BG1
19 PGND
18 BG2
17 BG3
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm à 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
3731fc
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