LTC3546 データシートの表示（PDF） - Analog Devices
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LTC3546 Datasheet PDF : 30 Pages
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LTC3546
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN1, VIN1D, VIN2, VCCA, VCCD Voltages.......... –0.3V to 6V
SYNC/MODE, SW1, SW1D, SW2A, SW2B,
RUN1, RUN2, VFB1, VFB2, PHASE, FREQ,
ITH1, ITH2, TRACK/SS1, TRACK/SS2, BMC1,
BMC2 Voltages................. –0.3V to (VIN1 or VIN2) + 0.3V
Maximum Difference Between Any of
VIN1, VIN1D, VIN2, VCCA, VCCD ...................................0.3V
PGOOD1, PGOOD2 Voltage........................... –0.3V to 6V
Operating Junction Temperature Range
(Notes 2, 6, 7)......................................... –40°C to 125°C
Storage Temperature Range.................... –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
28 27 26 25 24 23
BMC2 1
22 BMC1
TRACK/SS2 2
21 TRACK/SS1
VFB2 3
ITH2 4
VCCD 5
RUN2 6
20 VFB1
29
19 ITH1
18 PHASE
17 RUN1
VIN2 7
16 PGND2
VIN1 8
15 PGND1
9 10 11 12 13 14
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 34°C/W
EXPOSED PAD (PIN 29) IS GNDD
TOP VIEW
VCCA 1
SYNC/MODE 2
28 GNDA
27 FREQ
PGOOD2 3
26 PGOOD1
BMC2 4
25 BMC1
TRACK/SS2 5
24 TRACK/SS1
VFB2 6
23 VFB1
ITH2 7
29
22 ITH1
VCCD 8
21 PHASE
RUN2 9
20 RUN1
VIN2 10
VIN1 11
VIN1D 12
SW2A 13
19 PGND2
18 PGND1
17 PGND1D
16 SW1
SW2B 14
15 SW1D
FE PACKAGE
28-LEAD PLASTIC TSSOP
TJMAX = 125°C, θJA = 25°C/W
EXPOSED PAD (PIN 29) IS GNDD MUST BE SOLDERED TO PCB
3546fd
2
For more information www.linear.com/3546
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