LTC3773 Datasheet, PDF (2/32 Pages) Linear Technology – Triple Output Synchronous 3-Phase DC/DC Controller with Up/Down Tracking

LTC3773
ABSOLUTE MAXIMUM RATINGS (Note 1)
Topside Driver Voltage (BOOSTn) .............. 42V to –0.3V
Switch Voltage (SWn)................................... 36V to –1V
Boosted Driver Voltage (BOOSTn – SWn).... 7V to –0.3V
Supply Voltages (V_CC, V_DR).......................... 7V to –0.3V
PGOOD, PHASEMD, PLLFLTR, PLLIN/FC, SDBn,
TRACKn, V_FBn ...............................(V_CC + 0.3V) to –0.3V
SENSE⁺n, SENSE^–n ........................ (1.1 • V_CC) to –0.3V
I_THn Voltage............................................... 2.7V to –0.3V
Extended Commercial Operating
Temperature Range (Note 2)................–40°C to 85°C
Junction Temperature (Note 2) ............................. 125°C
Storage Temperature Range...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
G Package......................................................... 300°C
Peak Body Temperature UHF Package................... 240°C
PIN CONFIGURATIONS
SENSE1⁺ 1
SENSE1^– 2
SDB 3
TRACK1 4
V_FB1 5
I_TH1 6
SGND 7
I_TH2 8
I_TH3 9
V_FB2 10
V_FB3 11
TRACK2 12
TRACK3 13
SENSE2 ^– 14
SENSE2⁺ 15
SENSE3 ^– 16
SENSE3+ 17
V_CC 18
TOP VIEW
36 PHASEMD
35 PGOOD
34 BOOST1
33 TG1
32 SW1
31 SW2
30 TG2
29 BOOST2
28 BOOST3
27 TG3
26 SW3
25 BG1
24 BG2
23 V_DR
22 PGND
21 BG3
20 PLLIN/FC
19 PLLFLTR
G PACKAGE
36-LEAD PLASTIC SSOP
T_JMAX = 125°C, θ_JA = 95°C/W
TOP VIEW
TRACK1 1
V_FB1 2
I_TH1 3
SGND 4
I_TH2 5
I_TH3 6
V_FB2 7
V_FB3 8
TRACK2 9
TRACK3 10
SENSE2^– 11
SENSE2⁺ 12
38 37 36 35 34 33 32
39
13 14 15 16 17 18 19
31 BOOST1
30 TG1
29 SW1
28 SW2
27 TG2
26 BOOST2
25 BOOST3
24 TG3
23 SW3
22 BG1
21 BG2
20 V_DR
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
EXPOSED PAD IS PGND (PIN 39),
MUST BE SOLDERED TO PCB
T_JMAX = 125°C, θ_JA = 34°C/W
ORDERING INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3773EG#PBF
LTC3773EG#TRPBF
36-Lead Plastic SSOP
LTC3773EUHF#PBF
LTC3773EUHF#TRPBF 3773E
38-Lead (5mm x 7mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
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