LTC3811_15 Datasheet, PDF (2/48 Pages) Linear Technology – High Speed Dual, Multiphase Step-Down DC/DC Controller

LTC3811
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V_IN) ......................... –0.3V to 30V
Topside Driver Voltages
(BOOST1, BOOST2) ............................... –0.3V to 37V
Switch Voltage (SW1, SW2) ......................... –5V to 30V
BOOST1 – SW1, BOOST2 – SW2................. –0.3V to 7V
DRV_CC, INTV_CC, EXTV_CC, RUN1, RUN2, DIFF/IN⁺,
DIFF/IN^–, PHASEMODE, PGOOD1, PGOOD2,
MODE/SYNC Voltages.................................. –0.3V to 7V
FB1, FB2, RNG1, RNG2, SS/TRACK1, SS/TRACK2,
PLL/LPF, SENSE1⁺, SENSE1^–, SENSE2⁺,
SENSE2^– Voltages................................. –0.3V to INTV_CC
DRV_CC LDO RMS Output Current.........................100mA
OperatingTemperature Range (Note 2)..... –40°C to 85°C
Junction Temperature (Note 3) ............................. 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SSOP Package .................................................. 300°C
PIN CONFIGURATION
TOP VIEW
SENSE1⁺ 1
SENSE1– 2
SS/TRACK1 3
COMP1 4
FB1 5
SGND 6
INTV_CC 7
FB2 8
COMP2 9
SS/TRACK2 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 BG1
27 EXTV_CC
26 PGND
25 DRV_CC
24 V_IN
23 BG2
22 SW2
21 TG2
20 BOOST2
UHF PACKAGE
38-LEAD (5mm × 7mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°C/W
EXPOSED PAD (PIN 39) IS PGND, MUST BE SOLDERED TO PCB
PGOOD1 1
RUN1 2
RUN2 3
SENSE1⁺ 4
SENSE1^– 5
SS/TRACK1 6
COMP1 7
FB1 8
SGND 9
INTV_CC 10
FB2 11
COMP2 12
SS/TRACK2 13
SENSE2^– 14
SENSE2⁺ 15
DIFF/OUT 16
DIFF/IN^– 17
DIFF/IN⁺ 18
TOP VIEW
36 PGOOD2
35 PLL/LPF
34 MODE/SYNC
33 BOOST1
32 TG1
31 SW1
30 BG1
29 EXTV_CC
28 PGND
27 DRV_CC
26 V_IN
25 BG2
24 SW2
23 TG2
22 BOOST2
21 CLKOUT
20 RNG2
19 RNG1
G PACKAGE
36-LEAD PLASTIC SSOP WIDE
T_JMAX = 125°C, θ_JA = 100°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3811EUHF#PBF
LTC3811EUHF#TRPBF 3811
38-Lead (5mm × 7mm) Plastic QFN
LTC3811EG#PBF
LTC3811EG#TRPBF
LTC3811EG
36-Lead Plastic SSOP Wide
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
3811f
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