LTC3865-1_15 Datasheet, PDF (2/38 Pages) Linear Technology – Dual, 2-Phase Synchronous DC/DC Controller with Pin Selectable Outputs

LTC3865/LTC3865-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (V_IN) ......................... –0.3V to 40V
Topside Driver Voltages
BOOST1, BOOST2.................................. –0.3V to 46V
Switch Voltage (SW1, SW2) ......................... –5V to 40V
INTV_CC, RUN1, RUN2, PGOOD(s), EXTV_CC,
(BOOST1-SW1), (BOOST2-SW2)................. –0.3V to 6V
SENSE1⁺, SENSE2⁺, SENSE1^–, SENSE2^–
V_OSENSE1, V_OSENSE2 Voltages .................... –0.3V to 5.8V
MODE/PLLIN, I_LIM, TK/SS1, TK/SS2, VID11,
VID12, VID21, VID22, FREQ Voltages ... –0.3V to INTV_CC
I_TH1, I_TH2 Voltages.................................... –0.3V to 2.7V
INTV_CC DC Output Current (Note 9) .......................80mA
Operating Junction Temperature Range (Notes 2, 3)
LTC3865/LTC3865-1 .......................... –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
FE Package ....................................................... 300°C
PIN CONFIGURATION
LTC3865
TOP VIEW
32 31 30 29 28 27 26 25
V_OSENSE1 1
TK/SS1 2
24 BOOST1
23 BG1
I_TH1 3
VID11 4
VID12 5
I_TH2 6
TK/SS2 7
33
SGND
22 V_IN
21 INTV_CC
20 EXTV_CC
19 BG2
18 PGND
V_OSENSE2 8
17 BOOST2
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm s 5mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 34°C/W, θ_JC = 3°C/W
EXPOSED PAD (PIN 33) IS SGND, MUST BE SOLDERED TO PCB
LTC3865
TOP VIEW
RUN1 1
SENSE1⁺ 2
SENSE^– 3
NC 4
V_OSENSE1 5
TK/SS1 6
I_TH1 7
SGND 8
VID11 9
VID12 10
I_TH2 11
TK/SS2 12
V_OSENSE2 13
NC 14
SENSE2^– 15
SENSE2⁺ 16
RUN2 17
VID21 18
I_LIM 19
39
SGND
38 FREQ
37 VID22
36 MODE/PLLIN
35 SW1
34 TG1
33 BOOST1
32 PGND1
31 BG1
30 V_IN
29 INTV_CC
28 EXTV_CC
27 BG2
26 PGND2
25 BOOST2
24 NC
23 TG2
22 SW2
21 PGOOD1
20 PGOOD2
FE PACKAGE
38-LEAD PLASTIC TSSOP
T_JMAX = 125°C, θ_JA = 25°C/W
EXPOSED PAD (PIN 39) IS SGND, MUST BE SOLDERED TO PCB
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