LTC3780
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V
IN
) ........................ –0.3V to 36V
Topside Driver Voltages
(BOOST1, BOOST2) .................................. –0.3V to 42V
Switch Voltage (SW1, SW2) ........................ –5V to 36V
INTV
CC
, EXTV
CC
, (BOOST – SW1),
(BOOST2 – SW2), PGOOD .......................... –0.3V to 7V
RUN, SS ....................................................... –0.3V to 6V
PLLIN Voltage .......................................... –0.3V to 5.5V
PLLFLTR Voltage ....................................... –0.3V to 2.7V
FCB, STBYMD Voltages........................ –0.3V to INTV
CC
I
TH
, V
OSENSE
Voltages .............................. –0.3V to 2.4V
Peak Output Current <10μs (TG1, TG2, BG1, BG2) .....3A
INTV
CC
Peak Output Current ................................. 40mA
Operating Junction Temperature Range (Notes 5, 2, 7)
LTC3780E............................................. –40°C to 85°C
LTC3780I............................................ –40°C to 125°C
LTC3780MP ....................................... –55°C to 125°C
Junction Temperature (Note 2) ............................ 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)
SSOP Only ........................................................ 300°C
PIN CONFIGURATION
TOP VIEW
PGOOD
TOP VIEW
NC
PGOOD
SS
SENSE
+
SENSE
–
I
TH
V
OSENSE
SGND
RUN
FCB
1
2
3
4
5
6
7
8
9
24 BOOST1
23 TG1
22 SW1
21 V
IN
20 EXTV
CC
19 INTV
CC
18 BG1
17 PGND
16 BG2
15 SW2
14 TG2
13 BOOST2
SENSE
+
1
SENSE
–
2
SS
BOOST1
TG1
TG2
NC
NC
NC
24 SW1
23 V
IN
22 EXTV
CC
33
21 INTV
CC
20 BG1
19 PGND
18 BG2
17 SW2
9 10 11 12 13 14 15 16
NC
NC
PLLIN
STBYMD
NC
BOOST2
NC
32 31 30 29 28 27 26 25
I
TH
3
V
OSENSE
4
SGND 5
RUN 6
FCB 7
PLLFTR 8
PLLFLTR 10
PLLIN 11
STBYMD 12
G PACKAGE
24-LEAD PLASTIC SSOP
T
JMAX
= 125°C,
θ
JA
= 130°C/W
UH PACKAGE
32-LEAD (5mm 5mm) PLASTIC QFN
T
JMAX
= 125°C,
θ
JA
= 34°C/W
EXPOSED PAD (PIN 33) IS GND, MUST BE SOLDERED TO PCB
3780fe
2
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
