LTC1871-1 LINER [Linear Technology], LTC1871-1 Datasheet - Page 2

• Manufacturer Part Number: LTC1871-1
• Description: High Effi ciency, Synchronous, 4-Switch Buck-Boost Controller
• Manufacturer: LINER [Linear Technology]

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