Datasheet
LTC3780
30
Rev G
For more information www.analog.com
ANALOG DEVICES, INC. 2005 to 2019
02/19
www.analog.com
RELATED PARTS
TYPICAL APPLICATION
LTC3780
D
A
BO540W
D
B
BO540W
C
F
0.1µF
C
OUT
330µF
16V
V
OUT
12V
5A
V
IN
5V TO 32V
C
C1
0.01µF
C
C2
47pF
C
SS
0.022µF
C
IN
22µF
35V
3780 TA02
C
A
0.22µF
V
PULLUP
C
B
0.22µF
B
Si7884DP
C
Si7884DP
D
Si7884DP
L
4.7µH
D1
B340A
D2
B320A
A
Si7884DP
C
VCC
4.7µF
9mΩ
10Ω
PGOOD
SS
SENSE
+
SENSE
–
I
TH
V
OSENSE
BOOST1
TG1
SW1
V
IN
EXTV
CC
INTV
CC
1
2
3
4
5
6
24
23
22
21
20
19
SGND
RUN
FCB
PLLFLTR
BG1
PGND
BG2
SW2
PLLIN
STBYMD
TG2
BOOST2
7
8
9
10
18
17
16
15
11
12
14
13
100Ω
100Ω
R1
8.06k, 1%
R2 113k, 1%
ON/OFF
10k
2V
R
C
100k
R
PU
68pF
C
STBYMD
0.01µF
+
+
22µF
16V, X7R
× 3
3.3µF
50V, X5R
× 3
Figure 13. LTC3780 12V/5A, Buck-Boost Regulator
PART NUMBER DESCRIPTION COMMENTS
LTC3789 38V High Efficiency Synchronous 4-Switch Buck-Boost
DC/DC Controller
4V ≤ V
IN
≤ 38V, 0.8V ≤ V
OUT
≤ 38V 4mm × 5mm QFN-28, SSOP-28
LT3791-1 60V High Efficiency Synchronous 4-Switch Buck-Boost
DC/DC Controller
4.7V ≤ V
IN
≤ 60V, 1.2V ≤ V
OUT
≤ 30V TSSOP-38
LT8705 80V High Efficiency Synchronous 4-Switch Buck-Boost
DC/DC Controller
2.8V ≤ V
IN
≤ 80V, 1.3V ≤ V
OUT
≤ 80V 5mm × 7mm QFN-38,
TSSOP-38
LTC3785 10V High Efficiency Synchronous 4-Switch Buck-Boost
DC/DC Controller
2.7V ≤ V
IN
≤ 10V, 2.7V ≤ V
OUT
≤ 10V 4mm × 4mm QFN-24
LTC3112 15V, 2.5A Synchronous Buck-Boost DC/DC Converter 2.7V ≤ V
IN
≤ 15V, 2.5V ≤ V
OUT
≤ 14V 4mm × 5mm DFN-16,
TSSOP-20
LTC3115-1 40V, 2A Synchronous Buck-Boost DC/DC Converter 2.7V ≤ V
IN
≤ 40V, 2.7V ≤ V
OUT
≤ 40V 4mm × 5mm DFN-16,
TSSOP-20
LTM4607 High Efficiency Buck-Boost DC/DC µModule
®
4.5V ≤ V
IN
≤ 36V, 0.8V ≤ V
OUT
≤ 25V 15mm × 15mm × 2.8mm
LTM4609 High Efficiency Buck-Boost DC/DC µModule 4.5V ≤ V
IN
≤ 36V, 0.8V ≤ V
OUT
≤ 34V 15mm × 15mm × 2.8mm
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.