Datasheet

LTC3786
29
3786fa
applicaTions inForMaTion
Figure 14. High Efficiency 24V Boost Converter with Inductor DCR Current Sensing
OUTPUT CURRENT (A)
3210
94
EFFICIENCY (%)
96
4
3786 F14b
92
90
88
86
100
98
V
IN
= 12V
SENSE
+
SENSE
–
TG
C
ITHA
220pF
C
B
0.1µF
LTC3786
C
SS
0.1µF
C
ITH
15nF
C
IN
22µF
MBOT
MTOP
D
C
INT
4.7µF
3786 F14a
V
OUT
24V
4A
V
IN
5V TO 24V
R
S2
26.1k
1%
C1
0.1µF
L
10.2µH
BOOST
SW
VBIAS
BG
GND
PLLIN/MODE
PGOOD
INTV
CC
VFB
ITH
SS
R
A
12.1k
100k
R
ITH
8.87k
R
B
232k
FREQ
RUN
C
OUTA
22µF
×4
C
OUTB
220µF
+
C1: TDK C1005X7R1C104K
C
IN
, C
OUTA
: TDK C4532X5R1E226M
C
OUTB
: SANYO, 50CE220AX
L: PULSE PA2050.103NL
MBOT, MTOP: RENESAS RJK0305
D: INFINEON BAS140W
R
S1
53.6k
1%