Datasheet

LTC3613
30
3613fa
Efficiency
SV
IN
PV
IN
V
OUT
PGOOD
RUN
V
RNG
SENSE
–
SENSE
+
R
PGD
100k
INTV
CC
R
ITH
49.9k
30.9k
10k
R
T
205k
R
VIN
2.2
R
DCR
8.25k
R
B
10
LTC3613
C
OUT1
330µF
6.3V
×2
C
IN1
: NICHICON UCJ1H101MCL1GS
C
OUT1
: SANYO 6TPE330MIL
D
B
: DIODES INC. SDM10K45
L1: COILCRAFT XAL1010-472ME
C
OUT2
100µF
×2
R
FB2
147k
R
FB1
20k
L1
4.7µH
D
B
C
SS
0.1µF
C
ITH1
1000pF
C
VIN
0.1µF
3613 TA02
V
IN
7V TO 24V
V
OUT
5V
8A
C
DCR
0.1µF
C
B
0.1µF
C
VCC
4.7µF
TRACK/SS
ITH
RT
MODE/PLLIN
EXTV
CC
SGND
BOOST
SW
INTV
CC
INTV
CC
PGND
V
OSNS
+
V
OSNS
–
C
IN2
10µF
×3
C
IN1
100µF
50V
+
+
LOAD CURRENT (A)
0.01 0.1
70
EFFICIENCY (%)
90
95
100
110
3613 TA03
85
80
75
FORCED
CONTINUOUS
MODE
PULSE-SKIPPING
MODE
V
IN
= 12V
V
OUT
= 5V
V
IN
= 12V
V
OUT
= 5V
TYPICAL APPLICATIONS
Figure 11. 5V, 8A, 200kHz High Efficiency Step-Down Converter