Datasheet

15
LT1619
1619fa
APPLICATIO S I FOR ATIO
WUUU
S/S
FB
V
C
GND
8
7
6
5
1
2
3
4
V
IN
DRV
GATE
SENSE
LT1619
+
R
C
68.1k
C
Z
2200pF
C
IN1
: SANYO OS-CON 10SA100M
C
OUT1
: SANYO OS-CON 16SA150M ×4
D1: MOTOROLA MBRB1545CT
L1: SUMIDA CDEP149-1R8
R
SENSE
: PANASONIC 0.002Ω 1W
C
IN2
1µF
CERAMIC
C
IN1
100µF
+
C
OUT1
600µF
L1
1.8µH
V
IN
5V
D1
M1
FDS6690A
×2
C
DRV
0.1µF
CERAMIC
C
P
47pF
R
SENSE
C
OUT2
10µF
CERAMIC
R1
107k
12V
5A
1619 F15a
R2
12400Ω
Figure 16a. 5V to 12V/5A Boost Converter
LOAD CURRENT (A)
0.01
89
EFFICIENCY (%)
90
91
92
93
0.1 1 10
1619 F16b
88
87
86
85
94
95
V
IN
= 5V
Figure 16b. Efficiency of the 12V/5A Boost Converter