LT1619 Linear Technology, LT1619 Datasheet - Page 15

• Manufacturer Part Number: LT1619
• Description: Low Voltage Current Mode PWM Controller
• Manufacturer: Linear Technology

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