Datasheet

12
LTC3405A-1.5/LTC3405A-1.8
3405a1518fa
V
OUT
100mV/DIV
AC COUPLED
I
L
200mA/DIV
I
L
200mA/DIV
3405A1518 F06c
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.8V
I
LOAD
=
100mA TO 300mA
APPLICATIO S I FOR ATIO
WUUU
OUTPUT CURRENT (mA)
50
EFFICIENCY (%)
70
90
100
0.1 10 100 1000
3405A1518 F06b
30
1
60
60
40
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
V
IN
C
IN
**
4.7µF
CER
V
IN
2.7V
TO 4.2V
LTC3405A-1.8
RUN
MODE
3
6.8µH*
3405A1518 F06a
5
4
6
1
2
SW
V
OUT
GND
C
OUT
**
4.7µF
CER
V
OUT
1.8V
*SUMIDA CMD4D11-6R8MC
** TAIYO YUDEN JMK212BJ475MG
Figure 6a.
Figure 6b.
Figure 6c.