Datasheet

13
LTC3405A-1.5/LTC3405A-1.8
3405a1518fa
TYPICAL APPLICATIO S
U
Single Li-Ion to 1.5V/300mA Regulator
for High Efficiency and Small Footprint
V
IN
C
IN
**
4.7µF
CER
V
IN
2.7V
TO 4.2V
LTC3405A-1.5
RUN
MODE
3
4.7µH*
3405A1518 TA02a
5
4
6
1
2
SW
V
OUT
GND
C
OUT1
**
4.7µF
CER
V
OUT
1.5V
*
**
MURATA LQH32CN4R7M33
TAIYO YUDEN CERAMIC JMK212BJ475MG
OUTPUT CURRENT (mA)
50
EFFICIENCY (%)
70
90
100
0.1 10 100 1000
3405A1518 TA02b
30
1
60
60
40
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
V
OUT
100mV/DIV
AC COUPLED
I
L
200mA/DIV
I
L
200mA/DIV
3405A1518 TA02c
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.5V
I
LOAD
=
100mA TO 300mA