Datasheet

14
LTC3405A-1.5/LTC3405A-1.8
3405a1518fa
TYPICAL APPLICATIO S
U
V
IN
C
IN
**
2.2µF
CER
V
IN
2.7V
TO 4.2V
LTC3405A-1.5
RUN
MODE
3
2.2µH*
3405A1518 TA03a
5
4
6
1
2
SW
V
OUT
GND
C
OUT1
**
2.2µF
CER
V
OUT
1.5V
*
**
TAIYO YUDEN LB2012T2R2M
TAIYO YUDEN CERAMIC LMK212BJ225MG
OUTPUT CURRENT (mA)
0.1
EFFICIENCY (%)
10
1000
90
80
70
60
50
40
30
3405A1518 TA03b
1 100
V
IN
= 2.7V
V
IN
= 4.2V
V
OUT
= 1.5V
V
IN
= 3.6V
V
OUT
100mV/DIV
AC COUPLED
I
L
100mA/DIV
I
L
200mA/DIV
3405A1518 TA03c
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.5V
I
LOAD
=
50mA TO 150mA
Single Li-Ion to 1.5V/150mA Regulator
Using All Ceramic Capacitors Optimized for Smallest Footprint