Datasheet

13
LTC34 06B-2
sn3406b2 3406b2fs
TYPICAL APPLICATIO S
U
Single Li-Ion 1.2V/600mA Regulator for
High Efficiency and Small Footprint
V
IN
C
IN
4.7µF
CER
V
IN
2.7V
TO 4.2V
LTC3406B-2
RUN
3
2.2µH*
22pF
301k
301k
3406B TA09
5
4
1
2
SW
V
FB
GND
C
OUT
**
10µF
CER
V
OUT
1.2V
*MURATA LQH32CN2R2M33
** TAIYO YUDEN JHK316BJ106ML
TAIYO YUDEN JMK212BJ475MG
Efficiency vs Output Current
Load Step
Load Step
OUTPUT CURRENT (mA)
0.1
EFFICIENCY (%)
10
1000
100
90
80
70
60
50
40
30
20
10
3406B G02
1 100
V
OUT
= 1.2V
T
A
= 25°C
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
I
LOAD
500mA/DIV
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.2V
I
LOAD
= 0mA TO 600mA
3406B TA11
V
OUT
100mV/DIV
AC COUPLED
I
L
500mA/DIV
I
LOAD
500mA/DIV
20µs/DIV
V
IN
= 3.6V
V
OUT
= 1.2V
I
LOAD
= 100mA TO 600mA
3406B TA12