LTC3406A
TYPICAL APPLICATIONS
Single Li-Ion 1.2V/600mA Regulator for High Efficiency and Small Footprint
2.2μH*
VIN
4
CIN†
VIN
3
SW
22pF
4.7μF
CER
LTC3406A
VOUT
1.2V
600mA
COUT**
10μF
1
5
CER
RUN VFB
GND
2
301k
301k *MURATA LQH32CN2R2M33
** TAIYO YUDEN JMK316BJ106ML
3406A TA02 † TAIYO YUDEN JMK212BJ475MG
Efficiency vs Load Current
100
90
80
70
60
50
40
30
20
VIN = 2.7V
10
VIN = 3.6V
0 VOUT = 1.2V
VIN = 4.2V
0.1
1
10
100
1000
OUTPUT CURRENT (mA)
3406A TA03
Load Step
VOUT
100mV/DIV
IL
500mA/DIV
ILOAD
500mA/DIV
VIN = 3.6V 20μs/DIV
VOUT = 1.2V
ILOAD = 300mA TO 600mA
3406A TA05
3406afa
14