Datasheet

LT3497
16
3497f
TYPICAL APPLICATIONS
Li-Ion to 3/3 White LEDs
Conversion Effi ciency
Li-Ion to 2/4 White LEDs
Conversion Effi ciency
SW1 V
IN
LT3497
GND
SW2
L2
15µH
R
SENSE2
10Ω
R
SENSE1
10Ω
C3
1µF
C1
1µF
C2
1µF
C1, C2: TAIYO YUDEN GMK212BJ105KG
C3: TAIYO YUDEN LMK212BJ105MG
L1: MURATA LQH32CN100K53
L2: MURATA LQH32CN150K53
3497 TA03a
V
IN
3V TO 5V
L1
10µH
CAP1 CAP2
LED1 LED2
CTRL1
SHUTDOWN
AND DIMMING
CONTROL 1
SHUTDOWN
AND DIMMING
CONTROL 2
CTRL2
OFF ON
OFF ON
LED CURRENT (mA)
0
65
70
80
15
3497 TA03b
60
55
510 20
50
45
75
EFFICIENCY (%)
V
IN
= 3.6V
2/4LEDs
SW1 V
IN
LT3497
GND
SW2
L2
15µH
R
SENSE2
10Ω
R
SENSE1
10Ω
C3
1µF
C1, C2: TAIYO YUDEN GMK212BJ105KG
C3: TAIYO YUDEN LMK212BJ105MG
L1, L2: MURATA LQH32CN150K53
C2
1µF
3497 TA04a
C1
1µF
V
IN
3V TO 5V
L1
15µH
CAP1 CAP2
LED1 LED2
CTRL1
SHUTDOWN
AND DIMMING
CONTROL 1
SHUTDOWN
AND DIMMING
CONTROL 2
CTRL2
OFF ON
OFF ON
LED CURRENT (mA)
0
65
70
80
15
3497 TA04b
60
55
510 20
50
45
75
EFFICIENCY (%)
V
IN
= 3.6V
3/3LEDs