lt3498eddb-trpbf Linear Technology Corporation, lt3498eddb-trpbf Datasheet - Page 20

• Manufacturer Part Number: lt3498eddb-trpbf
• Description: 20ma Led Driver And Oled Driver With Integrated Schottky In 3mm X 2mm Dfn
• Manufacturer: Linear Technology Corporation

LT3498
TYPICAL APPLICATIONS
20
C
C1: TAIYO YUDEN GMK212BJ105KG
C3: TAIYO YUDEN TMK316BJ106ML
L1: MURATA LQH32CN150K53
L2: MURATA LQH32CN100K53
IN
, C2: X5R OR X7R WITH SUFFICIENT VOLTAGE RATING
C1
1 F
R
10
SENSE1
Li-Ion to Three White LEDs and OLED/LCD Bias
20mA
80
75
45
70
65
60
55
50
CAP1
LED1
0
V
IN
SHUTDOWN
SW1
CONTROL
DIMMING
OFF
= 3V TO 5V
CTRL1
AND
15 H
5
V
ON
L1
IN
LED CURRENT (mA)
LED Effi ciency
= 3.6V, 3 LEDs
GND1
3498 TA04
V
IN
10
LT3498
10 H
GND2
L2
C
4.7 F
IN
SW2
SHUTDOWN
CONTROL
OFF
15
CTRL2
AND
ON
3498 TA04b
CAP2
20
V
FB2
OUT2
C2
0.47 F
R
2.21M
FB2
C3
10 F
16V
24mA
3498f