LT1937 LINER [Linear Technology], LT1937 Datasheet - Page 18

• Manufacturer Part Number: LT1937
• Description: 20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN
• Manufacturer: LINER [Linear Technology]

LT3498
TYPICAL APPLICATIONS
18
C
C1: TAIYO YUDEN GMK212BJ105KG
C3: TAIYO YUDEN TMK316BJ106ML
L1, L2: MURATA LQH32CN100K53
IN
, C2: X5R OR X7R WITH SUFFICIENT VOLTAGE RATING
20mA
R
10
SENSE1
Li-Ion to Two White LEDs and OLED/LCD Bias
C1
1 F
75
45
40
70
65
60
55
50
CAP1
LED1
0
V
IN
SHUTDOWN
SW1
CONTROL
DIMMING
OFF
= 3V TO 5V
CTRL1
AND
V
10 H
ON
L1
IN
5
LED Effi ciency
LED CURRENT (mA)
= 3.6V, 2 LEDs
GND1
V
IN
LT3498
10
10 H
GND2
L2
C
4.7 F
IN
SW2
SHUTDOWN
CONTROL
OFF
CTRL2
15
AND
ON
CAP2
3498 TA02b
20
V
FB2
OUT2
C2
0.47 F
3498 TA02
R
2.21M
FB2
C3
10 F
16V
24mA
3498f