R1218X Datasheet, PDF (14/14 Pages) RICOH electronics devices division – Step-up DC/DC converter for Whilte LED Backlight

R1218X
15. OVP Transient Response (Topt=25°C)
15
R1218X021A
25
12.5
OVP Voltage
20
10
15
7.5
10
5
2.5
5
0
0
0
20
40
60
80
100
0
Time (ms)
35
30
25
20
15
10
5
0
0
R1218X062A
OVP Voltage
20
40
60
80
100
Time (ms)
16. Efficiency dependence on inductors
90
R1218X041A [Internal Diode Type] ^VIN=3.6V
85
80
75
70
65
60
55
50
0
LQH32CN220K53
LQH32CN100K53
GLF2012T220K
GLF2012T100K
5
10
15
20
LED Current ILED[m A]
R1218X041A
OVP Voltage
20
40
60
80
100
Time (ms)
14