R1218XXX1A RICOH [RICOH electronics devices division], R1218XXX1A Datasheet - Page 14

• Manufacturer Part Number: R1218XXX1A
• Description: Step-up DC/DC converter for Whilte LED Backlight
• Manufacturer: RICOH [RICOH electronics devices division]

14
15. OVP Transient Response (Topt=25 C)
16. Efficiency dependence on inductors
R1218X
12.5
35
30
25
20
15
10
7.5
2.5
5
0
15
10
90
85
80
75
70
65
60
55
50
5
0
0
0
0
OVP Voltage
20
R1218X021A
OVP Voltage
R1218X041A [Internal D iode Type]
20
5
LED Current I
40
R1218X062A
40
Time (ms)
Time (ms)
10
60
60
LED
[m A]
LQH 32CN 220K53
LQH 32CN 100K53
GLF2012T220K
GLF2012T100K
80
80
15
V
IN
=3.6V
100
100
20
25
20
15
10
5
0
0
20
OVP Voltage
R1218X041A
40
Time (ms)
60
80
100