110
106
102
98
94
90
11 12
14
16
18
20
22
Vcc (V)
Fig. 7 Frequency vs. Vcc
24 25
85
80
75
70
65
60
-40
7.0
0
40
80
Temperature (°C)
Fig. 9 Max Duty vs. Temperature
120 125
6.5
6.0
5.5
5.0
4.5
-40
0
40
80
120 125
Temperature (°C)
Fig. 11 VCOMP open loop voltage vs. Temperature
LD7750B
30
28
26
24
22
20
11 12
14
16
18
20
22
24 25
Vcc (V)
Fig. 8 Green mode frequency vs. Vcc
35
30
25
20
15
10
-40
6.0
0
40
80
Temperature (°C)
Fig. 10 VCC OVP vs. Temperature
120 125
5.5
5.0
4.5
4.0
3.5
-40
0
40
80
120 125
Temperature (°C)
Fig. 12 OLP-Trip Level vs. Temperature
Leadtrend Technology Corporation
LD7750B-DS-01 OCT. 2011
8
www.leadtrend.com.tw