iru3065 International Rectifier Corp., iru3065 Datasheet - Page 7

• Manufacturer Part Number: iru3065
• Description: Positive To Negative Dc To Dc Controller
• Manufacturer: International Rectifier Corp.

Figure.5 Efficiency with 4.7uH inductor, 250kHz op-
eration
Figure 6. Efficiency with 1.2uH inductor, 800k
Hz operation
75
70
65
60
55
50
75
70
65
60
55
50
Efficiency versus load current
0
0
Efficiency versus load current
Characteristics of IRU3065
Efficiency(%) with diode
Efficiency(%) with 100ohm resistor
Efficiency(%) with diode
Efficiency(%) with 100 resistor
100
100
200
Iout(mA)
Iout(mA)
200
300
300
400
400
www.irf.com
Fig.8. Frequency versus load current. (Vout= -5V,
Iocp=400mA).
Fig.7. Output voltage (absolute value) versus load
current. (Vout= -5V, Iocp=400mA)
6
5
4
3
2
1
0
900
800
700
600
500
400
300
200
100
0
0
0
Frequency (KHz) versus load current
200
200
Vout(V) vs Iout(mA)
400
Iout(mA)
400
Iout(mA)
IRU3065(PbF)
600
600
800
800
1000
1000
7