MB39A105 Datasheet, PDF (7/27 Pages) Fujitsu Component Limited. – 1-ch DC/DC Converter IC for low voltage

MB39A105
s TYPICAL CHARACTERISTICS
Power Supply Current vs. Power Supply Voltage
5
Ta = +25 °C
RT = 7.5 kΩ
4
3
2
1
0
0
2
4
6
8
10
Power supply voltage VCC (V)
Error Amplifier Threshold Voltage vs.
Power Supply Voltage
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
Ta = +25 °C
VCC = 3.3 V
2
4
6
8
10
Power supply voltage VCC (V)
Error Amplifier Threshold Voltage vs.
Ambient Temperature
0.52
VCC = 3.3 V
RT = 7.5 kΩ
0.51
0.50
0.49
0.48
−40 −20 0
20 40 60 80 100
Ambient temperature Ta (°C)
Power Supply Current vs. RT Terminal Current
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Ta = +25 °C
VCC = 3.3 V
ICC
10
20
30
40
50
RT terminal current IRT (µA)
Triangular Wave Oscillation Frequency vs.
Power supply voltage
600
Ta = +25 °C
RT = 7.5 kΩ
550
500
450
400
1
2
3
4
5
6
7
Power supply voltage VCC (V)
(Continued)
7