MB3782_1 Datasheet, PDF (18/27 Pages) Fujitsu Component Limited. – ASSP Power Supplies BIPOLAR Switching Regulator Controller

MB3782
s TYPICAL CHARACTERISTICS CURVES
Power supply voltage vs.reference voltage
5.0
Ta = +25˚C
Power supply voltage vs.average feed current
3.0
Ta = +25˚C
2.5
1.5
0
0
4
8
12
16
20
Power supply voltage VCC (V)
0
0
4
8
12
16
20
Power supply voltage VCC (V)
2.51
2.50
Ambient temperature vs.reference voltage
VCC = VCTL = 6 V
IOR = -1 mA
2.49
2.48
2.47
2.46
2.45
- 40 - 20 0 20 40 60 80 100
Ambient temperature Ta (˚C)
Sink current vs.collector saturation voltage
Timing capacity vs.triangular wave maximum amplitude voltage
2.2
VCC = 6 V
2.0
RT = 15 kΩ
Ta = +25˚C
1.8
1.6
1.4
1.2
1.0
0.8
10²
10³
10⁴
Timihg capacitance CT (pF)
2.0
VCC = 6 V
Ta = +25˚C
1.5
Frequency vs.error amp maximum output voltage amplitude
3.0
VCC = 6 V
Ta = +25˚C
1.0
2.0
1.0
0.5
0
0 10 20 30 40 50
Sink current IOL (mA)
0
100
500 1 k
5 k 10 k
50 k 100 k
500 k
Fequency f (Hz)
(Continued)
18