MB3885 Datasheet, PDF (10/29 Pages) Fujitsu Component Limited. – 1-channel DC/DC Converter IC with Synchronous Rectifier

MB3885
s TYPICAL CHARACTERISTICS
Supply Current vs. Supply Voltage
10
Ta = +25 °C
8
6
4
2
0
0
5
10
15
20
Supply voltage VCC (V)
Reference Voltage vs. Ambient Temperature
2.0
VCC = 12 V
1.5
VREF = 0 mA
1.0
0.5
0.0
−0.5
−1.0
−1.5
−2.0
−40 −20 0
20 40 60 80 100
Ambient temperature Ta (°C)
Triangular Wave Upper/Lower Limit Voltage vs.
Triangular Wave Oscillator Frequency
2.5
Ta = +25 °C
VCC = 12 V
CTL = 5 V
2.0
Upper
limit
1.5
Lower
1.0
limit
0.5
1k
10 k
100 k
1M
Triangular wave oscillator frequency fosc (Hz)
10
Reference Voltage vs. Supply Voltage
5
Ta = +25 °C
VREF = 0 mA
4
3
2
1
0
0
5
10
15
20
Supply voltage VCC (V)
Triangular Wave Upper/Lower Limit Voltage vs.
Ambient Temperature
2.5
VCC = 12 V
RT = 10 kΩ
CT = 470 pF
2.0
Upper
limit
1.5
Lower
1.0
limit
0.5
−40 −20 0 20 40 60 80 100
Ambient temperature Ta (°C)
(Continued)