MB3827 Datasheet, PDF (19/41 Pages) Fujitsu Component Limited. – 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down

MB3827
(Continued)
Error amplifier gain and phase vs. frequency (CH1)
40
Ta = +25 °C
180
VCC = 9 V
240 kΩ
20
90
φ
4.7 kΩ
IN − + ^{2.4 kΩ}
0
0
44 −
AV
10 µF
+
45
−20
−90
4.7 kΩ
+
OUT
1.4 V
1.26 V
−40
−180
1k
10 k 100 k 1 M 10 M
Frequency f (Hz)
Error amplifier gain and phase vs. frequency (CH7)
Ta = +25 °C
40
180
VCC = 9 V
20
0
−20
−40
1k
φ
90
0
AV
−90
−180
10 k 100 k 1 M 10 M
240 kΩ
4.7 kΩ
IN
− + ^{2.4 kΩ}
6
−
10 µF
4.7 kΩ
8+
1.26 V
5
OUT
Frequency f (Hz)
Power dissipation vs. ambient temperature
1200
1000
800
600
400
200
0
−40 −20 0
20 40 60 80 100
Ambient temperature Ta (°C)
19