MB3881 Datasheet, PDF (16/40 Pages) Fujitsu Component Limited. – 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

MB3881
(Continued)
Error amplifier gain and phase vs. frequency (CH1)
Ta = +25 °C
40
180
VCC = 9 V
20
90
φ
0
0
AV
−20
−90
−40
1k
−180
10 k 100 k 1 M 10 M
Frequency f (Hz)
10 kΩ
IN − + ^{2.4 kΩ}
10 µF
10 kΩ
1.4 V
240 kΩ
46 −
+
+
1.26 V
47
OUT
Error amplifier gain and phase vs. frequency (CH5)
Ta = +25 °C
40
180
VCC = 9 V
2.5 V
20
90
240 kΩ
φ
10 kΩ
10 kΩ
0
0
IN − +
2.4 kΩ
21 _−
AV
10 µF
22 +
20
−20
−90
18 ⁺
OUT
10 kΩ ^{1.4 V}
10 kΩ
−40
−180
1 k 10 k 100 k 1 M 10 M
Frequency f (Hz)
Error amplifier gain and phase vs. frequency (CH8)
Ta = +25 °C
40
180
VCC = 9 V
1V
20
90
240 kΩ
φ
10 kΩ 10 kΩ
0
0
IN − + ^{2.4 kΩ}
5_−
AV
10 µF
4
−20
−90
6⁺
OUT
10 kΩ 10 kΩ
−40
−180
1 k 10 k 100 k 1 M 10 M
Frequency f (Hz)
16