MB3883 Datasheet, PDF (17/39 Pages) Fujitsu Component Limited. – 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down

MB3883
(Continued)
Error amplifier gain and phase vs. frequency (CH1)
Ta = +25 °C
40
180
VCC = 5 V
240 kΩ
20
90
10 kΩ
φ
IN − +
34 −
0
0
1 µF ^{2.4 kΩ}
+
35
AV
10 kΩ
+
OUT
Error Amp.1
−20
−90
1.25 V
CS CTL Logic
−40
−180
1 k 10 k 100 k 1 M 10 M
Frequency f (Hz)
Error amplifier gain and phase vs. frequency (CH6)
Ta = +25 °C
40
180
VCC = 5 V
240 kΩ
20
90
10 kΩ
φ
IN − +
4−
0
0
1 µF ^{2.4 kΩ}
+
3
AV
10 kΩ
VB ⁺
OUT
Error Amp.6
−20
−90
1.26 V
−40
1k
10 k 100 k 1 M
Frequency f (Hz)
−180
10 M
CS CTL Logic
Power dissipation vs. ambient temperature
(LQFP-48P)
1000
860
800
600
400
200
0
−40 −20 0
20 40 60 80 100
Ambient temperature Ta ( °C)
Power dissipation vs. ambient temperature
(BCC-48P)
1000
800
710
600
400
200
0
−40 −20 0
20 40 60 80 100
Ambient temperature Ta ( °C)
17