MB3886 Fujitsu Microelectronics, Inc., MB3886 Datasheet - Page 11

• Manufacturer Part Number: MB3886
• Description: 2-channel Dc/dc Converter Ic With Overcurrent Protection Symmetrical-phase Type
• Manufacturer: Fujitsu Microelectronics, Inc.

(Continued)
1.264
1.262
1.258
1.256
1.254
1.252
1.248
1.246
1.244
1.242
1.238
1.236
1.26
1.25
1.24
320
315
310
305
300
295
290
285
280
275
270
265
260
Triangular Waveform Oscillation Frequency
Error Amp. Gain/Phase vs. Frequency (CH1)
0
40
Error Amp. Threshold Voltage
40
30
20
10
10
20
30
40
Ambient Temperature (CH1)
Ambient Temperature Ta ( C)
100
0
20
Supply voltage V
5
0
1 k
Frequency f (Hz)
Supply Voltage
20
vs.
10 k
40
vs.
10
100 k
Av
60
VCC
CC
Ta
(V)
Ta
RT
CT
80
15
1 M
12 V
25 C
9.1 k
330 pF
100
25 C
10 M
180
90
0
90
180
20
800
770
700
600
500
400
300
200
100
Power Dissipation vs. Ambient Temperature
0
IN
40
4.7 k
4.7 k
1.5
0.5
0.5
1.5
Triangular Waveform Oscillation Frequency
10 F
2
1
0
1
2
40
Ambient Temperature Ta ( C)
20
2.4 k
20
Ambient Temperature Ta ( C)
0
Ambient Temperature
(23)
(24)
8
7
0
20
VCC
240 k
(Error Amp.2)
20
Error Amp.1
40
vs.
12 V
40
60
(22)
9
OUT
MB3886
60
80
VCC
RT
CT
80
9.1 k
330 pF
100
12 V
100
11