MB39A103 Datasheet, PDF (10/33 Pages) List of Unclassifed Manufacturers – 4-Channel DC/DC Converter IC with Support for Low Voltage

MB39A103
Triangular Wave Oscillation Frequency
vs. Timing Resistor
10000
TA = +25 °C
VCC = 4 V
CTL = 3 V
1000
CT = 39 pF
100
CT = 100 pF
CT = 560 pF CT = 220 pF
Triangular Wave Oscillation Frequency
vs. Timing Capacitor
10000
TA = +25 °C
VCC = 4 V
CTL = 3 V
1000
RT = 11 kΩ
100
RT = 24 kΩ
RT = 130 kΩ RT = 56 kΩ
10
1
10
100
1000
Timing resistor RT (kΩ)
10
10
100
1000
Timing capacitor CT (pF)
10000
Triangular Wave Upper and Lower Limit Voltage
vs. Triangular Wave Oscillation Frequency
1.2 _{TA = +25 °C}
1.1 VCC = 4 V
CTL = 3 V
1.0 _{RT = 24 kΩ}
0.9
0.8
0.7
Upper
0.6
0.5
0.4
Lower
0.3
0.2
0 200 400 600 800 1000 1200 1400 1600
Triangular wave oscillation frequency fOSC (kHz)
Triangular Wave Upper and Lower Limit Voltage
vs. Operating Ambient Temperature
1.2
VCC = 4 V
1.1 _{CTL = 3 V}
1
RT = 24 kΩ
CT = 100 pF
0.9
Upper
0.8
0.7
0.6
0.5
Lower
0.4
0.3
0.2
−40 −20 0
20 40 60 80 100
Operating ambient temperature TA (°C)
Triangular Wave Oscillation Frequency
vs. Operating Ambient Temperature
560
VCC = 4 V
CTL = 3 V
540
RT = 24 kΩ
CT = 100 pF
520
500
480
460
440
−40 −20 0 20 40 60 80 100
Operating ambient temperature TA (°C)
10
(Continued)