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MB39A103 Datasheet, PDF (14/33 Pages) List of Unclassifed Manufacturers – 4-Channel DC/DC Converter IC with Support for Low Voltage | |||
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MB39A103
â SETTING THE OUTPUT VOLTAGE
⢠CH1 to CH4
VO
R1
âINEx
R2
CSx
Error
â Amp
+
+
1.24 V
VO (V) =
1.24
R2
(R1 + R2)
x: Each channel No.
â SETTING THE TRIANGULAR OSCILLATION FREQUENCY
The triangular oscillation frequency is determined by the timing capacitor (CT) connected to the CT terminal
(pin 9), and the timing resistor (RT) connected to the RT terminal (pin 8).
Moreover, it shifts more greatly than the calculated values according to the constant of timing resistor (RT) when
the triangular wave oscillation frequency exceeds 1 MHz. Therefore, set it referring to âTriangular Wave Oscillation
Frequency vs. Timing Resistorâ and âTriangular Wave Oscillation Frequency vs. Timing Capacitorâ in ââ TYPICAL
CHARACTERISTICSâ.
Triangular oscillation frequency : fOSC
fOSC (kHz) =:
1200000
CT (pF) â¢RT (kâ¦)
14
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