MB3785A Datasheet, PDF (14/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller (4 Channels plus High-Precision, High-Frequency Capabilities)

MB3785A
s METHODS OF SETTING THE OUTPUT VOLTAGE
1. Method of Connecting Channels 1 and 2: When Output Voltage (VO) is Positive
VREF
R
R1
R
R2
VOUT⁺
+
–
VO⁺ = – ^VREF (R1 + R2)
2 × R2
RNF
2. Method of Connecting Channels 1 and 2: When Output Voltage (VO) is Negative
VREF
VO^– = – ^VREF (R1 + R2) + VREF
2 × R1
R
R1
+
–
R
R2
VOUT^–
RNF
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