MB3817 Datasheet, PDF (13/29 Pages) Fujitsu Component Limited. – Switching Regulator Controller

s SETTING OUTPUT VOLTAGE
• Output voltage VO is plus
V0⁺
R1
−IN
4
+IN
R2
3
VREF
Error Amp.
−
+
MB3817
V0⁺ = ^VREF (R1 + R2)
R2
• Output voltage VO is minus
VREF
R2
R
−IN
4
+IN
3
R1
R
V0^−
Error Amp.
−
+
V0^−
=−
VREF
2 × R2
(R1 + R2) + VREF
13