MCP1640 Synchronous Boost Converter Evaluation Board User’s Guide
2.3.1.4
ADJUSTABLE V OUT SETTING
RT 1 = RB 1 ? ? ? ? ? – 1
RT 4 = RB 2 ? ? ------------- ? – 1
The resistor divider RT and RB are used to set the converter output voltage. By setting
the V OUT SEL switch in the open or OFF position, the output voltage can be calculated
using the following equation:
V OUT
-------------
V FB
OR
V OUT
? V FB ?
Where: V FB = 1.21V
DS51880A-page 14
Note:
The V OUT SELL switch will not be used.
? 2010 Microchip Technology Inc.
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