ET-MC34063 데이터 시트보기 (PDF) - Estek Electronics Co. Ltd

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ET-MC34063

DC to DC Converter Controller

Estek Electronics Co. Ltd 

‹ Design Formula Table

ET- MC34063

Vsat

: Saturation voltage of the output switch.

VF

: Forward Voltage drop of the output rectifier.

The following power supply characteristics must be chosen.

Vin

: Nominal input voltage.

Vout

: Desired output voltage.

Iout

: Desired output current.

Fmin

: Minimum desired output switch frequency at the selected values of Vin an Io.

Vripple(pp) : Desired peak-to-peak output ripple voltage. In practice, the calculated capacitor value will

need to be increased due to its equivalent series resistance and board layout. The ripple

voltage should be kept to a low value since it will directly affect the line and load regulation.

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Version 0.3

27 Sep 2011

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