MC34063A Datasheet, PDF (8/12 Pages) ON Semiconductor – DC-to-DC CONVERTER CONTROL CIRCUITS

MC34063A MC33063A
Figure 13. Printed Circuit Board and Component Layout
(Circuits of Figures 7, 9, 11)
5.45′′
2.500′′
(Top view, copper foil as seen through the board from the component side)
MC34063A
MC34063A
MC34063A
(Top View, Component Side)
*Optional Filter.
INDUCTOR DATA
Converter
Inductance (µH)
Turns/Wire
Step–Up
170
38 Turns of #22 AWG
Step–Down
220
48 Turns of #22 AWG
Voltage–Inverting
88
28 Turns of #22 AWG
All inductors are wound on Magnetics Inc. 55117 toroidal core.
8
MOTOROLA ANALOG IC DEVICE DATA