MC34063A_10 Datasheet, PDF (9/15 Pages) ON Semiconductor – 1.5 A, Step−Up/Down/ Inverting Switching Regulators

MC34063A, MC33063A, SC34063A, SC33063A, NCV33063A
Figure 15. Printed Circuit Board and Component Layout
(Circuits of Figures 9, 11, 13)
Converter
INDUCTOR DATA
Inductance (mH)
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.
http://onsemi.com
9