34701_07 Datasheet, PDF (33/38 Pages) Freescale Semiconductor, Inc – 1.5 A Switch-Mode Power Supply with Linear Regulator

TYPICAL APPLICATIONS
BOOT
VIN2
SW
VBST ^{Vin = 5.0 V}
Cb
Vout = 1.5 V ^{To Load}
The same guidelines as those for the layout of the main
switching buck regulator should be applied to the layout of the
low power auxiliary boost regulator and to some extent, the
power path of the linear regulator.
INV
Vout Return
PGND
GND
Power
Ground
Signal
Ground
Figure 32. 34701 Buck Regulator Layout
Analog Integrated Circuit Device Data
Freescale Semiconductor
34701
33