A4402
ENB
VSW
VO2
NPOR
WDI
VTSET
Constant On-Time Buck Converter
With Integrated Linear Regulator
Watchdog Timing Diagram
tss
UVLO Rising
tpor
twait
Vreset
tpor
Vtrip
twait
Allegro MicroSystems, Inc.
7
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com