GENERAL DESCRIPTION
The ADM1085/ADM1086/ADM1087/ADM1088 are simple sequencing circuits that provide a time delay between the enabling of voltage regulators and/ordc-dc converters atpower upin multiple supply systems. When the output voltage of the first power module reaches a preset threshold,atime delayis initiated  before an enable signal allows subsequent regulators to power up. Any number ofthese devices can be cascaded with regulators toallow sequencing ofmultiple power supplies.

FEATURES
Provide programmable time delays between enable signals
Can be cascadedwith power modules for multiple supply sequencing
Power supply monitoring from 0.6 V Output stages:
   High voltage (up to 22 V) open-drain output (ADM1085/ADM1087)
   Push-pull output (ADM1086/ADM1088)
Capacitor-adjustable time delays
High voltage (up to 22 V) Enable and VINinputs
Low power consumption (15 µA)
Specified over –40°C to +125°Ctemperature range
6-leadSC70package

APPLICATIONS
Desktop/notebook computers,servers
Low power portable equipment
Routers
Base stations
Line cards
Graphics cards