DESCRIPTION

The UTC ULS2621 are slew rate controlled load switches

designed for 1.1V to 5.5V operation.

The devices guarantee low switch on-resistance at 1.2V input.

They feature a controlled soft-on slew rate of typical 1.0ms that

limits the inrush current for designs of heavy capacitive load and

minimizes the resulting voltage droop at the power rails.

These devices feature low voltage control logic interface

(On/Off interface) that can interface with low voltage control

signal without extra level shifting circuit. ULS2621 also integrates

an output discharge switch that enables fast shutdown load

discharge.

ULS2621 have exceptionally low shutdown current and

provide reverse blocking to prevent high current flowing into the

power source.

FEATURES

1.1 V to 5.5 V operation voltage range

* 62mΩ typical from 2V to 5V

* Low Ron down to 1.2V

* Slew rate controlled turn-on: 1.0 ms at 3.6V

* Fast shutdown load discharge

* Low quiescent current

< 1 μA when disabled

6 μA typical at VIN = 1.2V

* Reverse current blocking when switch is off