PRECISION ADJUSTABLE CURRENT-LIMITED

POWER-DISTRIBUTION SWITCHES

DESCRIPTION

The UTC US210AD is a cost-effective, low voltage, single

P-MOSFET load switch. It is intended for applications where

precision current limiting is required or heavy capacitive loads and

short-circuits are likely to be encountered. This device offers a

programmable current-limit threshold by an external resistor from

SET to ground.

The UTC US210AD device limits the output current to a safe

level by switching into a constant-current mode when the output

load exceeds the current-limit threshold. It also provides for a

reverse-voltage protection which can disable the power-switch in

the event that the output voltage is driven higher than the input to

protect devices on the input side of the switch.

The RDS(ON) of the MOSFET switch is as low as 160mΩ.

FEATURES

* Operating range: 2.7V~5.5V

* High-side MOSFET: 160mΩ (TYP.)

* Quiescent supply current: 25μA(TYP.)

* Standby supply current: 1μA (Max.)

* 1A Continuous Output Current* Programmable current limit, 1A(TYP.)

* Reverse input-output voltage protection

* Built-in soft-start

* Under-voltage Lockout