ETA6021

www.ETAsolution.com

Outperform with Efficiency

Proprietary Information DO NOT Distribute

1

Precision Load Switch with Adjustable Current Limit

DESCRIPTION

The ETA6021 is a load switch which provides full protection

to systems and loads which may encounter large current

conditions. ETA6021 offers a 95mΩ current-limited switch

which can operate over an input voltage range of 2.5-5.5V.

The current limit can be externally programmed by a

precision resistor, ranges from 75mA to 1.7A. Switch

control is by a logic input (EN) capable of interfacing

directly with low voltage control signals. Current is

prevented from flowing when the switch is off and the

output voltage is higher than the input voltage. ETA6021

also features thermal shutdown protection which shuts off

the switch to prevent damage to the part when a

continuous over-current condition causes excessive

heating. When the switch current reaches the current limit,

the parts operate in a constant-current mode to prohibit

excessive currents from causing damage. The ETA6021 will

not turn off after a current limit fault, but will rather

remain in the constant current mode indefinitely.

ETA6021 is housed in a tiny SOT23-5L package

APPLICATION



USB ports/Hubs



Hot Swaps



Cellphones



Tablet PC



Set Top Box



PC motherboard



Handheld Devices

FEATURES



Up to 1.5A Max Load current



Accurate Current-limit threshold: +/-5%



Programmable Current-limit : 75mA to 1.7A



Fast Over-Current Response



Reversed Current blocking



Thermal Shutdown, UVLO protection



Tiny SOT23-5L Package

ORDERING INFORMATION

PART

PACKAGE PIN

TOP MARK

ETA6021S2F-T SOT23-5

BxYW

Date Code

Product Number

TYPICAL APPLICATION

OUT

ILIM

IN

EN

GND

0.1µ F

120µ F

USB

PORT

5V USB INPUT