Jan 2018 V1.2
Over-Voltage Protection Load Switch
Integrated low Rdson nFET switch: typical 29m
4.5A continuous current capability
Default Over-Voltage Protection (OVP) threshold
OVP threshold adjustable range: 4V to 20V
Input maximum voltage rating: 35VDC
Fast turn-off response: typical 90ns
Over-Temperature Protection (OTP)
Under-Voltage Lockout (UVLO)
1.245mm × 1.245mm WLCSP-9 package
The AW338XX features an ultra-low 29m (typ.)
Rdson nFET load switch. When input voltage
exceeds the OVP threshold, the switch is turned off
very fast to prevent damage to the protected
downstream devices. The IN pin is capable of
withstanding fault voltages up to 35VDC.
The default OVP threshold is 5.95V (AW33801),
6.2V (AW33802), 6.8V (AW33805), 9.98V
(AW33809) and 14V (AW33812). The OVP
threshold can be adjusted from 4V to 20V through
external OVLO pin.
This device features over-temperature protection
that prevents itself from thermal damaging.
The AW338XX is available in a RoHS compliant 9-
bump 1.245mm × 1.245mm WLCSP.
TYPICAL APPLICATION CIRCUIT
Figure 1 AW338XX typical application circuit
Note: when using default OVP threshold, R1 and R2 are not required, and connect OVLO pin to ground.
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