 Features
 Input voltage: 2.7 V to 5.5 V
 Typical 57 mΩ on-resistance
 Undervoltage lockout
 Overcurrent protection, short circuit protection
and over temperature protection
 Fault time 8 ms (typ) with blanking
 Reverse blocking (no body diode)
 No reverse current when power ON or power
OFF
 Enable polarity: active high or active low
 Quick output discharge
− DIO70040H: available, EN high
− DIO70040NH: not available, EN high
− DIO70040L: available, EN low
− DIO70040NL: not available, EN low
 Applications
 USB ports / hubs
 Digital TV
 Set-top boxes
 VOIP phones
 Description
The DIO70040 power distribution switch is intended
for applications where precision current limiting is
required or heavy capacitive loads and short circuits
are encountered. The power switch rising and falling
times are controlled to minimize current surges
during turning on / off.
The DIO70040 provides 3 A current limit.
The DIO70040 device limits the output current under
a safe level by using a constant current mode when
the output load exceeds the current limit threshold.
The DIO70040 is available in the SOT23-5, SOIC-8,
EP-MSOP8 and MSOP-8 packages. It is rated over
the -40°C to 85°C temperature range.