General Description

The AOZ1375DI is a bidirectional current-limited load switch

intended for applications that require circuit protections. The

device operates from voltages between 3.4 V and 23 V and

features two power terminals, VINT and VBUS, which are

rated at 28 V Absolute Maximum. When used as source

switch, the internal current limiting circuit protects the supply

from large load current. The current limit can be set with

an external resistor. The back-to-back switch configuration

blocks any leakage between VINT and VBUS pins when the

device is disabled.

The AOZ1375DI provides over-voltage protection,

short-circuit protection and thermal protection function

that limit excessive power dissipation. The over-voltage

protection threshold is selectable by an external resistor.

The internal soft-start circuitry controls inrush current due

to highly capacitive loads. The soft-start can be adjusted

using an external capacitor. It consumes less than 5 μA in

shutdown.

The AOZ1375DI-01 is available in a 3 mm x 3 mm DFN-12L

package which can operate over -40°C to +85°C temperature

range.

Features

• 17.8 mΩ typical ON resistance

• 3.4 V to 23 V operating input voltage

• VINT and VBUS are both rated 28 V

• Bidirectional operation

• Reverse blocking to completely isolate VINT and

VBUS when disabled

• Programmable current limit

• Short-circuit protection

• Selectable over-voltage protection

• Programmable soft-start

• Under-voltage lockout

• Over-voltage lockout

• Thermal shutdown protection

• ±4 kV HBM ESD rating

• ±8 kV HBM ESD rating for VBUS and VINT

• DFN3x3-12L package

• UL 2367: file no. E495859

• IEC 62368-1: file no. E326264.

Applications

• Thunderbolt/USB Type-C PD power switch

• Notebook/desktop

• Monitors

• Docking station/dongles