1 Features

1• 2.5 V to 18 V Bus Operation

• Continuous Current up to 12 A

• Integrated MOSFET with RDS(on) of 3 mΩ (Typical)

• Programmable Current Limit

• Programmable FET SOA Protection

• High ILimit Accuracy from 10 mA to 12 A

• Programmable Fault Timer

• Fast Breaker for Short-Circuit Protection

• Programmable VOUT Slew Rate, UV and OV

• Power-Good and Fault Outputs

• Analog Load Current Monitor

• Thermal Shutdown

• UL 2367 Recognized – File No. E339631

2 Applications

• Server

• High Current Load Switch

• Communications Equipment

• Plug-In Modules

• RAID Systems

• Base Stations

• Fan Control

3 Description

The TPS2475x provide highly integrated load

protection for 2.5 V to 18 V applications. The devices

integrate a hot swap controller and a power MOSFET

in a single package for small form factor applications.

These devices protect source, load and internal

MOSFET from potentially damaging events. During

startup, load current and MOSFET power dissipation

are limited to user-selected values. After startup,

currents above the user-selected limit will be allowed

to flow until programmed timeout – except in extreme

overload events when load is immediately

disconnected from source.

Programmable FET SOA protection ensures the

internal MOSFET operates within its safe operating

area (SOA) at all times and the load starts up at a

defined ramp rate. This enhances the internal

MOSFET performance while improving system

reliability. Power good, Fault, and current monitor

outputs are provided for system status monitoring and

downstream load control.

The devices are available in a 36-pin, 7-mm × 3.5-

mm, QFN (RUV) package and fully specified over the

–40°C to +125°C operating junction temperature.