1 Features
1• 2.5-V to 18-V Operation
• Accurate Current Limiting for Startup
• Programmable FET SOA Protection
• Adjustable Current Sense Threshold
• Programmable Fault Timer
• Power-Good Output
• Fast Breaker for Short-Circuit Protection
• Analog Load-Current Monitor Output
• Programmable UV and OV
• Low-current Standby Mode
• FET Fault Detection Flag
• 3-mm × 3-mm, 16-Pin QFN package

2 Applications
• Server Backplanes
• Storage Area Networks (SAN)
• Telecommunications Mezzanine Cards
• Medical Systems
• Plug-In Modules
• Base Stations

3 Description
The TPS24720 is an easy-to-use, full-featured
protection device for 2.5-V to 18-V power rails. This
hot-swap controller drives an external N-channel
MOSFET, while protecting source, load and external
MOSFET against multiple 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 power limiting ensures the external
MOSFET operates inside its safe operating area
(SOA) at all times. This allows use of smaller FETs
while improving system reliability. Power good, Fault,
FET Fault, and current monitor outputs are provided
for system status monitoring and downstream load
control.