MP5014A 10-13.8V, 5A Programmable Current-Limit Switch TSOT23

MP5014A 10-13.8V, 5A Programmable Current-Limit Switch TSOT23

The MP5014A is a protection device designed to protect circuitry on the output (source) from transients on the input (VCC).

Key Specifications

Features

• 10 V to 13.8 V Operating Input Range
• 15 V Typical Output Over-Voltage Clamp
• Absolute Maximum Voltage of 22 V
• Input Under-Voltage Lockout
• Low Inrush Current during Start-Up
• Integrated 36 mΩ Power FET
• Enable/Fault Pin
• Adjustable Slew Rate for Output Voltage
• Adjustable Current Limit
• Thermal Protection

Typical Application Circuit

Applications

• Storage (HDDs, SSDs)
• Hot-Swap Systems
• Set-Top Boxes

Design Notes

• The current-limit threshold must stay inside the SOA of the pass device at the applied voltage, including startup inrush.
• Hot-swap inrush control is set by the slew rate on the gate or the dV/dt capacitor — too fast trips the upstream supply.
• Reverse-current blocking behaviour differs between ideal-diode and load-switch topologies; pick the one that matches the fault you are protecting against.
• Route the fault flag to a pin the firmware actually polls; a latch-off protection with no report looks like a dead board in the field.

Common Questions