The Future of Analog IC Technology
12 V, 5 A, Programmable Current-Limit
Switch with Over-Volatge Clamp and
Slew-Rate Control in TSOT23-8
The MP5014A is a protection device designed to
protect circuitry on the output (source) from
transients on the input (VCC). Also, it protects VCC
from undesired shorts and transients coming
from the source.
At start-up, the inrush current is limited by
restricting the slew rate at the source. The slew
rate is controlled by a small capacitor at DV/DT.
DV/DT has an internal circuit that allows this pin
to float (no connection) and still receive 1 ms
ramp time at the source.
The maximum load at the output is current limited.
This is accomplished by utilizing a sense FET
topology. The magnitude of the current limit is
controlled by an external resistor from I-LIMIT to
An internal charge pump drives the gate of the
power device, allowing a very low on-resistance
DMOS power FET of just 36 mΩ.
The source is protected from the VCC input going
too low or too high. Under-voltage lockout (UVLO)
assures that VCC is above the minimum operating
threshold before the power device is turned on. If
VCC rises above the high output threshold, the
source voltage is limited.
• 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
• TSOT23-8 Package
• Storage (HDDs, SSDs)
• Hot-Swap Systems
• Set-Top Boxes
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality
Assurance. “MPS” and “The Future of Analog IC Technology” are registered
trademarks of Monolithic Power Systems, Inc.
MP5014A Rev. 1.0
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