MPQ5071-AEC1 0.5-5.5V, 0.5A Low RDS(ON) Load Switch QFN-12

MPQ5071-AEC1 0.5-5.5V, 0.5A Low RDS(ON) Load Switch QFN-12

The MPQ5071 is a programmable load switch that provides 0.5A of load protection across a 0.5V to 5.5V voltage range.

Key Specifications

Features

• Guaranteed Industrial/Automotive Temperature Range Limits
• 0.5V to 5.5V VIN Range
• Shutdown Current <5µA
• Integrated 50mΩ Low RDS(ON) MOSETs
• 0.5A Load Current
• Push/Pull Power Good (PG) Indicator
• Adjustable Start-Up Slew Rate
• Output Discharge
• Short-Circuit Protection (SCP) <200ns
• Thermal Shutdown Protection

Typical Application Circuit

Applications

• Notebook and Tablet Computers
• Portable Devices
• Solid State Drives (SSDs)

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