MPQ5073 0.5-5.5V, 2A Low RDSON Load Switch QFN-12

MPQ5073 0.5-5.5V, 2A Low RDSON Load Switch QFN-12

The MPQ5073 is a load switch to provide 2A load protection covering 0.5V to 5.5V voltage range.

Key Specifications

Features

• Guaranteed Industrial/Automotive Temp Range Limits
• Large VIN Range from 0.5V to 5.5V
• <5µA Shutdown Current
• Integrated 50mΩ Low RDSON FETs
• Typical 2A Load Current Range
• Push Pull PG Indicator
• Adjustable Start Up Slew Rate
• Output discharge function
• <200ns Short-Circuitry Response Protection
• Thermal Protection

Typical Application Circuit

Applications

• Notebook and Tablet Computers
• Portable Devices
• Solid State Drivers

Design Notes

• Size the inductor for the ripple current at the actual switching frequency, typically 30% of the DC load — not for the DC rating alone.
• The hot loop from input capacitor through the switch to ground sets conducted EMI. Keep that copper area as small as the layout allows.
• Output ripple is set by the capacitor ESR and its DC-bias derating; a 10 µF ceramic often behaves like 4 µF at the rated output voltage.
• Route the feedback divider from the output capacitor terminals, away from the switch node.

Common Questions