MPQ20051 0.8-5V, 1A Linear Regulator AEC-Q100 Qualified QFN-8

MPQ20051 0.8-5V, 1A Linear Regulator AEC-Q100 Qualified QFN-8

The MPQ20051 is a low-dropout linear regulator that supplies up to 1A current with a 140mV dropout voltage.

Key Specifications

Features

• Guaranteed Industrial/Automotive Temp Range Limits
• Up to 1A Output Current
• Low 140mV Dropout at 1A
• Low 130μA Ground Current
• Output Voltage Available from 0.8V to 5V
• Low Noise: 13μVRMS typical (10Hz to 100kHz)
• 63dB PSRR @1kHz
• Stable with Ceramic Capacitor
• Excellent Load/Line Transient Response
• Current Limiting and Thermal Protection

Typical Application Circuit

Applications

• Automotive/Industrial Power System
• Notebook Computers
• Cordless Telephones
• Cellular Phones

Design Notes

• Dissipation is (VIN − VOUT) × IOUT. Check it against the package thermal resistance at the real ambient temperature before committing to the full rated current.
• Some low-noise LDOs require a minimum output capacitor ESR for loop stability — read the stability section before substituting a ceramic part.
• Add a bypass capacitor on the reference pin where provided; it sets the output noise floor.
• PSRR falls as the input-to-output differential shrinks, so headroom matters at low VIN.

Common Questions