MP2018 3-16V, 500mA Low Quiescent Current Linear Regulator

MP2018 3-16V, 500mA Low Quiescent Current Linear Regulator

The MP2018 is a low-power linear regulator that supplies power to systems with high- voltage batteries.

Key Specifications

Features

• 3V to 16V Input Range
• 10µA Quiescent Supply Current
• Stable with Low-Value Output Ceramic Capacitor (>0.47μF)
• 500mA Specified Current
• Fixed Output Voltage
• Output ±2% Accuracy
• Specified Current Limit
• Power Good
• Programmable Power Good Delay
• Thermal Shutdown and Short-Circuit Protection (SCP)

Typical Application Circuit

Applications

• Portable/Battery-Powered Equipment
• Ultra-Low Power Microcontrollers
• Cellular Handsets

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