MP20056 2.5-5.5V, 250mA Linear Regulator TSOT23

MP20056 2.5-5.5V, 250mA Linear Regulator TSOT23

The MP20056 is a low-dropout linear regulator that supplies up to 250mA current with a 100mV dropout voltage and can operate from 2.5V to 5.5V input.

Key Specifications

Features

• Up to 250mA Output Current
• Low 100mV Dropout at 250mA
• Low 150μA Ground Current
• Low Noise: 13μVRMS typical (10Hz to 100kHz)
• 63dB PSRR @1kHz
• Stable with Ceramic Capacitor
• Excellent Load/Line Transient Response
• Current Limiting and Thermal Protection
• Fixed output voltage 1.8V and 3.3V.
• Adjustable Output Voltage from 0.8V to 5V Using an External Resistor Divider

Typical Application Circuit

Applications

• Notebook Computers
• Cordless Phones
• Cellular Phones
• Wireless Communication Equipment

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