DESCRIPTION

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. The output voltage is preset at 1.8V,

2.5V or 3.3V for the two different packages. An

external resistor divider can adjust the output

voltage from 0.8V to 5V.

An internal PMOS pass element allows for a low

150μA ground current, making the MP20056

suitable for battery-powered devices. Other

features include low-power shutdown, shortcircuit protection, and thermal protection. The

MP20056 is available in a 2mm×2mm 8-pin QFN

and a 5-pin TSOT23-5 packages.

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

APPLICATIONS

? Notebook Computers

? Cordless Phones

? Cellular Phones

? Wireless Communication Equipment

? Hand-Held Instruments