Product Descriptions

The MP20045 is a low-dropout linear regulator supplies up to 1A current with 140mV dropout voltage. The output voltage is set externally which ranges from 1.5V to 5V by operating from +2.5V to +5.5V input or can be preset internally from 1.5V to 5V.

An internal PMOS pass element is used to allow a low 110µA ground current, making the MP20045 suitable for battery-power devices. Other features include low-power shutdown, short-circuit and thermal protection. The MP20045 is available in 8-pin QFN (3mm x 3mm) and SOIC8E packages.

Product Features

• Up to 1A Output Current

• Low 140mV Dropout at 1A

• Low 110µA Ground Current

• Fixed Output Versions Ranging from 1.5V to 5V and Adjustable Versions

• Open Drain Power-Good Status Output

• 13µVRMS Low Noise Output

• 56dB PSRR at 1kHz

• Current Limiting and Thermal Protection

• 3mm×3mm QFN8 and SOIC8E Packages

Product Applications

• Notebook Computers

• Cordless Telephones

• Cellular Phones

• Modems

• Hand-Held Instruments

• PDA and Palmtop Computers

Product Photos

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