MP20045DQ Datasheet | Monolithic Power Systems

DESCRIPTION The MP20045 is a low-dropout linear regulator supplies up to 1A current with 140m V 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. MP20045 Low Noise, 1A Linear Regulator FEATURES - Up to 1A Output Current - Low 140m V 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 - 56d B PSRR at 1k Hz - Current Limiting and Thermal Protection - 3mm×3mm QFN8 and SOIC8E Packages APPLICATIONS - Notebook puters - Cordless Telephones - Cellular Phones - Modems - Hand-Held Instruments - PDA and Palmtop puters All MPS parts are lead-free, halogen free, and adhere to the Ro HS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION R3 CIN 100k VOUT PG MP20045 FB EN COUT 2.2 Fixed Version R3 CIN 100k VOUT R1 PG MP20045 FB R2 C3(Optional) 0.1n F COUT 2.2 VOUT =1.5  (1+...