MPQ2122GJ Datasheet | Monolithic Power Systems

DESCRIPTION The MPQ2122 is an internally-pensated, 1MHz fixed-frequency, dual PWM, synchronous, step-down regulator. The MPQ2122 operates from a 2.7V-to-6V input, generates an output voltage as low as 0.608V, and has a 45µA quiescent current that makes it ideal for powering portable equipment that runs on a single cell lithium-ion (Li+) battery. The MPQ2122 integrates dual 80mΩ high-side switches and 35mΩ synchronous rectifiers for high efficiency without an external Schottky diode. Peak-current mode control and internal pensation limits the minimum number of readily-available external ponents. Fault-condition protections include cycle-by-cycle current limiting and thermal shutdown. The MPQ2122 is available in an 8-pin TSOT23-8 package. TYPICAL APPLICATION MPQ2122 6V, 2A, Low Quiescent Current Dual, SYNC Buck Regulator FEATURES - Dual 2A-Output Current - >93% Peak Efficiency - >80% Light-Load Efficiency - Wide 2.7V-to-6V Operating Input Range - 80mΩ and 35mΩ Internal Power MOSFET - 1MHz Fixed Switching Frequency - Adjustable Output from 0.608V to VIN - 180° Phase-Shifted Operation - 100% Duty-Cycle Operation - 45µA Quiescent Current - Cycle-by-Cycle Over-Current Protection - Short-Circuit Protection with Hiccup Mode - Thermal Shutdown - Available in an 8-pin TSOT23-8 Package APPLICATIONS - Small/Handhold Devices - DVD Drivers - Portable Instruments - Smartphones and Feature Phones - Battery-Powered Devices 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,...