Download MPQ2122GJ Datasheet PDF
Monolithic Power Systems
MPQ2122GJ
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 -...