Monolithic Power Systems MP2321
The MP2321 is a fully-integrated, highefficiency, synchronous, step-down, switchmode converter with 40μA of quiescent current. The MP2321 achieves 2A of continuous output current over a wide input supply range with excellent load and line regulation and can operate with high efficiency over a wide output current load range. The MP2321 is optimized for battery-operated applications and applications requiring high light-load efficiency.DESCRIPTION
With constant-on-time (COT) control, the MP2321 provides very fast transient response, easy loop design, and very tight output regulation. Full protection features include short-circuit protection (SCP), over-current protection (OCP), under-voltage protection (UVP), and thermal shutdown. The MP2321 requires a minimal number of readily available, standard, external components and is available in a space-saving QFN-14 (2mmx3mm) package.FEATURES
● 4V to 19V Operating Input Range● 2A Output Current
● 40μA Quiescent Current
● Output Adjustable from 0.6V
● 110mΩ/40mΩ High-Side/Low-Side RDS(ON) for Internal Power MOSFETs
● Power Good Indicator
● Programmable Soft-Start Time
● Forced PWM or Auto PFM/PWM Mode Selectable
● Programmable Switching Frequency
● Thermal Shutdown
● Short-Circuit Protection: Hiccup Mode
● Available in a QFN-14 (2mmx3mm) Package
APPLICATIONS
● Tablet PCs● Solid State Drives
● Gaming
● Battery-Operated
APPLICATIONS
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive.