MP2322

MP2322 1A, 3-22V, 5μA IQ, Synchronous, Step-Down Converter in 1.5x2mm QFN DESCRIPTION The MP2322 is a synchronous, rectified, stepdown, switch-mode converter with built-in internal power MOSFETs and high light-load efficiency. The MP2322 offers a very compact solution that achieves 1A of continuous output current with excellent load and line regulation over a wide input supply range. The MP2322 switching edge is optimized for EMI reduction. Constant-on-time (COT) control provides seamless mode transition and a fast load transient response. Full protection features include over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown. The MP2322 requires a minimal number of readily available, standard, external components and is available in a space-saving QFN-8 (1.5mmx2mm) package. FEATURES  Wide 3V to 22V Operating Input Range  5µA Low IQ  1A Load Current  260mΩ/120mΩ RDS(ON) Internal Power MOSFETs  High Efficiency from 100µA to 1A Load during VIN from 4V to 22V  Power-Save Mode (PSM) in Light-Load Condition  1.25MHz Fixed Switching Frequency during CCM  TON Extension to Support Large Duty Cycles  Power Good (PG) Indication  EN Shutdown Output Discharge  OCP and OVP and Hiccup  Output Adjustable from 0.6V  Available in a QFN-8 (1.5mmx2mm) Package APPLICATIONS  IOT  Home Automation, Home Security  Single- or Multi-Cell Li-Ion Battery Systems  Multi-Cell Dry Battery Systems  12V Input Power Rails  White Goods All MPS parts are lead-fre...