MP2319

DESCRIPTION The MP2319 is a fully-integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP2319 offers a very compact solution that achieves 3A of continuous output current with excellent load and line regulation over a wide input range. The MP2319 has synchronous mode operation for higher efficiency over the output current load range. Constant-on-time control operation provides a 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), over-voltage protection (OVP), and thermal shutdown. The MP2319 requires a minimal number of readily available, standard, external components and is available in a space-saving, 8-pin, TSOT23 package. MP2319 3A, 18V, 650kHz, High-Efficiency, Synchronous, Step-Down Converter in 8-Pin TSOT23 FEATURES  Wide 4.5V to 18V Operating Input Range  3A Output Current  105mΩ/57mΩ Low RDS(ON) Internal Power MOSFETs  Output Adjustable from 0.8V  EN Shutdown Output Discharge  Internal Soft Start  High-Efficiency Synchronous Mode Operation  Fixed 650kHz Switching Frequency  EN and Power Good for Power Sequencing  Over-Current Protection (OCP) and Hiccup  Thermal Shutdown  Auto-Retry Over-Voltage Protection (OVP)  Available in a TSOT23-8 Package APPLICATIONS  Security Cameras  Portable Devices, xDSL Devices  Digital Set-Top Boxes  ...