MP8771集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

DESCRIPTION

The MP8771 is a fully integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. The MP8771 offers a very compact solution that achieves 10A of continuous output current with excellent load and line regulation over a wide input range. The MP8771 uses synchronous mode operation for higher efficiency over the output current load range.

Constant-on-time (COT) control operation 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 MP8771 requires a minimal number of readily available, standard, external components and is available in a space-saving QFN-16 (3mmx3mm) package.

FEATURES

 Wide 3V to 18V Operating Input Range

 10A Output Current

 17mΩ/8mΩ Low RDS(ON) Internal Power MOSFETs

 100μA Quiescent Current

 Output Adjustable from 0.6V

 High-Efficiency Synchronous Mode Operation

 Pre-Biased Start-Up

 Fixed 700kHz Switching Frequency

 External Programmable Soft Start-Up Time

 Enable (EN) and Power Good (PG) for Power Sequencing

 Over-Current Protection (OCP) and Hiccup

 Thermal Shutdown

 Available in a QFN-16 (3mmx3mm) Package

 The MPL-AY1265 Inductor Series Matches Best Performance

APPLICATIONS

 Security Cameras

 Portable Devices, XDSL Devices

 Digital Set-Top Boxes

 Flat-Panel Television and Monitors

 General Purposes