Not Recommended for New Designs. Refer to MP9151The MP28255EL-LF-Z is a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 4A continuous output current over a wide input supply range with excellent load and line regulation. The MP28255EL-LF-Z operates at high efficiency over a wide output current load range.Current mode operation provides fast transient response and eases loop stabilization.Full protection features include OCP and thermal shut down.The MP28255EL-LF-Z requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package. 9icnet Electronics is an authorized Monolithic Power Systems distributor.
Feature
- Wide 4.5V to 21V Operating Input Range
- 4A Output Current
- Low RDS(on) Internal Power MOSFETs
- Proprietary Switching Loss Reduction Technique
- Fixed 500kHz Switching Frequency
- External Soft-Start
- Sync from 300kHz to 2MHz External Clock
- Internal Compensation
- Integrated Bootstrap Diode
- Over-Current Protection and Hiccup
- Thermal Shutdown
- Output Adjustable from 0.8V
- Available in 14-Pin QFN 3x4mm Package