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Overview
| Topology | Buck Converter |
| Input voltage | 4.5-7 V |
| Switching frequency | 900-1300 kHz |
| Output 1 | 1.2 V / 5 A |
| IC revision | 1.0 |
Description
The MP28275 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 5A continuous output current with excellent load and line regulation. The MP28275 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 MP28275 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.
Features
- 4.5V to 7V Operating Input Range
- 5A Output Current
- Low RDS(ON) Internal Power MOSFETs
- Proprietary Switching Loss Reduction Technique
- Fixed 1.1MHz Switching Frequency
- Sync from 300kHz to 2MHz External Clock
- Internal Compensation
- Thermal Shutdown
- Over-Current-Protection and Hiccup
- Output Adjustable from 0.8V
- Available in 3x4mm QFN14 Package
Typical applications
- Networking Systems
- Digital Set Top Boxes
- Flat Panel Television and Monitors
- Distributed Power Systems
- Notebook Systems and I/O Power
- Personal Video Recorders