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Monolithic Power Systems MPQ28261 | Demoboard MPQ28261EVB
21V, 3A 500kHz Synchronous Step-down Converter EV Board
Overview
| Topology | Buck Converter |
| Input voltage | 7-21 V |
| Output 1 | 1.2 V / 3 A |
| IC revision | 1.0 |
Description
The EVQ28261-L-00A is for demonstrating MPS’s MPQ28261, a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. MPQ28261 offers a very compact solution to achieve 3A continuous output current over a wide input supply range with excellent load and line regulation. The MPQ28261 operates athigh efficiency over a wide output current load range.
Current mode operation provides fast transient response and eases loop stabilization. The full protection features include OCP and thermalshutdown.
The MPQ28261 requires a minimum number of readily available standard external components and comes in a space saving 3x4mm 14-pinQFN package.
Features
- Wide 7V to 21V Operating Input Range
- 0.6V Internal Reference with 2% Accuracy
- 3A Output Current
- Low Rds(ON) Internal Power MOSFETs
- Fixed 500kHz Switching Frequency
- External Soft Start
- OCP and Thermal Shutdown
- Available in 14-pin QFN3x4 Package.
Typical applications
- Cable Modems
- Set Top Boxes
- DSL Modems