Monolithic Power Systems (MPS) MP4581 Synchronous Step-Down Buck Converters
Monolithic Power Systems (MPS) MP4581 Synchronous Step-Down Buck Converters are high-efficiency converters with integrated power MOSFETs. The buck converters provide 0.8A of output current (IOUT) in a buck topology from an input power supply of up to 100V. MP4581 features constant-on-time (COT) control, providing a fast transient response and facilitating loop stabilization. The configurable operation frequency can be set between 100kHz to 1MHz via an external resistor. The MP4581 supports high-efficiency pulse-skip mode (PSM) while operating under light-load conditions. The valley current limit circuits protect against overload and short-circuit conditions. The MP4581 is available in a SOIC-8EP package.
Features
- 8V to 100V input voltage range
- 1V to 30V output voltage range
- 90% maximum operation duty cycle
- 625mΩ/265mΩ internal power MOSFETs
- Constant-On-Time (COT) control
- 100kHz to 1MHz configurable frequency
- Internal soft start and loop compensation
- Over-Current Protection (OCP)
- Short-Circuit Protection (SCP) with hiccup mode
- High-efficiency Pulse-Skip Mode (PSM) under light-load conditions
- Available in a SOIC-8EP package
- -40°C to +125°C operating temperature range
Applications
- High-voltage battery packs
- Industrial power supplies
- Printer power boards
Videos
Typical Application
Functional Block Diagram
Related Development Tool
Publicado: 2024-03-18
| Actualizado: 2024-04-23