Monolithic Power Systems (MPS) MP4541 Step-Down Converter
Monolithic Power Systems (MPS) MP4541 Step-Down Converter is high-efficient with integrated power MOSFETs and is available in a SOIC-8E package. This step-down converter offers 0.8A of output current (IOUT) in a buck topology from an input power supply of up to 80V. The MP4541 features Constant-On-Time (COT) control, which provides a fast transient response and facilitates loop stabilization. This Step-Down converter supports high-efficiency Pulse-Skip Mode (PSM) while operating under light-load conditions. The MP4541 offers a configurable operation frequency that can be set between 100kHz and 1MHz via an external resistor. The MP4541 features internal soft-start and loop compensation, Over-Current Protection (OCP), Short-Circuit Protection (SCP) with hiccup mode, and High-efficiency Pulse-Skip Mode (PSM) under light load conditions. This Step-Down converter offers applications like high voltage battery packs, industrial power supplies, and printer power boards.
Features
- Constant-On-Time (COT) Control
- 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
- 90% maximum operation duty cycle
Applications
- High-voltage battery packs
- Industrial power supplies
- Printer power boards
Specifications
- 8V to 80V os supply voltage range
- 1V to 30V of the output voltage range
- -40°C to 125°C operating junction temperature range
- -65°C to 150°C of the storage temperature range
- 260°C of lead temperature
- 150°C of the junction temperature
Block Diagram
Typical Application circuit
Additional Resources
Associated Evaluation Board
Monolithic Power Systems (MPS) EV4541-N-00A Buck Converter Evaluation Board
Designed to demonstrate the capabilities of MP4541 a high-efficiency step-down converter.
Pubblicato: 2022-02-03
| Aggiornato: 2022-08-12