MP4541

80V, 0.8A, High-Efficiency, Synchronous, Step-Down Converter with Integrated Power MOSFETS

Description

The MP4541 is a high-efficiency, synchronous, step-down converter with integrated power MOSFETs. The device provides up to 0.8A of output current (I_OUT) in a buck topology from an input power supply of up to 80V.

The MP4541 features constant-on-time (COT) control, which provides fast transient response and facilitates loop stabilization. The configurable operation frequency can be set between 100kHz and 1MHz via an external resistor. The device 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 MP4541 is available in an SOIC-8EP package.

Features & Benefits

8V to 80V Input Voltage Range
1V to 30V Output Voltage Range
90% Maximum Duty Cycle Operation
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 an SOIC-8EP Package

Active Part Numbers:

MP4541GN-Z

Evaluation Tools

EV4541-N-00A Evaluation Kit 80V, 0.8A, Synchronous Buck Converter Evaluation Board

The EV4541-N-00A is an evaluation board designed to demonstrate the capabilities of the MP4541, a high-efficiency, synchronous step-down converter with integrated high-side and low-side MOSFETs. The MP4541 provides 0.8A of output current in a buck topology from an input power supply of up to 80V.

The MP4541 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 MP4541 is available in an SOIC-8EP package.

$25.00
+ tax

Design Resources