DESCRIPTION
The MP4541 is a high-efficiency, synchronous
step-down converter with integrated power
MOSFETs. The device provides 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 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
 8V to 80V 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 an SOIC-8EP Package

APPLICATIONS
 High-Voltage Battery Packs
 Industrial Power Supplies
 Printer Power Boards