Monolithic Power Systems MP8124

Description

EV8124-D-00A Evaluation Board is designed to demonstrate the capability of MP8124. MP8124 is a highly integrated voltage regulator to provide efficient, low noise power and the interface signals to a satellite receiver’s Low Noise Block (LNB). It generates 22kHz tone signal compatible with DiSEqC 1.x. The MP8124 integrates a current-mode boost regulator followed by a tracking linear regulator. The boost regulator provides a clean power source which is 1V higher than the final output voltage while the tracking linear regulator protects the output against overloads or shorts. The MP8124 provides a number of features including bus voltage selection, over current protection and 22kHz tone shaper from external signal. It offers a simple solution with low component count and high efficiency.

Features

Compatible with DiSEqC 1.x

• 600mA Accurate Current Limit
• 8V-to-14V Input Voltage
• 40V Output Voltage Rating
• Low-Noise LDO Output
• High Efficiency for Light Load, >85% at40mA
• High Frequency for Small Component Size
• Build in 22kHz Signal Shaper
• Selectable Output Voltage
• OCP, SCP Protection
• Boost OVP Protection
• Over Temperature Protection
• 14pin QFN-14 (2mmx3mm) Package

Typical applications

• LNB Power Supply and Control for Satellite Set Top Boxes
• TV Satellite Receivers/PC Card Satellite Receivers

More information

• IC product information