100V Input, 1A, Step-Down Converter

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The MP9486 is a high-voltage, step-down, switching regulator that delivers up to 1A of continuous current to the load. It integrates a high-side, high-voltage, power MOSFET with a current limit of 2.5A, typically. The wide 4.5V to 100V input range accommodates a variety of step-down applications, making it ideal for automotive, industry, and lighting applications. Hysteretic voltage-mode control is employed for very fast response. MPS’s proprietary feedback control scheme minimizes the number of required external components.

The switching frequency can be up to 1MHz, allowing for small component size. Thermal shutdown and short-circuit protection (SCP) provide reliable and fault-tolerant operations. A 170μA quiescent current allows the MP9486 to be used in battery-powered applications.

The MP9486 is available in a SOIC-8 package with an exposed pad.

• Scooters, E-Bike Control Power Supplies
• Solar Energy Systems
• Automotive System Power
• Industrial Power Supplies
• High-Power LED Drivers

Symmetry Electronics is an authorized Monolithic Power Systems distributor.


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Wide 4.5V to 100V Input Range
Hysteretic Control: No Compensation
Up to 1MHz Switching Frequency
PWM Dimming Control Input for LED Application
Short-Circuit Protection (SCP) with Integrated High-Side MOSFET
170A Quiescent Current
Thermal Shutdown
Available in a SOIC-8 Package with an Exposed Pad


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Monolithic Power Systems Datasheet

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