MP9486A High-Voltage Step-Down Converter – 100V, 1A, SOP-8

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Brand:Generic

Description

MP9486A High-Voltage Step-Down Converter from Monolithic Power Systems (MPS) is a high-performance switching regulator designed to step down input voltages up to 100V. With integrated power MOSFET and minimal external components, it is widely used in industrial power supplies, LED lighting, and offline DC-DC converter applications.

Specification Details
Input Voltage Range 4.5V to 100V
Output Current Up to 1A
Switching Frequency 100kHz (typical)
Integrated MOSFET 1.2Ω, 1A switch
Package SOP-8
Protections Thermal shutdown, cycle-by-cycle current limiting
Efficiency Up to 85%

Applications

  • Offline DC-DC converters
  • LED drivers and lighting systems
  • Industrial automation power supplies
  • Smart meters and IoT devices
  • Battery-powered equipment

How to Use

  1. Connect input supply voltage (4.5V–100V) to VIN with a bypass capacitor close to the pin.
  2. Set output voltage using a feedback resistor divider network.
  3. Use a suitable inductor and diode rated for the load current.
  4. Place output filter capacitors near the IC for stable regulation.
  5. Ensure proper thermal dissipation when operating at high input voltages.

Why Choose MP9486A?

The MP9486A offers a compact, reliable, and cost-effective solution for high-voltage step-down conversion. Its integrated MOSFET, wide input range, and safety features make it a preferred choice for engineers building robust and efficient power supplies.

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