L5991D Current Mode Switching PWM Controller

SKU: D13-13-13
In Stock
EGP 190.000 exc. vat
In Stock

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L5991D Specifications:

  • Type: High-Speed Switching Power Supply Controller
  • Model: L5991D
  • Package: SO-20 (Small Outline 20-pin)
  • Input Voltage Range: 7.6V to 18V
  • Output Voltage Range: Adjustable
  • Switching Frequency: Programmable up to 600kHz
  • Output Current: Dependent on external components and configuration
  • High-Speed PWM Controller: For efficient power conversion
  • Soft-Start Function: Programmable for reduced inrush current
  • Overcurrent Protection: Adjustable threshold
  • Synchronization Capability: Allows synchronization with an external clock
  • Reference Voltage: 5V ±1% precision reference
  • Thermal Shutdown: Protects against overheating
  • Operating Temperature Range: -40°C to +150°C
  • Datasheet


  • High Efficiency: Optimized for minimal power loss in high-speed switching applications.
  • Flexible Configuration: Adjustable output voltage and programmable switching frequency.
  • Soft-Start: Reduces stress on components by gradually increasing the output voltage.
  • Protection Mechanisms: Overcurrent protection and thermal shutdown ensure reliability and safety.
  • Synchronization: Can be synchronized with an external clock for multi-phase operation.
  • Precision Reference: Stable 5V reference voltage for accurate output control.


  • DC-DC converters
  • Power supplies for microprocessors
  • Distributed power systems
  • Industrial and automotive power management
  • High-efficiency power conversion

Ensure to handle and design circuits with the L5991D according to the manufacturer’s guidelines to achieve optimal performance and longevity.


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L5991D Current Mode Switching PWM Controller EGP 190.000 exc. vat
In Stock