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HFET1™ High-Voltage Integrated Power Control Switch

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A 12 V, 18 mΩ, 5 A Integrated Power Switch with VIN Lockout Select and IDS Current Monitor Output

The SLG59H1120V is a high-performance, self-powered 18 mΩ NMOS power switch designed for all 4.5 to 12 V power rails up to 5A. Using a proprietary MOSFET design, the SLG59H1120V achieves a stable 18 mΩ RDSON across a wide input/supply voltage range and over temperature. Using Dialog’s proprietary CuFET™ technology, the SLG59H1120V package also exhibits a low thermal resistance for high-current operation. Designed to operate over a -40°C to 85°C range, the SLG59H1120V is available in a low thermal resistance, RoHS-compliant, 1.6 x 3.0 mm STQFN package.


  • Optimized for Telecommunications Equipment, High-performance Enterprise Computing, Motor Drives
  • 18 mΩ RDSON
  • Maximum Continuous Switch Current: 5 A
  • Wide Operating Supply Voltage: 4.5 V to 13.2 V
  • Automatic nFET SOA Protection
  • 3-Level, Pin-selectable VIN Overvoltage Lockout
  • Capacitor-adjustable Inrush Current Control


  • Two stage Current Limit Protection:
    • Resistor-adjustable Active Current Limit
    • Fixed 0.5A Short-circuit Current Limit
  • ON-OFF Control: Active HIGH
  • Package 1.6 x 3.0 x 0.55 mm STQFN-18


  • Enterprise Computing & Telecom Equipment 5V and 12V Point-of-Load Power Distribution
  • PCI/PCIe Adapter Cards
  • General-purpose High-voltage, Power-Rail Switching
  • Multifunction Printers
  • Fan Motor Control
STQFN-18 (1.6 x 3.0 mm)



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