You are here



HFET1™ High-Voltage Integrated Power Control Switch

A 12 V, 15 mΩ, 4 A Integrated Power Switch with Internal VIN Lockout, FAULT & Power Good Output

The SLG59H1127V is a high-performance, self-powered 15 mΩ NMOS power switch designed for all 4.5 to 12 V power rails up to 4A. Using a proprietary MOSFET design, the SLG59H1127V achieves a stable 15 mΩ RDSON across a wide input voltage range. Using Dialog’s proprietary CuFET™ technology, the SLG59H1127V package also exhibits a low thermal resistance for high-current operation. Designed to operate over a -40°C to 85°C range, the SLG59H1127V 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
  • 15 mΩ RDSON
  • Maximum Continuous Switch Current: 4 A
  • Wide Operating Supply Voltage: 4.5 V to 13.2 V
  • Automatic nFET SOA Protection
  • Internal 14.4 V VIN Overvoltage Protection
  • Capacitor-adjustable Inrush Current Control
  • Two stage Current Limit Protection:
    • Resistor-adjustable Active Current Limit


  • Fixed 0.5A Short-circuit Current limit
  • Open Drain FAULT Signaling
  • Open-drain Power Good (PG) Signaling
  • 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)



Simulation Macromodels

Layout Guides


Our customer support portals provide you with easy access to additional technical documentation including datasheets and application notes. For added technical support or information on how to buy, contact us directly.

Buy now Get support Request samples