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High Voltage GreenFET Load Switch


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

The SLG59H1120V is a high-performance, self-powered 18 mΩ NMOS load switch designed for all 4.5 to 12 V power rails up to 5 A. Using a proprietary MOSFET design, the SLG59H1120V achieves a stable 18 mΩ RDSON across a wide input voltage range and over temperature. In combining novel FET design and copper pillar interconnects, 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 mm x 3.0 mm STQFN package.


Optimized for Telecommunications Equipment, High-performance Enterprise Computing, Motor Drives


Maximum Continuous 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 0.5 A Short-circuit Current Limit

ON-OFF Control: Active HIGH


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 mm x 3.0 mm x 0.55 mm)

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Name Date Version
SLG59H1120V Datasheet (929.59 KB)
Application notes
Name Date Version
AN-1112 Improving High Voltage GreenFET's VIN Transient Protection(375.58 KB)
AN-CM-268 Applying Dialog GreenFET Load Switches in Bidirectional Applications(389.54 KB)
AN-CM-272 Extending Dialog's GreenFET Load Switch Maximum Operating Current(943.55 KB) 22/02/2019 1.0
Simulation Macromodels
Name Date Version
SLG59H1120V LTspice Model (9.76 KB)
SLG59H1120V PSpice Model (4.02 KB)

A 12 V, 18 mΩ, 5 A Load Switch with VIN Lockout Select and IDS Current Monitor Output. Package: STQFN‑18 (1.6 x 3.0 mm).

Price table:

Qty 100-2,999 3,000+
Price $0.617 $0.493
HFET1 Evaluation Board

Evaluation Board for SLG59H1120V

SLG59H1120V Evaluation Board