Skip to main content


High Voltage GreenFET Load Switch


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

The SLG59H1127V is a high-performance, self-powered 15 mΩ NMOS load switch designed for all 4.5 to 12 V power rails up to 4 A. Using a proprietary MOSFET design, the SLG59H1127V achieves a stable 15 mΩ RDSON across a wide input voltage range. In combining novel FET design and copper pillar interconnects, 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 mm x 3.0 mm STQFN package.


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


Maximum Continuous 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 0.5 A Short-circuit Current Limit

Open Drain FAULT Signaling

Open-drain Power Good (PG) Signaling

ON-OFF Control: Active HIGH


Enterprise Computing & Telecom Equipment 5 V and 12 V 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)

Stay connected

Get in touch with us directly through our worldwide sales offices, or contact one of our global distributors and representatives.

Inquiries Distributors and Representatives Register for newsletters
Name Date Version
SLG59H1127V Datasheet (1.16 MB)
Application notes
Name Date Version
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
SLG59H1127V LTspice Model (9.77 KB)
SLG59H1127V PSpice Model (3.99 KB)
Video thumbnail, click to open and play

Introduction to GreenFET Load Switches

Video thumbnail, click to open and play

Introduction to High Voltage GreenFET Load Switches

Video thumbnail, click to open and play

Load Switch Webinar Part 1

Video thumbnail, click to open and play

Load Switch Webinar Part 2


A 4 mm², 12 V, 15 mΩ, 4 A load switch with VIN overvoltage protection, internal nFET SOA protection, and Power Good Output. Package: STQFN-18 (1.6 x 3.0 mm).

Price table:

Qty 100-2,999 3,000+
Price $0.545 $0.436
HFET1 Evaluation Board

Evaluation Board for SLG59H1127V

SLG59H1127V Evaluation Board