STL56N3LLH5 Overview
The STL56N3LLH5 is a high-performance N-channel MOSFET designed for efficient power switching applications. With its low on-resistance and robust voltage handling capabilities, it supports high-speed switching while minimizing power losses. This device offers excellent thermal stability and reliable operation under demanding industrial conditions. Ideal for engineers and sourcing specialists seeking optimization in power management circuits, the STL56N3LLH5 delivers consistent performance in compact SMD packaging. For detailed manufacturer and technical support, visit IC Manufacturer.
STL56N3LLH5 Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type | N-Channel MOSFET | |
| Drain-Source Voltage (Vds) | 30 | V |
| Continuous Drain Current (Id) @ 25??C | 56 | A |
| Rds(on) Max @ Vgs=4.5V | 3.6 | m?? |
| Gate Threshold Voltage (Vgs(th)) | 1.0 – 2.5 | V |
| Total Gate Charge (Qg) | 12 | nC |
| Power Dissipation (Pd) | 90 | W |
| Operating Junction Temperature | -55 to +150 | ??C |
| Package Type | SO-8L |
STL56N3LLH5 Key Features
- Low On-Resistance: Provides efficient current conduction that reduces conduction losses, enhancing overall power efficiency in switching applications.
- High Continuous Drain Current Capability: Supports up to 56A, enabling use in high-current power stages without compromising reliability.
- Fast Switching Performance: Minimizes switching losses, which benefits high-frequency power conversion designs and improves thermal management.
- Wide Operating Temperature Range: Ensures stable operation from -55??C to +150??C, suitable for industrial environments requiring robust thermal performance.
Typical Applications
- Power management in DC-DC converters where efficient switching and thermal reliability are critical, especially in industrial and automotive power systems.
- Motor control circuits requiring high current capacity and fast switching to optimize speed and torque control.
- Load switching applications in industrial automation for reliable power delivery to sensors, actuators, and control modules.
- Battery protection and management circuits where low Rds(on) reduces energy loss and improves battery life.
STL56N3LLH5 Advantages vs Typical Alternatives
This MOSFET offers a combination of low on-resistance and high current handling, outperforming many standard devices by reducing conduction and switching losses. Its compact SO-8L package simplifies integration in space-constrained designs. Compared to typical alternatives, it ensures enhanced thermal performance and reliability, making it a preferred choice for demanding industrial power switching applications.
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STL56N3LLH5 Brand Info
The STL56N3LLH5 is manufactured by STMicroelectronics, a global leader in semiconductor solutions. Known for innovation in power management ICs and discrete components, STMicroelectronics designs this MOSFET to meet stringent industrial standards. The brand emphasizes quality, reliability, and performance, making this device suitable for engineers designing next-generation power electronics systems.
FAQ
What is the maximum drain-source voltage rating of this MOSFET?
The maximum drain-source voltage (Vds) rating for this device is 30 volts, which defines the highest voltage the MOSFET can safely block when in the off state. This rating is suitable for various low-voltage power switching applications.
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How does the low Rds(on) impact power efficiency in circuits?
Low on-resistance reduces the voltage drop across the MOSFET during conduction, decreasing power dissipation as heat. This improves overall efficiency, extends device lifespan, and reduces cooling requirements in power systems.
What package type is used for the STL56N3LLH5, and why is it important?
This MOSFET comes in an SO-8L surface-m






