Overview
The LM3017LEX/NOPB is a versatile low-side NFET controller produced by Texas Instruments, designed for a variety of power management applications. This model is housed in a compact WQFN-10 package and is well-suited for use in systems requiring efficient power conversion and control. It is particularly targeted at applications such as Thunderbolt™ ports, load switches, and multiplexers, making it a valuable component in consumer electronics, industrial automation, and automotive systems. The LM3017LEX/NOPB stands out for its integration of true shutdown, input-side current limiting, and support for multiple operating modes, providing flexibility and reliability in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 5 to 18 | V | Supports 2-3 Li-ion batteries or 12V rail |
| Shutdown Current | 40 | nA | Low power consumption in shutdown mode |
| Operating Modes | Boost, Pass-through, Shutdown | - | Controlled via a single enable pin |
| Package | WQFN-10 | - | Compact and space-saving |
| Protection Features | Thermal shutdown, cycle-by-cycle current limiting, short-circuit protection, overvoltage protection, soft start | - | Ensures safe and reliable operation |
Key Features
- True shutdown functionality for complete isolation of the load from the input.
- Input-side current limiting to control inrush and short-circuit currents.
- Single enable pin supports three operating modes: boost, pass-through, and shutdown.
- Integrated charge pump for high-side NFET switch control.
- 1A push-pull driver for low-side NFETs.
Applications
The LM3017LEX/NOPB is widely used in applications requiring efficient power management and control. Its primary applications include Thunderbolt™ ports, where it ensures reliable power delivery and protection. It is also employed in load switches and multiplexers, particularly in consumer electronics and industrial systems. Additionally, its ability to support multiple operating modes and its robust protection features make it ideal for automotive electronics, where reliability and safety are paramount.
Q & A
What is the input voltage range of the LM3017LEX/NOPB?
The input voltage range is 5V to 18V, supporting 2-3 Li-ion batteries or a 12V rail.
What are the key protection features of this model?
It includes thermal shutdown, cycle-by-cycle current limiting, short-circuit protection, overvoltage protection, and soft start.
What package does the LM3017LEX/NOPB come in?
It is available in a WQFN-10 package.
How many operating modes does it support?
It supports three operating modes: boost, pass-through, and shutdown.
What is the shutdown current of the LM3017LEX/NOPB?
The shutdown current is typically 40nA.
Can it be used in automotive applications?
Yes, its robust protection features and multiple operating modes make it suitable for automotive electronics.
What is the role of the integrated charge pump?
The integrated charge pump is used for high-side NFET switch control.
What is the output driver capability for low-side NFETs?
It has a 1A push-pull driver for low-side NFETs.
Is it compatible with Thunderbolt™ technology?
Yes, it is fully compatible with Thunderbolt™ technology specifications.
What is the typical application of the LM3017LEX/NOPB?
It is commonly used in Thunderbolt™ ports, load switches, and multiplexers.
