Overview
The LMR14030SSQDDAQ1 is a high-performance, automotive-grade, 40V, 3.5A step-down (buck) converter manufactured by Texas Instruments. Designed for demanding automotive and industrial applications, this integrated circuit features a high-side MOSFET and offers a wide input voltage range from 4V to 40V. Its compact 8-pin HSOIC PowerPAD package and advanced features make it an ideal solution for power regulation in systems requiring high efficiency and reliability. The LMR14030SSQDDAQ1 is particularly suited for automotive battery regulation, industrial power supplies, and telecom systems, providing robust performance in harsh environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4 to 40 | V | |
| Output Current | 3.5 | A | |
| Switching Frequency | 200k to 2.5M | Hz | Adjustable |
| Quiescent Current | 40 | µA | |
| High-Side MOSFET RDS(on) | 90 | mΩ | |
| Operating Temperature | -40 to 125 | °C | |
| Shutdown Current | 1 | µA | |
| Package | HSOIC-8 PowerPAD | ||
| Protection Features | Overvoltage, Short Circuit, Thermal | ||
| Compliance | AEC-Q100 | Automotive Grade |
Key Features
- Wide input voltage range (4V to 40V) for versatile applications.
- High efficiency with integrated high-side MOSFET (90mΩ RDS(on)).
- Adjustable switching frequency (200kHz to 2.5MHz) for optimized performance.
- Ultra-low quiescent current (40µA) for battery-powered systems.
- Built-in protection features including overvoltage, short circuit, and thermal shutdown.
- Compact 8-pin HSOIC PowerPAD package for space-constrained designs.
- Compliant with AEC-Q100 standards for automotive applications.
Applications
The LMR14030SSQDDAQ1 is widely used in automotive and industrial applications. In automotive systems, it is ideal for battery voltage regulation, ensuring stable power delivery to electronic control units (ECUs) and infotainment systems. In industrial settings, it provides efficient power conversion for motor drives, PLCs, and other equipment. Additionally, its robust design makes it suitable for telecom and data communication systems, where reliable power regulation is critical. Its wide input voltage range and high efficiency also make it a preferred choice for general-purpose power supplies.
Q & A
1. What is the input voltage range of the LMR14030SSQDDAQ1?
The input voltage range is 4V to 40V.
2. What is the maximum output current supported?
The maximum output current is 3.5A.
3. Is the switching frequency adjustable?
Yes, the switching frequency is adjustable from 200kHz to 2.5MHz.
4. What is the quiescent current of the device?
The quiescent current is 40µA.
5. Does the LMR14030SSQDDAQ1 support external clock synchronization?
Yes, it supports synchronization with an external clock.
6. What protection features are included?
It includes overvoltage, short circuit, and thermal protection.
7. Is this device compliant with automotive standards?
Yes, it is AEC-Q100 compliant.
8. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
9. What package does the LMR14030SSQDDAQ1 come in?
It comes in an 8-pin HSOIC PowerPAD package.
10. Can it be used in battery-powered systems?
Yes, its ultra-low quiescent current makes it suitable for battery-powered applications.
