Overview
The LM22674MRX-ADJ/NOPB is a high-efficiency, step-down (buck) switching voltage regulator produced by Texas Instruments. It is part of the SIMPLE SWITCHER® series, designed to simplify power supply design with minimal external components. This IC is ideal for applications requiring efficient power conversion with a wide input voltage range. Its target user groups include engineers and designers in industrial automation, automotive electronics, and consumer electronics sectors. The product stands out for its high efficiency (>90%), integrated 42V N-channel MOSFET, and built-in protection features like thermal shutdown and current limiting.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 4.5 to 42 | V | |
| Output Voltage Range | 1.285 to 37 | V | Adjustable |
| Output Current | 500 | mA | |
| Switching Frequency | 500 | kHz | |
| Efficiency | >90 | % | |
| Operating Temperature | -40 to 125 | °C | |
| Package | 8-PSOP | Surface Mount | |
| Output Type | Adjustable | ||
| Protection Features | Thermal Shutdown, Current Limiting |
Key Features
- High efficiency (>90%) for reduced power loss.
- Integrated 42V N-channel MOSFET for compact design.
- Adjustable output voltage for versatile applications.
- Built-in soft start to minimize inrush current.
- Thermal shutdown and current limiting for enhanced reliability.
- Wide input voltage range (4.5V to 42V) for flexibility.
Applications
The LM22674MRX-ADJ/NOPB is widely used in various industries due to its efficiency and reliability. Key applications include:
- Industrial Automation: Powering sensors, controllers, and actuators.
- Automotive Electronics: Supporting infotainment systems, lighting, and control modules.
- Consumer Electronics: Enabling efficient power management in portable devices and home appliances.
- Telecommunications: Providing stable power for communication modules and networking equipment.
Q & A
1. What is the input voltage range of the LM22674MRX-ADJ/NOPB?
The input voltage range is 4.5V to 42V.
2. What is the maximum output current?
The maximum output current is 500mA.
3. Is the output voltage adjustable?
Yes, the output voltage is adjustable from 1.285V to 37V.
4. What is the switching frequency?
The switching frequency is 500kHz.
5. Does it have built-in protection features?
Yes, it includes thermal shutdown and current limiting.
6. What is the efficiency of this regulator?
The efficiency is greater than 90%.
7. What package does the LM22674MRX-ADJ/NOPB come in?
It comes in an 8-PSOP surface-mount package.
8. Can it operate in high-temperature environments?
Yes, it operates within a temperature range of -40°C to 125°C.
9. Is it suitable for automotive applications?
Yes, it is widely used in automotive electronics.
10. What is the purpose of the soft start feature?
The soft start feature minimizes inrush current during startup.
