Overview
The TPS54040DGQR is a high-efficiency synchronous buck converter manufactured by Texas Instruments. Designed for robust and versatile power management, this component is widely used in industrial, automotive, communication, and consumer electronics applications. Its broad input voltage range, adjustable output voltage, and integrated protection features make it a reliable choice for various power supply scenarios. The TPS54040DGQR is particularly valued for its efficiency, compact design, and ability to handle demanding power requirements.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage (Min) | 3.5 | V | |
| Input Voltage (Max) | 42 | V | |
| Output Voltage (Min) | 0.8 | V | Adjustable |
| Output Voltage (Max) | 39 | V | |
| Output Current | 500 | mA | |
| Switching Frequency | 100kHz ~ 2.5MHz | Hz | |
| Operating Temperature | -40°C ~ 150°C | °C | |
| Package | 10-HVSSOP | Surface Mount | |
| Topology | Buck | ||
| Output Configuration | Positive |
Key Features
- Wide input voltage range (3.5V to 42V) for versatile applications.
- Adjustable output voltage (0.8V to 39V) to meet diverse power requirements.
- High efficiency with integrated power MOSFET and synchronous rectifier.
- Multiple protection features including over-temperature, over-current, and short-circuit protection.
- Soft-start function to reduce inrush current during startup.
- Frequency dithering to minimize electromagnetic interference (EMI).
- Low quiescent current (116 µA) for improved efficiency in light-load conditions.
Applications
The TPS54040DGQR is ideal for a wide range of applications, including industrial automation, automotive electronics, communication systems, and consumer electronics. Its robust design and efficient power management capabilities make it suitable for powering microcontrollers, sensors, and other low-power devices in harsh environments. Additionally, its compact form factor and high reliability are advantageous for space-constrained designs and portable devices.
Q & A
What is the input voltage range of the TPS54040DGQR?
The input voltage range is 3.5V to 42V.
What is the maximum output current of this converter?
The maximum output current is 500mA.
Does the TPS54040DGQR support adjustable output voltage?
Yes, the output voltage is adjustable from 0.8V to 39V.
What protection features are included?
It includes over-temperature, over-current, and short-circuit protection.
What is the switching frequency range?
The switching frequency ranges from 100kHz to 2.5MHz.
What is the operating temperature range?
It operates from -40°C to 150°C.
What package type does the TPS54040DGQR use?
It uses a 10-HVSSOP surface-mount package.
Is this converter suitable for automotive applications?
Yes, its robust design makes it suitable for automotive electronics.
Does it have a soft-start function?
Yes, it includes a soft-start function to reduce inrush current.
What is the quiescent current of the TPS54040DGQR?
The quiescent current is 116 µA under light-load conditions.
