Overview
The TPS5431DDARG4, produced by Texas Instruments, is a high-performance step-down converter belonging to the TPS543x family. This device is designed to provide efficient and reliable power conversion with a wide input voltage range and high output current capability. It is particularly suited for applications requiring a compact, high-efficiency power solution.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 5.5 to 23 | V |
| Output Current (Continuous) | Up to 3A | A |
| Output Current (Peak) | Up to 4A | A |
| Output Voltage Range | Adjustable down to 1.22V | V |
| Switching Frequency | Fixed 500kHz | kHz |
| Operating Junction Temperature | -40 to 125 | °C |
| Package Type | 8-pin SO PowerPAD™ | |
| Junction-to-Ambient Thermal Resistance | 42.3 | °C/W |
Key Features
- Wide input voltage range: 5.5V to 23V
- Up to 3A continuous (4A peak) output current
- High efficiency up to 95% enabled by 100mΩ integrated MOSFET switch
- Wide output voltage range: adjustable down to 1.22V with 1.5% initial accuracy
- Internal compensation minimizes external parts count
- Fixed 500kHz switching frequency for small filter size
- Improved line regulation and transient response by input voltage feedforward
- System protected by overcurrent limiting, overvoltage protection, and thermal shutdown
- Available in small thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
Applications
- Consumer electronics: set-top boxes, DVD players, LCD displays
- Industrial and car audio power supplies
- Battery chargers and high-power LED supplies
- 12V and 24V distributed power systems
Q & A
- What is the input voltage range of the TPS5431DDARG4?
The input voltage range of the TPS5431DDARG4 is 5.5V to 23V.
- What is the maximum continuous output current of the TPS5431DDARG4?
The maximum continuous output current is up to 3A, with a peak current of up to 4A.
- What is the switching frequency of the TPS5431DDARG4?
The switching frequency is fixed at 500kHz.
- What is the operating junction temperature range of the TPS5431DDARG4?
The operating junction temperature range is -40°C to 125°C.
- What type of package is the TPS5431DDARG4 available in?
The TPS5431DDARG4 is available in an 8-pin SO PowerPAD™ integrated circuit package.
- What are some of the key protection features of the TPS5431DDARG4?
The device is protected by overcurrent limiting, overvoltage protection, and thermal shutdown.
- How efficient is the TPS5431DDARG4?
The TPS5431DDARG4 can achieve high efficiency up to 95% due to its integrated 100mΩ MOSFET switch.
- What is the typical application of the TPS5431DDARG4 in consumer electronics?
In consumer electronics, it is commonly used in set-top boxes, DVD players, and LCD displays.
- Can the TPS5431DDARG4 be used in industrial applications?
Yes, it can be used in industrial and car audio power supplies, as well as in battery chargers and high-power LED supplies.
- How can I design a custom power solution using the TPS5431DDARG4?
You can create a custom design using the WEBENCH® Power Designer tool provided by Texas Instruments.
