Overview
The TPS84621RUQT from Texas Instruments is a highly integrated, synchronous buck converter designed to provide a compact and efficient power solution. This device combines a 6-A DC-to-DC converter with power MOSFETs, an inductor, and passives into a low-profile, 47-pin BQFN package. It is optimized for high-density distributed power systems and point-of-load applications, offering high efficiency and robust thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.95 to 14.5 | V |
| Output Voltage Range | 0.6 to 5.5 | V |
| Output Current | Up to 6 | A |
| Switching Frequency Range | 250 kHz to 780 kHz | kHz |
| Efficiency | Up to 96% | % |
| Operating Temperature Range | –40°C to +85°C | °C |
| Junction-to-Ambient Thermal Resistance | 13 | °C/W |
| Package Type | 47-pin BQFN | |
| Package Dimensions | 9×15×2.8 mm | mm |
Key Features
- Complete integrated power solution with minimal external components required.
- High efficiency up to 96%.
- Wide output voltage adjustment range from 0.6 V to 5.5 V with 1% reference accuracy.
- Supports parallel operation for higher current.
- Optional split power rail allowing input voltage down to 1.6 V.
- Adjustable switching frequency and synchronization to an external clock.
- Adjustable slow start and output voltage sequencing and tracking.
- Power good output and programmable undervoltage lockout (UVLO).
- Output overcurrent protection (hiccup mode) and overtemperature protection.
- Prebias output start-up and enhanced thermal performance.
Applications
- Broadband and communications infrastructure.
- Automated test and medical equipment.
- Compact PCI, PCI Express, and PXI Express.
- DSP and FPGA point of load applications.
- High-density distributed power systems.
Q & A
- What is the input voltage range of the TPS84621RUQT? The input voltage range is from 2.95 V to 14.5 V.
- What is the maximum output current of the TPS84621RUQT? The maximum output current is up to 6 A.
- What is the switching frequency range of the TPS84621RUQT? The switching frequency range is from 250 kHz to 780 kHz.
- What is the efficiency of the TPS84621RUQT? The efficiency can be up to 96%.
- What is the operating temperature range of the TPS84621RUQT? The operating temperature range is from –40°C to +85°C.
- How does the TPS84621RUQT support high current requirements? It supports parallel operation for higher current.
- What kind of thermal performance does the TPS84621RUQT offer? It offers enhanced thermal performance with a junction-to-ambient thermal resistance of 13°C/W.
- What are some of the protection features of the TPS84621RUQT? It includes output overcurrent protection (hiccup mode), overtemperature protection, and programmable undervoltage lockout (UVLO).
- What is the package type and dimensions of the TPS84621RUQT? It is a 47-pin BQFN package with dimensions of 9×15×2.8 mm.
- What are some typical applications of the TPS84621RUQT? Typical applications include broadband and communications infrastructure, automated test and medical equipment, and DSP and FPGA point of load applications.
