Overview
The TPS84621RUQR is an integrated power solution from Texas Instruments, designed to provide a compact and efficient DC-to-DC conversion. This device combines a 6-A synchronous buck converter with power MOSFETs, an inductor, and passives in a low-profile BQFN package. The TPS84621 allows for a small footprint design with as few as three external components, eliminating the need for loop compensation and magnetics part selection. It is ideal for powering performance DSPs and FPGAs, offering high efficiency and robust thermal performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.95 V to 14.5 V | V |
| Output Current | Up to 6 A | A |
| Output Voltage Range | 0.6 V to 5.5 V | V |
| Switching Frequency Range | 250 kHz to 780 kHz | kHz |
| Efficiency | Up to 96% | % |
| Operating Temperature Range | –40°C to +85°C | °C |
| Thermal Impedance (Junction to Ambient) | 13 °C/W | °C/W |
| Package Type | B1QFN (RUQ) 47 pins | - |
| Package Dimensions | 9 × 15 × 2.8 mm | mm |
Key Features
- Complete Integrated Power Solution for small footprint, low-profile design
- Efficiencies up to 96%
- Wide-output voltage adjustment (0.6 V to 5.5 V) with 1% reference accuracy
- Supports parallel operation for higher current
- Optional split power rail allows input voltage down to 1.6 V
- Adjustable switching frequency (250 kHz to 780 kHz)
- Synchronizes to an external clock
- Adjustable slow start
- Output voltage sequencing and tracking
- Power good output
- Programmable undervoltage lockout (UVLO)
- Output overcurrent protection (hiccup mode)
- Overtemperature protection
- Prebias output start-up
- Meets EN55022 Class B emissions
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 TPS84621RUQR?
The input voltage range is from 2.95 V to 14.5 V.
- What is the maximum output current of the TPS84621RUQR?
The maximum output current is up to 6 A.
- What is the output voltage range of the TPS84621RUQR?
The output voltage range is from 0.6 V to 5.5 V.
- What is the switching frequency range of the TPS84621RUQR?
The switching frequency range is from 250 kHz to 780 kHz.
- What is the thermal impedance of the TPS84621RUQR?
The thermal impedance (junction to ambient) is 13 °C/W.
- What package type and dimensions does the TPS84621RUQR come in?
The package type is B1QFN (RUQ) with 47 pins, and the dimensions are 9 × 15 × 2.8 mm.
- Does the TPS84621RUQR support parallel operation?
- What are the key protection features of the TPS84621RUQR?
The device includes overcurrent protection (hiccup mode), overtemperature protection, and programmable undervoltage lockout (UVLO).
- What are some common applications of the TPS84621RUQR?
Common applications include broadband and communications infrastructure, automated test and medical equipment, and DSP and FPGA point of load applications.
- Does the TPS84621RUQR meet any specific emissions standards?
