The Texas Instruments TPS7A8500RGRT is a 4 A ultra-low-dropout linear regulator in a 3.5 mm × 3.5 mm VQFN-20 package, engineered for high-current, noise-critical loads. It delivers 4 A with 150 mV typical dropout and as little as 4.4 µVRMS output noise at 0.8 V. A 1.1 V to 6.5 V BIAS-assisted input, 1% accuracy and 40 dB PSRR at 500 kHz serve FPGA, ASIC and SerDes rails.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | TPS7A8500RGRT |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | TPS7A8500 |
| Package / Case | VQFN-20 (RGR), 3.5 mm × 3.5 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to 125°C |
| Power Supply | 1.1 V to 6.5 V input with BIAS (1.4 V to 6.5 V without); 0.8 V to 5.0 V output |
| Output Current | 4 A |
| Output Voltage | 0.8 V to 5.0 V (adjustable) / 0.8 V to 3.95 V (ANY-OUT) |
| Dropout Voltage | 150 mV typ at 4 A (240 mV max) |
| Output Noise | 4.4 µVRMS at 0.8 V / 8.4 µVRMS at 5.0 V |
| PSRR | 40 dB at 500 kHz |
| Input Voltage | 1.1 V to 6.5 V (with BIAS rail) |
| Output Accuracy | 1% |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 4 A output with 150 mV typical dropout
- Ultralow 4.4 µVRMS output noise at 0.8 V output
- ANY-OUT programmable output from 0.8 V to 3.95 V without external resistors
- 1% output accuracy over line, load and temperature
- 40 dB PSRR at 500 kHz
- Adjustable soft-start in-rush control
- Open-drain power-good output and remote sensing
Applications
- High-current FPGA and ASIC core rails
- SerDes and high-speed data links
- RF components and amplifiers
- Test and measurement equipment
- Medical and video systems
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
CHIPER sources brand-new, unused components and provides quality inspection, shortage and long lead-time sourcing, and one-stop BOM procurement. Every part is verified before shipment.
FAQ
How does the TPS7A8500RGRT differ from the TPS7A8300 series?
The TPS7A8500 doubles the output current to 4 A with 150 mV typical dropout, whereas the TPS7A8300 is a 2 A device with 125 mV maximum dropout.
What output capacitor does the TPS7A8500RGRT require for stability?
It is stable with a 47 µF or larger ceramic output capacitor, which also contributes to its low output noise.