The Texas Instruments TPS7A4700RGWR is a 1 A ultra-low-noise LDO in a 20-pin VQFN package that delivers an adjustable 1.4 V to 20.5 V output from a 3 V to 36 V input. With around 4.17 µVrms output noise and high PSRR, it is built for precision analog and RF supply rails.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | TPS7A4700RGWR |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | TPS7A4700 |
| Package / Case | 20-VQFN |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to +125°C |
| Power Supply | 3 V to 36 V (adjustable 1.4 V to 20.5 V output) |
| Output Current | 1 A |
| Output Voltage | Adjustable 1.4 V to 20.5 V |
| Output Noise | 4.17 µVrms |
| PSRR | 82 dB at 100 Hz |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 1 A ultra-low-noise LDO
- Adjustable 1.4 V to 20.5 V output
- 4.17 µVrms output noise
- High PSRR for clean analog rails
- Wide 3 V to 36 V input range
- 20-pin VQFN package
Applications
- Precision analog supplies
- RF and instrumentation rails
- Post-regulation after switching supplies
- Medical and test equipment
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
Why is the TPS7A4700 described as ultra-low-noise?
It achieves around 4.17 µVrms output noise, making it suitable for precision analog and RF rails.
What input voltage does it accept?
It accepts a wide 3 V to 36 V input and provides an adjustable 1.4 V to 20.5 V output.