1.0 TPS7A4700RGWR Specs: Why 4µVRMS Noise is a Game Changer
In the 2026 landscape of high-precision analog design, the TPS7A4700RGWR remains the benchmark for "clean" power. This 36V, 1A low-dropout (LDO) regulator is specifically engineered for RF and high-speed data acquisition systems where even microvolts of power supply noise can degrade SNR (Signal-to-Noise Ratio).
The defining feature is its 4µVRMS ultra-low noise floor (10Hz to 100kHz). Unlike standard LDOs that struggle with high-frequency harmonics, the TPS7A4700RGWR provides a laboratory-grade voltage rail directly on your PCB. For engineers designing 24-bit ADCs or sensitive medical sensors, this chip eliminates the need for bulky LC filters. You can access the full technical datasheet at aichiplink.com.
1.1 ANY-OUT™ Technology: Programmable Precision without Resistors
The TPS7A4700RGWR features TI's patented ANY-OUT™ configuration. By grounding specific pins, you can set the output voltage from 1.4V to 20.5V in 100mV increments without any external feedback resistors. This removes a common source of thermal noise and improves long-term stability by eliminating resistor tolerance issues.
2.0 Performance Benchmarks: 82dB PSRR for Sensitive RF Rails
Power Supply Rejection Ratio (PSRR) is the LDO's ability to filter out upstream switching noise from DC-DC converters. The TPS7A4700RGWR delivers an exceptional 82dB PSRR at 100Hz and maintains over 55dB at 10MHz.
2.1 Dropout & Thermal Efficiency: 307mV at 1A Load
Efficiency is equally robust. With a typical dropout voltage of 307mV at 1A, it allows for tight regulation even when the input voltage is close to the output. Housed in a thermally enhanced 20-VQFN (5mm x 5mm) package, it is designed to operate reliably in high-density industrial racks from -40°C to 125°C.
3.0 Critical Applications: From Medical Imaging to High-End Audio
Where standard regulators fail, the TPS7A4700RGWR excels. In 2026, we see this part dominating three key sectors:
- Medical Ultrasound: Powering sensitive analog front-ends where noise directly translates to image artifacts.
- RF Infrastructure: Clean rails for VCOs, PLLs, and high-performance mixers in 5G/6G test equipment.
- High-End Audio (Hi-Fi): Preferred by boutique audio engineers for DAC power stages to achieve "blacker" backgrounds and higher dynamic range.
4.0 Sourcing TPS7A4700RGWR: 2026 Inventory & Price Trends
As we move through 2026, the TPS7A4700RGWR remains a high-demand item due to its unique performance profile. While the analog market has stabilized, this part is often binned for long-term industrial and medical contracts, making spot-market availability tighter than standard LDOs.
"For the 2026 design cycle, the TPS7A4700RGWR is a 'stability essential.' Prices have leveled off at approximately $3.00 - $5.30 USD for bulk quantities (1,000+ units), though lead times for factory-direct orders can still reach 12 weeks. Securing NIB (New in Box) inventory from verified distributors is highly recommended."
Current stock levels for the RGW package are healthy at aichiplink.com, with same-day shipping available for most industrial regions.
Conclusion
The TPS7A4700RGWR continues to be the definitive choice for engineers who cannot compromise on power quality. Its combination of 4µVRMS noise, high PSRR, and ANY-OUT™ simplicity makes it a superior component for the most demanding RF and precision analog systems of 2026. Whether you are filtering switching ripple or powering a 32-bit DAC, the TPS7A4700 series provides the silence your signals deserve.
Eliminate noise from your 2026 designs. Get a real-time quote for TPS7A4700RGWR at AichipLink!
Written by Jack Elliott from AIChipLink.
AIChipLink, one of the fastest-growing global independent electronic components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.
We mainly source and distribute integrated circuit (IC) products of brands such as Broadcom, Microchip, Texas Instruments, Infineon, NXP, Analog Devices, Qualcomm, Intel, etc., which are widely used in communication & network, telecom, industrial control, new energy and automotive electronics.
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Frequently Asked Questions
What is the difference between TPS7A4700 and TPS7A4701?
The TPS7A4700 uses ANY-OUT™ (programmable pins) for fixed voltage steps up to 20.5V. The <strong>TPS7A4701 is the adjustable version that supports up to 34V with external feedback resistors.
Does it require a feed-forward capacitor?
In ANY-OUT™ mode, no external feed-forward capacitors or feedback resistors are required, which simplifies the BOM and reduces board space.
Can it handle 36V input?
Yes, it is rated for a maximum input of 36V (operating up to 35V), making it ideal for 24V industrial rails.
Where can I download the CAD footprint for the RGW package?
Verified Altium and Eagle footprints, along with the 3D STEP models, are available for download at aichiplink.com
What is the typical quiescent current?
The quiescent current (Iq) is approximately 1mA (typical), which is quite efficient for a high-voltage, high-power analog LDO.
