Overview: Ultra-Low-Noise Linear Regulation for Precision Applications
Il TPS73701DCQ from Texas Instruments is a low-dropout (LDO) linear regulator optimized for high-precision, low-noise analog applications. Designed in a compact SOT-223 package, this device delivers excellent performance with minimal external components. With an adjustable output voltage and a wide input voltage range (1.7 V to 5.5 V), the TPS73701DCQ is engineered to meet the stringent requirements of modern analog and RF systems, where ripple and transient performance are critical.
Technical Performance and Real-World Benefits
High PSRR and Low Noise Performance
With a high Rapporto di reiezione dell'alimentazione (PSRR) and output noise as low as 16 µV RMS, the TPS73701DCQ ensures clean, ripple-free voltage supply to sensitive analog front ends, ADCs, DACs, and RF modules. These attributes make it ideal for systems requiring low signal interference.
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Low Dropout and Fast Start-Up
Operating with a dropout of only 340 mV at 1 A load current, this LDO maintains regulation even under low headroom conditions. It also features a fast start-up time, beneficial in systems where boot timing matters, such as industrial sensors or RF transceivers.
Small Footprint, Big Performance
Housed in the industry-standard SOT-223 package, the TPS73701DCQ offers thermal efficiency and layout flexibility. Designers can save board space while ensuring robust thermal performance in high-current loads.
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Why TPS73701DCQ Excels Over Competitors
- Output Noise: Only 16 µV RMS – significantly lower than many standard LDOs.
- Adjustable Output: Allows precise voltage tuning for target systems.
- Dropout Voltage: Lower than typical devices at similar load currents.
- Thermal Performance: Efficient SOT-223 package for better heat dissipation.
- Flexibility: Wide input range supports multiple power rail topologies.
Parametri tecnici
- Input Voltage Range: 1.7 V to 5.5 V
- Output Current: Up to 1 A
- Output Voltage: Adjustable (0.8 V to 5 V)
- Dropout Voltage: 340 mV @ 1 A
- Output Noise: 16 µV RMS (10 Hz–100 kHz)
- Quiescent Current: 280 µA (typical)
- PSRR: 68 dB @ 10 kHz
- Pacchetto: SOT-223
Applicazioni tipiche
- Low-noise analog signal conditioning
- Wireless communication systems
- RF front-end modules
- Medical instrumentation
- Portable precision measurement tools
About Texas Instruments
As a trusted leader in analog and embedded processing solutions, Texas Instruments delivers exceptional quality, longevity, and support. The TPS73701DCQ is backed by TI’s extensive application resources and commitment to innovation.
Domande frequenti
What is the main benefit of using the TPS73701DCQ?
Its low output noise and high PSRR provide superior voltage regulation, ideal for powering sensitive analog circuitry and reducing signal contamination in critical systems.
📩 Contattaci
Can this regulator support adjustable output voltages?
Yes, the TPS73701DCQ supports an adjustable output from 0.8 V up to 5 V, giving designers flexibility to match system-level requirements.
How does the dropout voltage affect performance?
A lower dropout voltage (340 mV at 1 A) allows the regulator to operate efficiently with minimal input-to-output voltage headroom, useful in power-sensitive designs.
What makes the SOT-223 package suitable for this LDO?
SOT-223 provides a good balance between size and thermal performance, enabling effective heat dissipation in compact board designs without the need for bulky heat sinks.
Where is the TPS73701DCQ typically used?
It’s commonly used in RF and analog front-end circuits, portable instrumentation, and medical devices where low noise and stable voltage regulation are essential.
