TPL730F33-5TR 200-mA Output,1-µA Ultra-Low Quiescent Current LDO

Overview of TPL730F33-5TR and TLV70233DBVR

The TPL730F33-5TR from 3peak is a high-performance low-dropout (LDO) voltage regulator designed to provide stable, low-noise power in systems with strict voltage requirements. It features a low dropout voltage, low quiescent current, and excellent line and load regulation, making it suitable for sensitive analog circuits, sensor interfaces, and low-power designs.

The TLV70233DBVR from Texas Instruments is also a low-dropout voltage regulator that offers low output noise and high efficiency. While both devices serve similar purposes, the TPL730F33-5TR offers superior dropout voltage performance, better noise suppression, and lower quiescent current, which provides an advantage in battery-operated systems and precision applications.

Dropout Voltage

1. Dropout Voltage Performance:

   • The TPL730F33-5TR excels in low dropout voltage, offering just 40 mV at a 3.3V output. This allows for efficient use of available power and ensures stable operation even when the input voltage is very close to the output voltage.

   • The TLV70233DBVR, while also providing a low dropout voltage, typically operates at 110 mV at 3.3V output. This higher dropout voltage can result in less efficient power conversion, especially in low-voltage or battery-powered applications. The TPL730F33-5TR provides a clear advantage in maintaining stability in tight voltage margins, allowing for better performance in energy-sensitive designs.

Output Noise

2. Output Noise Characteristics:

   • The TPL730F33-5TR offers excellent output noise performance, with a noise level of 5 µVRMS in the range of 10 Hz to 100 kHz. This makes it an ideal choice for sensitive applications that require minimal electrical interference, such as analog-to-digital conversion (ADC), communication circuits, and precision sensors.

   • The TLV70233DBVR, while providing low output noise, typically has a noise level of 30 µVRMS over the same frequency range. This higher noise level can be less ideal in high-precision systems where low-noise power is essential. The TPL730F33-5TR's superior noise performance provides better results in noise-sensitive environments, ensuring cleaner power delivery.

Efficiency and Power Consumption

3. Efficiency and Power Consumption:

   • The TPL730F33-5TR is designed for high efficiency, with a typical quiescent current of 35 µA, making it highly efficient in low-power applications. The low quiescent current ensures that more power is delivered to the load and less power is consumed by the regulator itself, extending battery life in portable and battery-powered systems.

   • The TLV70233DBVR has a slightly higher quiescent current of 40 µA, which may result in slightly higher power consumption. While still low, this higher quiescent current can slightly reduce the overall power efficiency of the regulator, particularly in battery-operated applications. The TPL730F33-5TR's low quiescent current ensures that it is a more efficient option for longer battery life and energy-sensitive applications.

Load and Line Regulation

4. Load Regulation and Line Regulation:

   • The TPL730F33-5TR offers superior load regulation and line regulation performance, with a typical line regulation of 0.02% and load regulation of 0.05%. This ensures consistent output voltage under varying input conditions, making it an excellent choice for sensitive electronic circuits where precise voltage regulation is essential.

   • The TLV70233DBVR offers good line and load regulation, but typically at slightly higher values, leading to more noticeable fluctuations in output voltage when the input voltage or load conditions change. This can affect the stability and reliability of voltage-sensitive applications, where precise regulation is crucial. The TPL730F33-5TR provides better voltage stability, making it more suitable for applications requiring high reliability.

Package Options and Integration

5. Package Options and Integration:

   • The TPL730F33-5TR is available in a compact SOT-23-5 package, which is ideal for space-constrained designs. Its small size allows it to be integrated into compact power supplies, portable devices, and sensor interfaces, making it highly versatile in various applications where board space is limited.

   • The TLV70233DBVR is also available in the SOT-23-5 package, offering a similar size and flexibility. However, the TPL730F33-5TR provides superior efficiency and performance while maintaining a compact footprint, ensuring better use of space in designs with high-performance power requirements.

Temperature Range and Reliability

6. Operating Temperature Range:

   • The TPL730F33-5TR operates over a wide temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments. This wide operating range makes it ideal for use in automotive and industrial applications where the regulator must maintain stable output across a wide range of temperatures.

   • The TLV70233DBVR also operates within the -40°C to +125°C range, which is suitable for industrial and automotive environments. However, the TPL730F33-5TR’s thermal stability and better dropout performance in extreme conditions ensure that it performs more reliably in temperature-sensitive applications.

Cost-Effectiveness and Value

7. Cost-Effectiveness and Value:

   • The TPL730F33-5TR offers exceptional value due to its low dropout voltage, low quiescent current, and low output noise, providing excellent performance at a competitive price point. It is a cost-effective solution for low-noise, high-efficiency power regulation in low-power electronics.

   • The TLV70233DBVR, while a good performer, typically comes at a slightly higher price due to its slightly higher dropout voltage and higher noise levels. Given the TPL730F33-5TR's better overall performance, it provides better value for energy-sensitive and high-precision applications.

Conclusion

In conclusion, the TPL730F33-5TR from 3peak offers clear advantages over the TLV70233DBVR in key performance areas such as dropout voltage, output noise, and efficiency. With its exceptionally low dropout voltage of just 40 mV, the TPL730F33-5TR ensures stable operation in low-voltage conditions, making it ideal for battery-operated and low-power systems. Its low quiescent current and low output noise make it a superior choice for precision power regulation in sensitive analog circuits and communication modules.

For applications requiring high performance, low noise, and efficient power use, the TPL730F33-5TR offers better value and performance compared to the TLV70233DBVR. This makes it an ideal solution for engineers and designers looking to optimize performance and cost-effectiveness in power-sensitive electronics.