Overview
The PM8834TR is a low-dropout (LDO) linear voltage regulator designed for stable power supply in space-constrained and low-noise electronic systems.
It is widely used in portable consumer electronics, embedded control boards, and communication modules, where low output noise, fast transient response, and reliable voltage regulation are required.
This device is optimized for powering sensitive analog and digital circuits from higher-voltage rails.
Core Parameters
| Parameter | Specification |
|---|---|
| Device Type | Low-Dropout Linear Regulator |
| Input Voltage Range | Up to 7 V |
| Output Voltage | Fixed (device dependent) |
| Output Current | Up to 500 mA |
| Dropout Voltage | Low dropout at rated current |
| Quiescent Current | Very low |
| Output Noise | Low noise |
| Protection Features | Thermal shutdown, current limiting |
| Operating Temperature | -40°C to +125°C |
| Package | SOT-223 / Power package (variant dependent) |
These parameters make the device suitable for low-noise power regulation, especially where thermal performance and voltage stability are critical.
Features
- Low dropout voltage for improved efficiency
- Low quiescent current for power-sensitive designs
- High power supply rejection ratio (PSRR)
- Integrated thermal and overcurrent protection
- Stable operation with low-cost ceramic capacitors
- Compact package suitable for dense PCB layouts
Typical Application Scenarios
- Portable consumer electronics power rails
- Embedded system voltage regulation
- Communication and RF modules
- Industrial control electronics
- Post-regulation for DC-DC converters
In precision linear regulation and post-regulation stages, the TL431ACLPR is often referenced alongside the PM8834TR. As a precision adjustable shunt regulator, it provides accurate voltage reference and feedback control, helping improve output stability and regulation accuracy in low-noise power supply designs.
Performance Comparison
| Feature | PM8834TR | Standard LDO | Switching Regulator |
|---|---|---|---|
| Output Noise | Very Low | Low | High |
| Efficiency | Medium | Medium | High |
| Circuit Complexity | Very Low | Low | High |
| EMI Generation | Minimal | Minimal | Significant |
| Cost | Low | Low | Medium |
Compared with switching regulators, the PM8834TR offers significantly lower noise and simpler design, making it ideal for noise-sensitive circuits where efficiency trade-offs are acceptable.
Conclusion
The PM8834TR provides a reliable and compact solution for low-noise voltage regulation in consumer, industrial, and embedded applications. With its low dropout voltage, built-in protection features, and stable operation, it is well suited for designers seeking simplicity and dependable performance.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need. View more BLOGS you may be interested as below:
Manufacturer Profile
STMicroelectronics is a global semiconductor manufacturer delivering advanced solutions in power management, microcontrollers, analog, and mixed-signal devices. ST is recognized for its strong focus on quality, long-term availability, and innovative power technologies.
FAQ
Q1: What makes PM8834TR suitable for noise-sensitive applications?
Its low output noise and high PSRR help maintain clean and stable voltage rails.
Q2: Does PM8834TR include protection features?
Yes. It integrates thermal shutdown and current limiting for safe operation.
Q3: Can PM8834TR be used after a switching regulator?
Yes. It is commonly used as a post-regulator to reduce ripple and noise.
Q4: How can the quality of the PM8834TR be verified?
Yes. 7SEtronic follows a complete standardized inspection SOP, including label verification, visual inspection, and X-RAY analysis, providing you with reliable quality assurance reference.
For more information and to review our available inventory, please contact our team for detailed pricing, current stock levels, and any additional technical support you may need. View more BLOGS you may be interested as below: