STMicroelectronics ST715M25R Linear Voltage Regulator 2.5V Fixed Output 85mA SOT-23-5 Package

STMicroelectronics ST715M25R: Precision Linear Voltage Regulation for Modern Electronics

In today's rapidly evolving electronics landscape, reliable power management solutions are critical for ensuring optimal performance across diverse applications. The STMicroelectronics ST715M25R linear voltage regulator emerges as a versatile and efficient component designed to deliver stable 2.5V fixed output voltage with exceptional accuracy and minimal power loss. This SOT-23-5 packaged device combines advanced technical specifications with robust protection features, making it an ideal choice for engineers developing compact, high-reliability systems.

Advanced Technical Performance

Engineered for precision applications, the ST715M25R operates with a maximum input voltage of 24V while maintaining a fixed output voltage of 2.5V. Its innovative design achieves a remarkably low dropout voltage of just 1V at 85mA output current, enabling efficient operation even in low-voltage environments. The device's exceptional quiescent current specification of 5.5µA (typical) and 6.5µA (maximum) ensures minimal power consumption, making it particularly suitable for battery-powered applications where energy efficiency is paramount.

Comprehensive Protection Features

Built with industrial-grade reliability in mind, this linear regulator incorporates essential protection mechanisms to ensure robust operation in demanding environments. Integrated over-temperature and over-current protection circuits safeguard against potential damage from thermal overload or electrical faults. These features make the ST715M25R particularly well-suited for automotive, industrial control, and portable electronics applications where system longevity and failure prevention are critical considerations.

The device maintains stable performance across the extended operating temperature range of -40°C to 125°C, ensuring reliability in both extreme cold and hot operating conditions. Its surface-mount SOT-23-5 package (SC-74A) facilitates space-efficient PCB layouts while maintaining excellent thermal dissipation characteristics.

Design Flexibility and Application Versatility

Engineers will appreciate the ST715M25R's combination of high power supply rejection ratio (PSRR) and fast transient response capabilities. The 57dB PSRR at 100kHz and 38dB at 1kHz enables effective noise suppression from power sources, ensuring clean voltage delivery to sensitive downstream components. This makes it particularly valuable in applications such as precision analog circuits, RF modules, and sensor interfaces where signal integrity is crucial.

While designed for fixed 2.5V output, the regulator's compact footprint and high performance characteristics allow implementation in a wide range of applications including:

• Portable consumer electronics
• Automotive sensor systems
• Industrial measurement equipment
• Wireless communication modules
• Medical monitoring devices

Technical Excellence in Compact Packaging

The ST715M25R's SOT-23-5 package combines miniature dimensions with superior thermal performance, enabling efficient heat dissipation even in densely populated PCB designs. This packaging solution maintains compatibility with standard surface-mount assembly processes while minimizing board space requirements. The device's low output voltage noise and excellent line/load regulation characteristics further enhance its suitability for precision electronics applications.

When integrating the ST715M25R into your design, engineers should consider standard best practices for linear regulator implementation, including appropriate input/output capacitor selection and thermal management considerations. The device's low quiescent current and high PSRR characteristics make it particularly effective in applications where minimizing power consumption and maximizing noise rejection are critical design priorities.

Tags: linear voltage regulator, fixed output regulator, SOT-23 packaging, low dropout voltage, electronic component solutions