STMicroelectronics

ST715C33R  

Linear & Switching Voltage Regulators

ST715C33R Description

The ST715C33R from STMicroelectronics is a high-performance, low-dropout (LDO) linear voltage regulator designed to deliver a fixed 3.3V output with a maximum current of 85mA. This surface-mount device operates with an input voltage range up to 24V, making it suitable for a wide variety of applications requiring stable voltage regulation. With a low quiescent current of 5.5 µA and a supply current of 6.5 µA (max), it ensures minimal power loss, ideal for battery-powered and energy-efficient systems. The regulator features a 1V dropout voltage at 85mA, ensuring reliable performance even with low input voltages. Packaged in a compact SOT323-5 form factor and available in tape & reel (TR), it is optimized for automated assembly processes.

ST715C33R Features

• Fixed 3.3V Output: Ensures stable voltage regulation for sensitive electronics.
• Low Dropout Voltage: 1V @ 85mA maximizes efficiency in low-input scenarios.
• Ultra-Low Quiescent Current: 5.5 µA minimizes power consumption in standby modes.
• Wide Input Range: Supports up to 24V, accommodating diverse power sources.
• High PSRR: 57dB @ 100kHz to 38dB @ 1kHz reduces noise for cleaner output.
• Robust Protection: Includes over-current and over-temperature safeguards.
• Compact SOT323-5 Package: Space-saving design for high-density PCB layouts.
• RoHS3 & REACH Compliant: Meets environmental and regulatory standards.

ST715C33R Applications

The ST715C33R is ideal for applications requiring precise, low-noise voltage regulation, including:

• Portable & Battery-Powered Devices: Such as IoT sensors, wearables, and medical devices, where low quiescent current extends battery life.
• Industrial Control Systems: Provides stable power for microcontrollers, sensors, and communication modules.
• Automotive Electronics: Suitable for infotainment, telematics, and low-power auxiliary systems.
• Consumer Electronics: Used in smart home devices, audio equipment, and handheld gadgets.
• Embedded Systems: Ensures reliable voltage supply for FPGAs, ASICs, and memory modules.

Conclusion of ST715C33R

The ST715C33R stands out as a highly efficient, compact LDO regulator with superior noise suppression and low power consumption. Its wide input range, robust protection features, and high PSRR make it a preferred choice for demanding applications in industrial, automotive, and portable electronics. The combination of low dropout voltage and ultra-low Iq ensures optimal performance in energy-sensitive designs, while its SOT323-5 package enables seamless integration into space-constrained layouts. For engineers seeking a reliable, high-performance 3.3V regulator, the ST715C33R delivers an exceptional balance of efficiency, stability, and durability.

ST715C33R Documents

Download datasheets and manufacturer documentation for ST715C33R

Datasheets :

ST715xx      

PCN Packaging :

Moisture Barrier Bag 09/May/2016      

HTML Datasheet :

ST715xx