STMicroelectronics

LDK715M42R

LDK715M42R Description

The LDK715M42R is a high-performance linear voltage regulator designed by STMicroelectronics. It features a fixed output voltage of 4.2V and is capable of delivering a maximum output current of 85mA. This regulator is designed for surface mount applications and comes in a compact SOT23-5 package. The LDK715M42R is optimized for low power consumption, with a maximum supply current of 8.5 µA and a quiescent current of 7 µA. It offers excellent power supply rejection ratio (PSRR), ranging from 57dB at 1kHz to 38dB at 100kHz, ensuring stable output voltage under varying input conditions.

LDK715M42R Features

• Fixed Output Voltage: The LDK715M42R provides a stable 4.2V output, making it suitable for applications requiring a precise and consistent voltage supply.
• Low Dropout Voltage: With a maximum dropout voltage of 1V at 85mA, this regulator can maintain its output voltage even when the input voltage is close to the output voltage, enhancing efficiency in low-input voltage scenarios.
• Low Power Consumption: The regulator's maximum supply current of 8.5 µA and quiescent current of 7 µA ensure minimal power loss, making it ideal for battery-powered and energy-sensitive applications.
• Protection Features: The LDK715M42R includes over-current and over-temperature protection, safeguarding the device and connected circuits from potential damage.
• High PSRR: The regulator offers a power supply rejection ratio of 57dB at 1kHz and 38dB at 100kHz, ensuring minimal noise and ripple on the output voltage.
• Compliance and Packaging: The LDK715M42R is REACH unaffected and RoHS3 compliant, ensuring environmental and regulatory compliance. It is available in a tape & reel (TR) package, facilitating easy handling and assembly in manufacturing processes.

LDK715M42R Applications

The LDK715M42R is well-suited for a variety of applications due to its low power consumption, stable output voltage, and compact size. Some specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics and battery-operated systems where energy efficiency and long battery life are critical.
• Low-Power Systems: Suitable for applications requiring low power consumption, such as IoT devices, wearable technology, and remote sensors.
• Consumer Electronics: Can be used in devices like smartphones, tablets, and other consumer electronics that require stable and efficient power regulation.
• Industrial Applications: Applicable in industrial control systems, instrumentation, and other applications where reliable power supply and protection features are essential.

Conclusion of LDK715M42R

The LDK715M42R from STMicroelectronics is a versatile and efficient linear voltage regulator designed for low power consumption and stable performance. Its fixed 4.2V output, low dropout voltage, and high PSRR make it an excellent choice for a wide range of applications, particularly those requiring precise voltage regulation and minimal power loss. The inclusion of over-current and over-temperature protection ensures robustness and reliability, while its compact SOT23-5 package and surface mount design facilitate easy integration into modern electronic systems. Whether for battery-powered devices, low-power systems, or industrial applications, the LDK715M42R stands out as a reliable and efficient solution.