STMicroelectronics

LDK320M-R  

Linear & Switching Voltage Regulators

LDK320M-R Description

The LDK320M-R is a high-performance linear regulator designed for precision power management applications. Manufactured by STMicroelectronics, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a compact SOT23-5 package. It offers an adjustable output voltage ranging from 1.2V to 12V, making it suitable for a wide array of applications requiring precise voltage control. The regulator is designed to deliver a maximum output current of 200mA while maintaining a low dropout voltage of 0.35V at full load, ensuring high efficiency even at low input-to-output voltage differentials.

LDK320M-R Features

• Adjustable Output Voltage: The LDK320M-R provides an adjustable output voltage range from 1.2V to 12V, allowing it to meet the specific voltage requirements of various electronic systems.
• High Efficiency: With a dropout maximum voltage of 0.35V at 200mA, the regulator ensures high efficiency, making it ideal for battery-powered and low-voltage applications.
• Low Quiescent Current: The regulator features a low quiescent current of 90 µA, which is crucial for minimizing power consumption in standby or low-power modes.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, enabling power savings and controlled startup/shutdown sequences.
• Protection Features: The LDK320M-R includes over-current and over-temperature protection, ensuring reliable operation and safeguarding against potential faults.
• High PSRR: The regulator boasts a high power supply rejection ratio (PSRR) of 88dB at 120Hz, which decreases to 48dB at 10kHz, ensuring excellent noise filtering and stable output voltage.
• Compliance and Reliability: The LDK320M-R is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It also features a moisture sensitivity level (MSL) of 1, indicating unlimited exposure to ambient conditions without degradation.

LDK320M-R Applications

The LDK320M-R is well-suited for a variety of applications where precise voltage regulation, low power consumption, and high reliability are critical. Key applications include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and digital cameras, where low power consumption and small form factor are essential.
• Industrial Equipment: Suitable for precision instruments and control systems that require stable and adjustable power supply.
• Medical Devices: Applicable in medical equipment where reliability and low noise are paramount, ensuring accurate measurements and safe operation.
• Automotive Electronics: Useful in automotive applications where the regulator's high PSRR and protection features can withstand harsh operating conditions.

Conclusion of LDK320M-R

The LDK320M-R from STMicroelectronics stands out as a versatile and efficient linear regulator, offering adjustable output voltage, low dropout voltage, and high PSRR. Its compact SOT23-5 package and low quiescent current make it an excellent choice for space-constrained and power-sensitive applications. The inclusion of enable control and comprehensive protection features further enhances its reliability and usability. Whether in consumer electronics, industrial systems, medical devices, or automotive applications, the LDK320M-R delivers the precision and performance required for modern power management solutions.

LDK320M-R Documents

Download datasheets and manufacturer documentation for LDK320M-R

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Product Change Notification (PDF)       PRODUCT / PROCESS CHANGE INFORMATION (PDF)