STMicroelectronics

LDK120C29R

LDK120C29R Description

The LDK120C29R is a high-performance linear regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This regulator is part of the Power Management Integrated ( CircuitPMIC) category and is ideal for applications requiring a stable and efficient power supply. The LDK120C29R features a fixed output voltage of 2.9V and can deliver a maximum output current of 200mA. It operates within an input voltage range up to 5.5V and boasts a low dropout voltage of 0.3V at 200mA, making it suitable for low-voltage applications.

The regulator is designed with a positive output configuration and includes an enable control feature, allowing for precise power management. It also features robust protection mechanisms, including over-current and over-temperature protection, ensuring reliable operation under various conditions. The LDK120C29R is housed in a compact SOT323-5 package, making it ideal for space-constrained designs. It is available in a surface-mount configuration, facilitating easy integration into modern electronic systems.

LDK120C29R Features

• Fixed Output Voltage: The LDK120C29R provides a stable output voltage of 2.9V, ensuring consistent power delivery to sensitive electronic components.
• High Efficiency: With a low dropout voltage of 0.3V at 200mA, the regulator maintains high efficiency even at low input voltages, reducing power loss and improving overall system performance.
• Low Quiescent Current: The regulator operates with a quiescent current of only 60 µA, minimizing power consumption during standby or low-load conditions.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator's operation, enabling power-saving modes and enhancing system flexibility.
• Protection Features: Over-current and over-temperature protection mechanisms safeguard the regulator and connected components from damage due to excessive current or thermal stress.
• Compact Packaging: The SOT323-5 package offers a small footprint, making it suitable for applications where space is a critical consideration.
• Compliance: The LDK120C29R is REACH unaffected and RoHS3 compliant, ensuring it meets stringent environmental and safety standards.
• High PSRR: The regulator exhibits a high power supply rejection ( ratioPSRR) of 55dB over a frequency range of 120Hz to 10kHz, effectively filtering out noise and ripple from the input power supply.

LDK120C29R Applications

The LDK120C29R is well-suited for a variety of applications that demand stable and efficient power regulation. Some specific use cases include:

• Consumer Electronics: Ideal for powering sensitive components in devices such as smartphones, tablets, and wearable technology, where space and power efficiency are critical.
• Industrial Equipment: Suitable for low-voltage applications in industrial control systems, sensors, and IoT devices, ensuring reliable operation in harsh environments.
• Medical Devices: Provides stable power for medical equipment and portable medical devices, where precision and reliability are paramount.
• Automotive Electronics: Can be used in automotive applications requiring low dropout voltage and high efficiency, such as infotainment systems and electronic control units.

Conclusion of LDK120C29R

The LDK120C29R from STMicroelectronics is a versatile and efficient linear regulator that offers a range of performance benefits and unique features. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications where power efficiency and noise reduction are essential. The enable control feature and compact packaging further enhance its flexibility and suitability for space-constrained designs. With robust protection mechanisms and compliance with environmental standards, the LDK120C29R stands out as a reliable and high-performance solution for a wide array of electronic systems.