STMicroelectronics

LDK220U32R

LDK220U32R Description

The LDK220U32R is a high-performance linear regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This IC is specifically engineered for power management applications, offering a fixed output voltage of 3.2V and a maximum output current of 200mA. The device is housed in a compact SOT89 package, making it suitable for surface mount applications.

The LDK220U32R is designed to operate within an input voltage range up to 13.2V, ensuring robust performance across a wide range of input conditions. Its low quiescent current of 90 µA and maximum supply current of 100 µA make it highly efficient, particularly in low-power and battery-operated systems. The regulator also features a high power supply rejection ratio (PSRR) of 55dB to 50dB across frequencies from 120Hz to 10kHz, which helps in maintaining stable output voltage even under varying input conditions.

LDK220U32R Features

• Output Type: Fixed, providing a stable 3.2V output.
• Input Voltage Range: Up to 13.2V, ensuring compatibility with various power sources.
• Output Current: 200mA, sufficient for a wide range of low-power applications.
• Low Quiescent Current: 90 µA, contributing to high efficiency and long battery life.
• Low Supply Current: 100 µA, further enhancing energy efficiency.
• High PSRR: 55dB to 50dB across 120Hz to 10kHz, ensuring stable output voltage.
• Control Features: Enable function, allowing dynamic control of the regulator.
• Protection Features: Over-current and over-temperature protection, ensuring reliability and longevity.
• Package Type: SOT89, ideal for surface mount applications.
• Compliance: ROHS3 compliant and REACH unaffected, meeting environmental standards.

LDK220U32R Applications

The LDK220U32R is ideal for a variety of applications where a stable, low-power supply is required. Its compact size and high efficiency make it suitable for:

• Battery-operated devices: Portable electronics, wearables, and IoT devices benefit from its low quiescent current and high efficiency.
• Embedded systems: Providing a stable power supply for microcontrollers, sensors, and other low-power components.
• Consumer electronics: Powering small devices such as smart home appliances and handheld gadgets.
• Industrial applications: Powering low-power modules in industrial automation and control systems.

Conclusion of LDK220U32R

The LDK220U32R from STMicroelectronics is a versatile and efficient linear regulator, offering a stable 3.2V output with a maximum current of 200mA. Its low quiescent current and high PSRR make it an excellent choice for low-power applications, ensuring long battery life and stable performance. The inclusion of over-current and over-temperature protection further enhances its reliability, making it suitable for a wide range of applications. Whether used in portable devices, embedded systems, or industrial modules, the LDK220U32R provides a reliable and efficient power management solution.