STMicroelectronics

LDK220C40R

LDK220C40R Description

The LDK220C40R is a high-performance linear regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This IC is part of the Power Management (PMIC) category and is specifically tailored for applications requiring a fixed output voltage and low power consumption. The regulator features a fixed output voltage of 4V and can deliver a maximum output current of 200mA. It operates with an input voltage range up to 13.2V, ensuring compatibility with a wide range of power sources.

LDK220C40R Features

• Output Type: Fixed, providing a stable 4V output voltage.
• Input Voltage Range: Up to 13.2V, ensuring flexibility in power supply options.
• Output Current: 200mA, suitable for low to medium power applications.
• Number of Regulators: Single regulator design, simplifying circuit design and reducing component count.
• Output Configuration: Positive output voltage, ideal for standard power supply requirements.
• Supply Current: Maximum of 100 µA, contributing to low power consumption.
• Dropout Voltage: Maximum of 0.35V at 200mA, enhancing efficiency at low input-to-output voltage differentials.
• Quiescent Current: 90 µA, minimizing power loss during standby or low-load conditions.
• Power Supply Rejection Ratio (PSRR): 55dB to 50dB across a frequency range of 120Hz to 10kHz, ensuring high performance in noisy environments.
• Control Features: Enable function, allowing for dynamic control and power savings.
• Protection Features: Over-current and over-temperature protection, safeguarding the IC and connected components from damage.
• Package Type: SOT323-5, a compact surface-mount package suitable for space-constrained designs.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for various manufacturing environments.

LDK220C40R Applications

The LDK220C40R is ideal for a variety of applications where a stable, low-power, and compact solution is required. Some specific use cases include:

• Consumer Electronics: Portable devices, such as smartphones, tablets, and wearables, where low power consumption and small form factor are critical.
• Industrial Systems: Sensor modules and IoT devices that require reliable power regulation and minimal power draw.
• Medical Devices: Portable medical equipment, such as glucose meters and portable monitors, where precision and low power are essential.
• Automotive: Ancillary systems in vehicles, such as infotainment and telematics, where a stable power supply is necessary.

Conclusion of LDK220C40R

The LDK220C40R from STMicroelectronics stands out as a robust and efficient linear regulator, offering a combination of low power consumption, high PSRR, and comprehensive protection features. Its compact SOT323-5 package and fixed 4V output make it an excellent choice for a wide range of applications, from consumer electronics to industrial and medical devices. The enable control feature and over-current and over-temperature protections further enhance its versatility and reliability. For engineers seeking a reliable, low-power solution, the LDK220C40R is a standout option in the power management IC market.