STMicroelectronics LDK120PU25R Low Drop-Out Voltage Regulator

The LDK120PU25R from STMicroelectronics is a high-performance, low drop-out (LDO) voltage regulator designed to deliver a stable and precise output voltage. This device is particularly suitable for battery-powered applications due to its low quiescent current and high efficiency at low voltage differentials between the input and output.

With an output voltage of 2.5V, the LDK120PU25R is capable of providing up to 200 mA of continuous load current, making it an excellent choice for powering sensitive analog and digital circuits. The device features a typical dropout voltage of just 120 mV at maximum load, which helps to maximize battery life in portable applications.

The LDK120PU25R comes in a small, surface-mount, SOT-89-3 package, which is ideal for space-constrained designs. It is designed with an internal current and thermal limit to protect the device under abnormal operating conditions. Additionally, the LDO has a fast transient response, ensuring stable performance for applications with dynamic load changes.

Key features of the LDK120PU25R include:

• Output voltage: 2.5V
• Output current: Up to 200 mA
• Low dropout voltage: 120 mV typical at max load
• Low ground current
• High PSRR: 65 dB at low frequencies
• Stable with low ESR ceramic capacitors
• Thermal shutdown and current limiting protection features
• Temperature range: -40°C to 125°C
• Package: SOT-89-3

This voltage regulator is perfect for a wide range of applications, including mobile phones, tablets, and other portable devices, as well as for powering microcontrollers, low-power logic, and RF devices. Its ability to maintain a consistent voltage in the face of varying input levels and load conditions makes the LDK120PU25R a reliable component for precision electronics.

Overall, the LDK120PU25R LDO voltage regulator offers designers a compact, efficient, and robust power management solution that is easy to integrate into a variety of electronic systems.