LDK130M18RY

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The LDK130M18RY is a linear voltage regulator from STMicroelectronics. It is part of the LDK Series of voltage regulators which are designed for cost effective and space critical applications. The LDK Series offers high output voltage accuracy and ideal for applications in VoIP, digital video, wireless base station, and other applications requiring low power consumption, low noise, and protection against high supply voltages. With the high efficiency of these devices, the LDK Series is ideal for a wide range of power management applications.

The LDK130M18RY is a three terminal, low-dropout precision regulator. It has an output voltage range of 1.8V to 18V, and a maximum output current of 130mA. It operates on a wide input voltage range of 4.5V to 25V. The maximum junction temperature is 150°C. The LDK130M18RY is available in the TO-220 package.

The LDK130M18RY provides several features which make it an ideal choice for a variety of applications. It has high power supply rejection ratio (PSRR) of 200dB and low output noise of 25uVrms. It is designed with short-circuit protection and thermal shutdown protection. The device also has low quiescent current of 30uA at full load and 0.2uA in sleep-mode. It also features a low temperature coefficient of 0.5ppm/°C.

In terms of application field, ST’s LDK130M18RY voltage regulator is suitable for various devices requiring low noise, low power consumption and also protection against high supply voltages. Such application includes mobile devices, digital video, wireless base station, VoIP, and embedded systems using MCU or DSP.

The LDK130M18RY works on an input voltage range of 4.5V to 25V, and an output voltage range of 1.8V to 18V. When the voltage at the device’s input terminal exceeds its maximum range, it will limit the output current to a given level and protect the device from the overload. The LDK130M18RY operates in two modes: Adjust Mode and Fixed Mode. In Adjust Mode, the output voltage can be adjusted using an external resistor divider, while in Fixed Mode the output voltage is fixed using an internal reference.

The LDK130M18RY voltage regulator supports current limiting and short circuit protection. In case of over current or short-circuit condition, it will limit the output current to a safe level and then shut down. It also provides over-temperature protection. The device can tolerate an ambient temperature up to 150°C and will shut down when the junction temperature exceeds that temperature.

In summary, the LDK130M18RY is an ideal choice for a variety of applications requiring low noise and power consumption. It has a wide input voltage range, high power supply rejection ratio, low temperature coefficient, and low quiescent current. It also offers current limiting, short-circuit protection, and over-temperature protection. With its wide application field, it is suitable for various applications from mobile devices to wireless base stations.

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