ISL78302ARFWZ-T

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The ISL78302ARFWZ-T is a linear voltage regulator for a variety of applications such as automotive, mobile, consumer, and power-supply circuits. This device integrates a low-dropout linear regulator, wherein the output voltage is adjustable with a resistor divider, which guarantees power supply accuracy without the need of additional signal control. Additionally, it provides overload protection, which helps to ensure system reliability in case of a prolonged overload. The ISL78302ARFWZ-T is available in a lead-free, MSL1 (Moisture Sensitivity Level1) SO-8EP package.

The ISL78302ARFWZ-T is a single-output adjustable-voltage linear regulator that can deliver up to 2A of output current. The device features an internal thermal cutoff circuit for overload protection, which disconnects the output voltage from the circuit if the output current exceeds 2A. Additionally, it features an input current limit which helps protect the device from damaging high-drain conditions. The device can also be programmed to shut down the output at a specific over-voltage level. It also provides under-voltage protection which keeps the device from drawing too much current when the input voltage is below its normal operating range.

The ISL78302ARFWZ-T features an adjustable output voltage and PMOS current limit, making it an ideal device for applications such as power supplies, microcontrollers, digital sockets, and other linear applications. The device’s standby current is low, which helps to preserve battery life. Additionally, it operates over the extended -40°C to +125°C temperature range, making it suitable for various industrial, automotive, and medical applications. The ISL78302ARFWZ-T can also be used as a pre-regulator for switching regulators or digital power-supply systems.

The ISL78302ARFWZ-T operates using a linear feedback control loop, which adjusts current to the pass transistor to maintain a constant output voltage. The device uses a resistor divider to set the output voltage, and requires no additional signal control. The device employs a PMOS current-limit circuit to monitor the output current and control the over-current protection. If the output current exceeds the programmed limit, the current limit circuit brings the current to the pass transistor back to the programmed current limit. This helps to protect the device from damaging overload conditions.

The ISL78302ARFWZ-T provides a fixed output voltage with the ability to adjust the output voltage with a resistor divider. The device functions over a wide input voltage range from 2~21V, providing accuracy distributed over temperature and line variations. It provides a low dropout of 48mV, which helps to minimize temperature gradients. Additionally, it features low ground pin current and low Noise, which ensures system stability and improved dynamic performance.

The ISL78302ARFWZ-T includes a thermal protection circuit, which helps to prevent the device from damage caused by excessive thermal stress. The device also provides an internal soft-start feature which can be programmed with an external capacitor. The device is capable of providing up to 2A of output current, making it suitable for a variety of applications. It also features an integrated power-on reset circuit, which helps to ensure correct system initialization and start-up.

In summary, the ISL78302ARFWZ-T is an adjustable voltage linear regulator for various applications such as automotive, mobile, consumer, and power-supply circuits. It features low ground pin current, low noise, and a low dropout of 48mV, with adjustable output voltage and PMOS current limit. It also provides overload protection, thermal protection, and power-on reset which helps to protect the device and ensure system reliability in case of a prolonged overload. This device is available in a MSL1 (Moisture Sensitivity Level1) SO-8EP package.

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