SM72238TDE-5.0/NOPB

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The SM72238TDE-5.0/NOPB is a linear voltage regulator from Texas Instrument\'s PMIC - Voltage Regulators - Linear family. They offer a wide range of features and performance for a broad range of applications, allowing engineers and system designers to deliver reliable and precise voltage regulation. Below is a description of SM72238TDE-5.0/NOPB\'s application field and working principle.

Application Field

SM72238TDE-5.0/NOPB is a fixed output low dropout linear voltage regulator. It supports a wide input voltage range of 4.5V to 18V and have an output voltage of 5.0V. It features a maximum output current of 1.1A and a low dropout voltage of 350mV. This makes it well suited for many applications such as low power embedded systems, portable devices, robotics, security systems and medical instrumentation.

Features

The SM72238TDE-5.0/NOPB\'s features include low output voltage ripple, low noise operation, low quiescent currents, over load protection, thermal shutdown and short circuit protection. It offers programmable short circuit protection and flexible sequencing. The device also features high PSRR and ESR capability, allowing it to provide the necessary voltage regulation even in a noisy and high stored energy environment. It supports an ambient temperature range of -40°C to +85°C – making it suitable for a wide range of operating conditions.

Working Principle

The SM72238TDE-5.0/NOPB uses a linear voltage regulator topology in which a reference voltage is used to control the output voltage of the device. The device features an internal MOSFET which is used to regulate the output voltage. The current from the input source is fed through the MOSFET, limiting the output voltage. The error amplifier monitors the output voltage and adjusts the gate voltage of the MOSFET as necessary to ensure that the desired output voltage is maintained. The SM72238TDE-5.0/NOPB also features several other features such as current limiting (dependent on external components), under voltage lockout and thermal shutdown.

Conclusion

The SM72238TDE-5.0/NOPB is an ideal replacement device for applications requiring low dropout performance and low power consumption. Its wide input voltage range and low quiescent currents make it ideal for a variety of applications, while its built in protection features make it reliable and robust under stressful operating conditions. With its excellent PSRR and ESR specifications, the SM72238TDE-5.0/NOPB provides the necessary voltage regulation in noisy and high stored energy operations.

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