S-T111B42MC-OHBTFU

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The S-T111B42MC-OHBTFU is part of a wide range of voltage regulators from STMicroelectronics designed for use in stabilising the power voltage of electronic devices and system units. Linear voltage regulators offer an efficient, cost-effective solution for maintaining a stable output voltage in a wide range of applications. The S-T111B42MC-OHBTFU is a single voltage regulator available in standard SMD packages for easy surface mounting.

Application Field

The S-T111B42MC-OHBTFU is most suited to providing linear, fixed output voltage applications requiring up to 1A of output current handling capability. A typical example of an application would be the stabilisation of the power voltage for an embedded or industrial system. It is suitable for use in high power applications, as well as environments where a low dropout voltage is required. The design of the device provides very low output voltage ripple, making it an ideal solution for noise-sensitive applications. The device also offers extended temperature range and enhanced protection features, making it suitable for use in harsh operating environments.

Working Principle

The S-T111B42MC-OHBTFU voltage regulator works by controlling the voltage of an output current. The device contains an input voltage, a set of resistors and a stabilising circuit, as well as a number of protection and control functions. The input voltage is applied to the regulators input, and the output current is regulated using the resistors and stabilising circuit to ensure a stable voltage output. The current flow is monitored and the regulator adjusts the output voltage according to the current at the output. The device also contains a number of protection features, such as over-current protection, reverse current protection, and temperature protection.

Features

The S-T111B42MC-OHBTFU voltage regulator offers a wide range of features that make it an ideal device for a wide range of applications. It has a wide input voltage range (4.5V to 18V), a low dropout voltage (as low as 0.4V) and a low quiescent current (50uA). It also offers an adjustable output voltage (from 0.8V to 4.2V) and a maximum output current of 1A. The device features an on-chip thermal shutdown, reverse current protection and over-current protection, as well as low output voltage ripple.

Conclusion

The S-T111B42MC-OHBTFU voltage regulator from STMicroelectronics is part of a range of linear voltage regulators suitable for use in a range of applications, such as stabilising the power voltage for embedded or industrial systems. It offers a wide input voltage range and adjustable output voltage, as well as enhanced protection features. The device also offers low quiescent current and low dropout voltage, making it an ideal solution for low power applications.

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