S-1137B1J-M5T1U

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S-1137B1J-M5T1U are three-terminal linear regulators, which can provide a precise output voltage for multiple applications within a wide range of input voltage. These voltage regulators are outstanding for both their low noise performance and wide operating temperature range, which is suitable for applications from 0.8V up to 24V.

The three-terminal design of this linear regulator makes it easy to use, while the integrated short circuit protection, over temperature protection and reverse current protection allows it to ensure the secure operation. The S-1137B1J-M5T1U feature low standby current, and integrated on-chip high precision bandwidth compensator to make it suitable for low power or battery-powered systems.

Application Fields

As the S-1137B1J-M5T1U linear regulator is designed to be ultra-low noise with wide input voltage range, it is well suited for a wide range of applications, such as cellular-phone base stations, wireless communications systems and wireless local area networks etc. The integrated preciosion band-width compensator enables it to provide a precise output voltage even under dynamic loading condition. It also allows it to be used in low power applications such as LED lighting, consumer electronics, personal digital assistants (PDAs), set-top boxes, point-of-sales terminals and commercial stage audio equipment.

Working Principle

S-1137B1J-M5T1U linear regulator are designed with the three-terminal architecture, meaning that input voltage is applied to the input pin, while the output voltage is regulated on the voltage-sense pin. The output voltage is regulated by feedback provided from the voltage-sense pin to the comparator, which compares its value with an internal reference voltage to control the output current flowing into the output pin.

The linear regulator utilizing a high gain current amplifier to drive a silicon NPN power transistor connected in series with the output. The feedback network will make sure that the output voltage is accurately regulated regardless of temperature, AC voltage line changes and load current variations. The amplifier is designed to be a wide-band, low-noise precision unit, meaning that the linear regulator offers stable output over a wide range of input supply and loading conditions. It provides a much higher level of stabilizing control than other regulator types.

Furthermore, the S-1137B1J-M5T1U linear regulator integrates a short circuit protection circuit to ensure a secure protection against accidental short circuit events. The regulator also features a thermal shutdown circuit which immediately powers off the device if the chip temperature rises above a certain limit. This minimize the possibility of a catastrophic failure and protects the device from overheating.

The S-1137B1J-M5T1U linear regulator offer an efficient, reliable and cost effective solution for a variety of applications. Its strong performance, wide temperature range and power protection makes it suitable for a wide range of industrial, automotive and consumer applications where reliable and accurate regulation of output voltage is necessary.

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