S-1137B25-I6T2U

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The S-1137B25-I6T2U is a low-dropout (LDO) linear voltage regulator, which belongs to the PMIC voltage regulator family. It is designed to provide a constant, stable output voltage for systems using low current, high efficiency and small size. Its output current increases with greater input voltages and load conditions, making it ideal for a variety of applications.

The S-1137B25-I6T2U has an input voltage range from 2.7V to 6.0V, with a maximum output current of 150 mA. The output voltage is adjustable from 0.8V to 5.0V with a programmable output voltage accuracy of ±10%. It is also optimized to work in a wide temperature range, with a maximum junction temperature of 140°C. Moreover, the device includes an enable input pin, allowing the user to enable or disable the regulator when desired.

The S-1137B25-I6T2Uoffer several features to improve system reliability and performance. These include regulation loop bandwidth, diagnostic flag reset and protection. The regulation loop bandwidth and diagnostic flag reset help improve system efficiency and system stability when the device operates under light-load conditions. In addition, the device includes over-temperature protection (OTP), over-current protection (OCP), and over-voltage protection (OVP) for safe operation of the system.

Moreover, the device features an output over-voltage latchoff protection to prevent over-voltage damage in case of a fault condition. Lastly, the device features low standby current and power consumption to help reduce system power consumption and improve efficiency, particularly in battery-powered systems.

In terms of application field, the S-1137B25-I6T2U can be used for a variety of low-current high-efficiency applications such as powering CPU, microcontroller, and other high-performance integrated circuits. It can also be used in automotive applications, medical devices, and consumer electronics. Additionally, the device can be used to power LED backlight, LED display, and other LED lighting applications.

The working principle of the S-1137B25-I6T2U voltage regulator is based on the classic linear voltage regulator topology. This topology is based on the transistor-transistor logic (TTL) and works by comparing an error voltage Vref to the actual output voltage Vo. When Vref voltage is higher than Vo, the output transistor turns on and the output voltage rises. On the other hand, when Vref is lower than Vo, the output transistor turns off and Vo decreases.

The voltage output is regulated using an internal reference voltage generated by the bandgap circuit. This reference voltage is compared to the input voltage and adjusted until the output voltage is the same as the reference voltage. Consequently, the output voltage is kept constant or regulated to the desired level. The device also incorporates over-current, over-voltage and over-temperature protection features to protect against possible damage from unexpected conditions.

In conclusion, the S-1137B25-I6T2U is a low-dropout (LDO) linear voltage regulator belonging to the PMIC voltage regulator family. It is designed to provide a constant, stable output voltage for systems using low current, high efficiency and small size. Its output current increases with greater input voltages and load conditions, making it ideal for a variety of low-current, high-efficiency applications such as powering CPU, microcontroller, and other high-performance integrated circuits. Its working principle is based on the classic linear voltage regulator topology, which works by comparing the reference voltage to the actual output voltage to maintain the output voltage at the desired level.

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