S-1333B20-M5T1U3

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PMIC - Voltage Regulators - Linear are commonly and popularly used in a wide variety of applications in different industrial and commercial sectors. This article will discuss the application field and working principle of S-1333B20-M5T1U3, one of the best-known linear voltage regulators.

S-1333B20-M5T1U3 is a two-pin Low Dropout (LDO) linear regulator with an adjustable output between 0.9v and 18.5v. Its output voltage is easily adjusted via the on-board trim pin. It is designed to provide exceptionally low noise output and very low quiescent power consumption. S-1333B20-M5T1U3 is ideally suited for cost sensitive applications, such as portable and cost-sensitive industrial and power supplies.

The most common applications of S-1333B20-M5T1U3 are power supply applications such as, micro controller-based systems, DC/DC converters and Li-Ion batteries. S-1333B20-M5T1U3 is also used in automotive, communications, computer, consumer, industrial and medical devices. It is mainly suitable for use in applications where space and efficiency are important.

The primary function of S-1333B20-M5T1U3 is to reduce input voltage, typically from the battery voltage or external voltage source, down to a stable lower voltage output. It operates based on a series regulator or “voltage follower” topology. This type of topology ensures that the input voltage is “clamped” or stabilized at the output voltage level. Thus, the output voltage remains very accurate and does not vary significantly with input voltage variations.

The S-1333B20-M5T1U3 regulator uses advanced bi-directional technology to reduce the output voltage ripple and improve its efficiency. This advanced technology increases the output voltage output step size and reduces the current jitter on the control loop. This helps reduce system noise and improves reliability.

The maximum input voltage that S-1333B20-M5T1U3 can tolerate is 20V. The dropout voltage, or the difference between the input voltage and the output voltage, is typically 100mv at full load. The maximum output current is 250mA. S-1333B20-M5T1U3 is capable of providing ultra-low noise and regulated output current in the range of 10mA to 0.2mA. The quiescent current consumption is typically less than 1mA.

The S-1333B20-M5T1U3 features an adjustable high-bandwidth error amplifier, which allows the device to accurately control the output voltage during high transient load conditions. This feature results in improved line and load regulation. The over current and short circuit protection limit the device from drawing excessive current from the input line.

Overall, the S-1333B20-M5T1U3 is a low noise, power efficient and cost-effective linear voltage regulator ideally suited for cost sensitive applications. It provides a highly reliable and stable output voltage, allowing for cost optimization and design flexibility.

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