S-1133B12-U5T2U

Current - Output:	300mA
Supplier Device Package:	SOT-89-5
Package / Case:	SOT-89-5/6
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current, Thermal Shutdown
Control Features:	Enable
PSRR:	70dB (1kHz)
Current - Supply (Max):	90µA
Current - Quiescent (Iq):	1µA
Series:	S-1133
Voltage Dropout (Max):	0.88V @ 100mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.2V
Voltage - Input (Max):	10V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The S-1133B12-U5T2U, is a low dropout three-terminal adjustable voltage regulator that is part of a family of linear voltage regulator integrated circuit (IC)s, specifically, linear voltage regulators of the PMIC type. As part of the family of PMIC (power management integrated circuit) voltage regulators, the S-1133B12-U5T2U offers a low noise output with a wide input range and a high current output capability. It is designed to provide an adjustable positive voltage output from an unregulated positive input, which can be either an on-board power rail or an externally applied voltage.

The S-1133B12-U5T2U is a linear regulator capable of providing an adjustable positive voltage output from an unregulated positive input. This input can either come from an on-board power rail or an externally applied voltage. It utilizes a three-terminal configuration to ensure a stable output, while its integrated control circuitry provides a low dropout voltage of approximately 1.3V (with a 5V input). The IC also includes internal overcurrent and thermal protection circuitry to protect itself and the circuit it regulates from harm in the event of an unexpected power surge or overload.

In terms of its application field, the S-1133B12-U5T2U can be used in a variety of applicatio ns, includin g automotive, telecommunication s, consumer and industrial application s. It is especially suitable for applications where space is at a premium, due to its small form factor. In addition, the device is capable of delivering up to 1 A of output current, with a typical dropout voltage of 1.3V. It is well suited for use in applications where high accuracy and low output noise are important, such as telecommunications, as well as in applications where high current output is necessary.

As for its working principle, the S-1133B12-U5T2U linear voltage regulator is built around a differential input, error amplifier, PNP pass transistor, and current limit circuit. The differential input of the error amplifier is connected to an external voltage divider, which defines the reference voltage that sets the output voltage. The error amplifier senses the difference between the reference voltage and the output voltage. if the two voltages differ, the error amplifier amplifies the difference and creates an output voltage to the PNP transistor. This, in turn, adjusts the output current, thus setting the output voltage to the desired level. The current limit circuit prevents excessive current from being delivered to the load by modulating the base-emitter voltage of the PNP pass transistor.

Overall, the S-1133B12-U5T2U is a comprehensive linear voltage regulator that offers high accuracy and low output noise, as well as efficient operation and a wide input range. Its applications in automotive, telecommunications, consumer, and industrial applications hint at its versatility and make it an ideal choice for power management applications which demand the best performance. Comparing it to competitors, the S-1133B12-U5T2U is a reliable, efficient and cost-effective solution to voltage regulation.

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