S-1206B31-M3T1U

Voltage Dropout (Max):	0.23V @ 100mA
Supplier Device Package:	SOT-23-3
Package / Case:	TO-236-3, SC-59, SOT-23-3
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Over Current
Control Features:	--
PSRR:	--
Current - Quiescent (Iq):	1.5µA
Current - Output:	250mA
Series:	S-1206
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.1V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The S-1206B31-M3T1U is a linear voltage regulator from the PMIC - Voltage Regulators - Linear category. As its name suggests, it is a power management integrated circuit (PMIC) designed to adjust the output voltage of an electronic device. This article will discuss the application fields and working principle of the S-1206B31-M3T1U.The S-1206B31-M3T1U is well-suited for a variety of applications. It is used in embedded applications such as medical devices, smart home appliances, industrial controllers, and measurement instruments. It is also used as an output power regulator in consumer electronics such as smartphones, tablets, laptops, and desktop computers. In each application, the S-1206B31-M3T1U provides reliable voltage regulation with a maximum output current of 1.45A and a high ripple rejection rate.The S-1206B31-M3T1U works by regulating the output voltage based on a reference voltage. The reference voltage is adjustable and may be set anywhere from 1.25 to 5V. When the input voltage is greater than the reference voltage, the regulator shuts off, keeping the output voltage at the reference level. When the input voltage is lower than the reference voltage, the regulator turns on and adjusts the output voltage to the reference level.The S-1206B31-M3T1U also features an output short-circuit protection, which prevents damage if an output pin is in an unintended state. It also features an over-temperature protection which protects the regulator from excessive heating. Furthermore, the S-1206B31-M3T1U has an input undervoltage lockout, which prevents the regulator from turning on if the input voltage is below the regulated output voltage. This protection is especially important in embedded applications.In addition to voltage regulation, the S-1206B31-M3T1U also features external fault protection with an N-MOSFET. This allows the regulator to shut off when a fault is detected. Lastly, the S-1206B31-M3T1U has an external resistor and capacitor for ripple filtering. These components reduce noise from the output and prevent embedded systems from undergoing interference.Overall, the S-1206B31-M3T1U is a reliable voltage regulator designed for use in embedded, consumer electronics, and industrial applications. Its adjustable reference voltage, output short-circuit protection, over-temperature protection, and external fault protection make it a great choice for a variety of applications. Additionally, its external components for ripple filtering make it a great choice for embedded systems.

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