SIP21107DT-30-E3

Current - Output:	150mA
Base Part Number:	SIP21107-30
Supplier Device Package:	TSOT-23-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Temperature, Short Circuit
Control Features:	Enable, Power Good
PSRR:	72dB ~ 38dB (1kHz ~ 100kHz)
Current - Quiescent (Iq):	85µA
Series:	--
Voltage Dropout (Max):	0.22V @ 150mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3V
Voltage - Input (Max):	6V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Introduction:MCU-powered systems often require constant voltage, but power is supplied to the system at different voltage. To ensure that the system can work stably and efficiently, a device known as a voltage regulator is needed. SIP21107DT-30-E3 is an example of such a regulator. It is a linear, low-dropout (LDO) regulator, classified as a low-noise, low-power, low-dropout voltage regulator. In this article, we will discuss the application field and working principle of SIP21107DT-30-E3.Application Field of SIP21107DT-30-E3SIP21107DT-30-E3 is ideal for applications requiring good noise/transient performance and low power dissipation, such as mobile and DSCs, PDAs, MP3 players and media players. This voltage regulator can also be used for notebook and desktop PC motherboards, media centers, automotive audio systems, and more.The output current of SIP21107DT-30-E3 is up to 500 mA, and the dropout voltage is only 0.2V(Typ). This indicates a very good efficiency, allowing you to achieve stable operation with low power consumption. In addition, its output noise is extremely low, making it suitable for applications that require high precision.Working Principle of SIP21107DT-30-E3The operation of SIP21107DT-30-E3 is relatively simple. When a voltage is applied to the input, it passes through the regulator and is regulated at a constant voltage by the control circuitry within the device. The control circuitry within the device uses a circuit of precision PNP transistors to monitor the output voltage and to adjust the transistor gate at a series resistor-capacitor network.When the output voltage is higher than the regulated voltage, the control circuitry will cause the transistors to reduce conduction and voltage, thus pulling the output voltage down to the desired voltage level. When the output voltage is lower than the regulated voltage, the transistors are turned on to allow more current flow and restore the output voltage to the desired level.This mechanism modulates the output current accordingly to maintain the desired voltage level, and thus the output current is regulated.Conclusion:SIP21107DT-30-E3 is a low-noise, low-power, low-dropout voltage regulator, ideal for applications requiring stable conditions. Its applications include mobile and DSCs, PDAs, notebooks, desktop PCs, media centers, automotive audio systems, and more. Its working principle is based on precision PNP transistors that monitor the output voltage and adjust the transistor gate at a series resistor-capacitor network to regulate the output current and maintain the desired voltage level.

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