SPX1117M3-L-1-8

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The SPX1117M3-L-1-8 is a three-terminal, low dropout voltage regulator designed to regulate the output voltage of a power supply. It operates by maintaining a constant output voltage, even when the input voltage or load current varies. It is an example of a linear voltage regulator, a type of voltage regulator designed to keep output voltages low and constant, even under varying input or load conditions.

The SPX1117M3-L-1-8 voltage regulator is designed to operate from 2.7 V to 6.5 V input voltage range with a minimum external component requirement. The regulator supports a 0.8V to 5 V adjustable output voltage range, with a 0.8% maximum load regulation, a 20 μA (typical) ground current, and an adjustable 20 mA load current. OS-CON capacitors are required for input and output decoupling, and an external resistor divider must be employed to set the output voltage. The regulator also includes an active-low enable pin, which can be used to put the device in a low-power shutdown mode.

The SPX1117M3-L-1-8 voltage regulator is particularly well-suited for applications that require the regulator to remain stable in the presence of large, wide-ranging input and output voltage variations. It is designed for use in on-board voltage regulation applications and is ideal for powering peripherals and subsystems that require frequent voltage adjustments in order to meet their power requirements. Examples of such applications include portable devices, digital video devices, and embedded equipment.

The working principle of the SPX1117M3-L-1-8 voltage regulator is based upon the N-channel MOSFET technology. In this type of linear regulator, a pass transistor is used to regulate the output voltage. An external bias voltage is applied to the gate of the pass transistor, which then acts as a variable resistor in order to maintain the output voltage at the desired level. The bias voltage is typically generated by a voltage-divider circuit, and the output voltage is set by the voltage-divider ratio. This type of regulator uses the principle of feedback control to regulate the output voltage, and is thus extremely efficient and stable.

In conclusion, the SPX1117M3-L-1-8 voltage regulator is a three-terminal, low dropout device that is specifically designed for on-board voltage regulation applications. It is a linear voltage regulator that uses the N-channel MOSFET technology and the principle of feedback control to deliver a highly efficient, stable output voltage. The regulator is particularly well-suited for applications that require the output voltage to remain consistent despite varying input or load conditions. It is ideal for powering peripherals and subsystems that require frequent voltage adjustments in order to meet their power requirements.

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