L4931CD25

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The L4931CD25 is a low drop linear voltage regulator in a 3-pin TO-92 package, offering a 3.2V fixed output voltage and a maximum output current of 250mA. Its main application fields are in embedded system, where high precision voltage regulation is required for building different types of devices and gadgets.

The L4931CD25 implementing a linear voltage regulation, which is based on the concept of controlling the output current and maintaining a constant voltage across a resistor, controlling the voltage flow. This is achieved by the core feature of the L4931CD25, the Pass Transistor, which acts as a switch to control the current flow. When the voltage across the output capacitor and resistor become too large, the output current is blocked by the Pass Transistor, then the regulator will reduce the current until the voltage across the resistor is back to the threshold value.

In order to achieve the high precision voltage regulation provided by the L4931CD25, a temperature compensated voltage reference is used. This reference helps maintain a stable voltage setting over a wide temperature range. Additionally, the ripple rejection of the L4931CD25 is enhanced due to its internal stabilization techniques applied on the monitoring and control lines.

The L4931CD25 also provides additional features include protected Input/Output terminals, Low reverse leakage current, Thermal protection and logic-level shift. Combined together, these features ensure simplified operation and solid performance of the L4931CD25.

Overall, the L4931CD25 linear voltage regulator is a cost-effective solution for voltage regulation applications in embedded systems. Due to its high precision regulation, its additional features and its relatively small size and power consumption, the L4931CD25 is an ideal choice for any designers looking for a reliable linear voltage regulator.

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