SPX385N-L-2-5

PMIC stands for Power Management Integrated Circuits, and a Voltage Reference is one of the many categories of PMICs. The SPX385N-L-2-5 Voltage Reference is a fairly common model, and it has a variety of uses and understanding the working principles behind it can help get the most performance out of it.

Application Field

The SPX385N-L-2-5 Voltage Reference is a single-channel device designed to maintain a precise reference voltage for a wide range of applications. It can be used in power converters, analog to digital converters, amplifiers, data converters, motor controls, lighting controls, and many other types of applications. The primary benefit of the SPX385N-L-2-5 is its tiny size, yet it still manages to maintain extreme accuracy and stability.

The SPX385N-L-2-5 is able to provide both positive and negative voltage references, with a wide range of operating temperatures reaching up to +125°C. It operates on a voltage of 2.2 V to 5.5 V, with input and output current ratings at 10 mA and a maximum output current at 120 mA. The minimum reference voltage is 1.24V, with a maximum reference voltage of 4.2V. This makes it perfect for a variety of digital and analog systems that require a precise reference voltage.

Working Principle

The SPX385N-L-2-5 Voltage Reference operates on the basic principle of a voltage reference circuit. This consists of a cascade of P-type and N-type transistors, resistors, and diodes in order to maintain a precisely regulated voltage. As the input voltage varies, the circuit continually adjusts its output voltage in order to maintain the precise reference voltage. This is done by moving current through the transistors and allowing the resistors to regulate current flow.

The accuracy and stability of the voltage reference is further increased by the addition of a bandgap reference. This is essentially a circuit that uses a combination of resistors and diodes in order to maintain a precise voltage across its terminals. This reference voltage is used by the voltage reference circuit to dynamically adjust the output voltage of the SPX385N-L-2-5. This allows the circuit to maintain its precise reference voltage regardless of fluctuations in the input voltage.

Overall, the SPX385N-L-2-5 Voltage Reference is a precise, efficient, and reliable device that can be used in a wide range of applications. Its tiny size, wide operating temperature range, and precise reference voltage make it suitable for a variety of applications. Its working principles are simple and easy to understand, and its wide range of input and output currents make it suitable for use in a variety of systems.