VRE305JS

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

A voltage reference, also known as a reference voltage source or reference element, is an electronic component or integrated circuit that produces a voltage output that remains constant even when the power supply or circuit loading changes. The essential purpose of a voltage reference is to provide a stable, known voltage value to other components of a circuit. Any change in the applied voltage or current conditions in the circuit will not have an effect on the reference output. Voltage references are also known as bandgap references, as they make use of the positive temperature characteristic of diode leakage currents to form an on-chip temperature-stable reference voltages.

A VRE305JS Voltage Reference combined with an adjustable current source is the PMIC component of choice for medium power-sensitive applications such as low voltage power supplies, overvoltage protection, and LED drivers. It supports input voltages from 2.7 V to 5.5 V, output voltage from 0.7 V to 4.4 V, and current rating up to 105 mA. The VRE305JS is specifically designed for simplicity, efficiency, and minimized component count.

The working principle of the VRE305JS is based on a linear voltage regulator topology. It takes a DC voltage from the input source, and through a resistive divider, the input voltage is reduced to a suitable comparator reference voltage level. The output stage of the circuit consists of an adjustable current sink, which is used to set either a constant regulated output voltage, or an adjustable reference voltage. In addition, the output voltage is maintained with little change in current.

The VRE305JS also includes an error amplifier and compensation design to ensure accurate output voltage. The error amplifier compares the feedback voltage to a reference voltage from an internal bandgap reference. The feedback voltage is generated from the collector of the output stage by an adjustable resistor. The error amplifier then produces an output that is proportional to the difference between the two voltages. This output is then used to adjust the biasing current to the output stage which in turn maintains the output voltage at the desired level. This allows the VRE305JS to maintain a stable output voltage with varying input voltage, load and temperature conditions.

In addition to its excellent reference accuracy, the VRE305JS also has a low quiescent current consumption and high system efficiency. It supports a wide range of input and output voltages, making it suitable for a variety of applications such as low voltage power supplies, LED drivers and battery management. It also offers a wide range of add-on features such as overvoltage protection, short-circuit protection and adjustable current source, enabling the design of a very simple and efficient power supply.

The VRE305JS Voltage Reference is a robust and reliable PMIC component that is suitable for a wide range of power management applications. It is designed for high accuracy and efficiency, and offers a wide range of input and output voltages for added flexibility. With its low power consumption and excellent performance characteristics, the VRE305JS is the ideal choice for medium power-sensitive applications.

The specific data is subject to PDF, and the above content is for reference